China shenzhen xingte technology co.,ltd Company News

Congratulate Xingte Technology, on winning the IATF 16949 standard certification   Recently, Shenzhen Xingte Technology Co., Ltd. (hereinafter referred to as "Xingte Technology") officially passed the strict audit of the International Automotive Task Force (IATF) and won the IATF 16949 automotive quality management system registration certification certificate, indicating that the company's professional manufacturing services in the field of automotive horns have reached the quality management standards of the international automotive industry. Xingte Technology, as a national specialized and new little giant enterprise, passed the IATF 16949 certification this time, which is not only a high recognition of the company's product quality, delivery capabilities, and quality management level, but also a strong proof of its solid steps in the field of automotive horns. The scope of certification registration covers the production of small speakers, which will provide customers with higher standards and more professional horn manufacturing services.   IATF 16949 is a global automotive industry quality management standard developed by the International Automotive Task Force. It is a global automotive industry quality management system standard that adds all-round requirements and specifications for the automotive industry on the basis of ISO 9001. This certification system places extremely strict requirements on enterprises in terms of product design, production process, process control, supply chain management, etc. It aims to ensure the stability and consistency of product quality by standardizing and improving the quality management of each link in the automotive supply chain to meet the needs of automobile manufacturers and end users. In the process of preparing for the IATF 16949 certification, Xingte Technology has comprehensively sorted out and optimized its quality management system. The company not only strictly controls every link in the production process, but also conducts systematic training for employees to ensure that every employee deeply understands and implements the requirements of the quality management system. After strict review by international organizations, including document review, on-site audit and evaluation of continuous improvement plans, Xingte Technology finally passed the certification with outstanding performance and excellent management level and obtained the IATF 16949 certificate.   The IATF 16949 standard certification is a recognition and affirmation of Xingte Technology's past efforts, and it is also an encouragement and spur to the company's future development. As one of the important components of automobiles, small speakers have been used in many aspects of automobiles. They are key components for acoustic and electrical signal transmission and intelligent voice recognition, and directly affect important indicators such as intelligent driving, comfort, and safety of automobiles. After obtaining IATF 16949 certification, Xingte Technology will be able to provide customers with reliable and high-quality speaker products that meet international standards. In the future, Xingte Technology will take this opportunity to continuously improve its own strength and management level, provide customers with better products and services, and jointly promote the prosperity and development of the automobile speaker manufacturing industry.

We are thrilled to announce our participation in the 2024 Vietnam International Motor and Coil Exhibition, scheduled to be held from May 8th to 10th, 2024, Our booth number is 89A. It is with great pleasure that we extend this invitation to you to join us at this prestigious event.   This exhibition will provide an excellent opportunity for networking, knowledge exchange, and exploring potential collaborations. We cordially invite you to visit our booth and engage with our team to learn more about our products and services. Date: May 8th – May 10th, 2024 Venue: WTC BDNC, Vietnam

  Multi-strand Winding     Single wire winding     When it comes to motor stator winding machines, there are two main winding techniques employed: single-strand winding and multi-strand winding. Each approach has its own distinct advantages and considerations. Let's delve into the differences between these two winding methods. Single-strand winding, as the name suggests, involves the use of a single wire to create the coils of the stator windings. This technique is commonly used in smaller motors or applications where space is limited. Single-strand winding offers a few notable advantages. Firstly, it allows for the use of thinner wires, which can lead to a higher overall number of turns and, consequently, a greater magnetic field strength. Additionally, single-strand winding generally results in lower electrical losses due to reduced proximity effects and lower eddy current losses. However, single-strand winding does have its drawbacks. The winding process can be time-consuming, as each coil has to be formed individually with a lengthy wire. Moreover, the individual wires can be delicate and more prone to damage during the winding process. Furthermore, single-strand winding may not be suitable for motors with high power requirements or those designed to operate at elevated speeds. On the other hand, multi-strand winding involves using multiple parallel wires to form the motor coils simultaneously. This technique is often employed in larger motors or applications where high power output is required. Multi-strand winding offers several benefits. Firstly, it reduces the winding time significantly, as multiple coils are formed at once. This technique also enhances the mechanical strength of the windings, making them more robust and less susceptible to damage. Additionally, multi-strand winding is well-suited for motors operating at high speeds or handling substantial electrical loads. However, multi-strand winding has some considerations to keep in mind. The use of thicker wires may limit the number of turns per coil, potentially resulting in a slightly weaker magnetic field. The proximity effects and eddy current losses may also be slightly higher due to the larger wire sizes and increased inter-strand coupling. In summary, the choice between single-strand winding and multi-strand winding depends on various factors such as motor size, power requirements, space limitations, and operational speed. Single-strand winding offers higher turns density, lower electrical losses, and is suitable for smaller motors. On the other hand, multi-strand winding allows for faster winding, increased mechanical strength, and is preferred for larger motors or high-power applications. Understanding the distinctions between these winding techniques helps manufacturers select the most appropriate method for their specific motor design and performance needs.

The transformers and inductors are two important devices used in electronics. There exists a misconception that these are the same because they look similar in construction and appearance. However, one differs from the other in several matters including applications, design and construction elements, among others. This post aims to familiarize you with some of the notable differences between these two magnetic components.       Differences between Transformers and Inductors     The following points elucidate the key variances between these two components, aiding in informed purchasing decisions. Let's delve into transformers first.   1, Transformers are crafted with two coils of insulated wires wound around a ferrite, iron, or steel core. 2, Their primary role involves converting high-voltage AC into low-voltage and vice versa. 3, Transformers consist of primary and secondary coils. When the primary coil connects to an AC source, a fluctuating magnetic field forms around the core. This induces an alternating current in the secondary coil, generating an output when linked to a separate circuit. They find extensive use in LED lighting, commercial and medical power conversion, as well as high-voltage and electrostatic spraying applications. 4, Common transformer types include step-up, step-down, auto transformers, power transformers, and toroid core transformers. Now, let's shift focus to inductors.   1, Inductors are passive electrical elements, also known as coils or chokes, composed of insulated magnet wire wound into a coil. 2, Their primary function is to provide a specific level of inductance in a circuit. 3, When current flows through the coil, energy momentarily stores in the magnetic field within the core material (ranging from iron, ferrite, iron powder, amorphous, to other high reluctance materials). The conductor can be insulated enameled wire, copper foil strips, or high-voltage insulated lead wire based on the application. Any change in current through the coil induces a voltage as per Faraday's Law.   4, Key inductor types include air core, powdered iron core, ferrite core, and choke inductors.  Despite their visual similarities, transformers and inductors serve distinct roles in electronic applications. Consult your custom transformer manufacturer for detailed insights into their differing functionalities. This understanding will aid in specifying your requirements accurately to the manufacturer. Custom Coils stands out as a premier manufacturer of custom transformers, inductors, and specialty magnetic components. Feel free to inquire about topics like the 'Differences between Transformers and Inductors' with the Custom Coils team. They offer an extensive range of custom-designed magnetic components tailored to your needs.

Motor winding machines play a crucial role in the automated production of motor cores. This guide elucidates the purpose and functionality of these machines, along with the features they offer.   Xingte Machinery offers a diverse array of equipment catering to various industries, aimed at enhancing operational efficiency. Among our popular offerings, aside from winding machines, are motor winding machines. This article delves into the essence of motor winding machines, their operational aspects, and the standout features that could align with your business requirements.     What Is An Electric Motor Winding Machine?   An electric motor winding machine is a piece of equipment used to wrap various types of motor magnetic cores for diverse applications. Examples include: - Stator core (inner) - Stator core (outer) - Stator core - Rotor core   These motor cores are wound around different components to enable their utilization across a wide range of applications. Motor winding machines are integral to the manufacturing process and are crucial for creating mechanical equipment.   They are primarily employed in crafting motor cores like a stator core, which is part of BLDC. BLDCs find applications in various industries such as aviation, industrial automobile, and civil control systems, offering effective solutions to customers. This underscores the growing importance of expediting the creation and production of these components, a task efficiently carried out by automated motor winding machines.   Motor winding machines come in diverse sizes and designs, including those capable of winding one metal coil at a time or multiple coils simultaneously.   Various types of metal coil winding machines include: - Multi-axis motor winding machine - Rotor motor winding machine - Flyer motor winding machine - Production line   Original Of An Electric Motor Winding Machine   The electric motor winding machine developed by Xingte features a wire device specifically designed for electrical motor winding. By integrating the design of two power devices with the wire device, the guide wire is capable of rotating in two axial directions, facilitating easy replacement as needed.   This innovative electrical motor winding method is versatile and can accommodate various winding requirements in electrical motor design. Moreover, the motor winding machine incorporates a high-speed vertical movement mechanism, enabling the motor winding mechanism to execute rapid vertical reciprocating motion. This design enhancement facilitates high-speed stator winding, enhancing the efficiency and performance of the motor winding process.     Material Of An Electric Motor Winding Machine   Xingte's motor winding uses common material - enameled wire. Each customer selects the appropriate wire specification for their product. Typically, there is a film layer on the outer surface of the enameled wire that requires polishing. After polishing and winding the wire onto the product, the product becomes conductive.   The enameled wire range for motor winding machines is 0.15 mm to 1.6 mm.   Calculation Of An Electric Motor Winding Machine   Following winding, a person checks its ohm using an ohm meter. By connecting the positive and negative terminals to measure the product's ohm, the motor's resistance is determined. In addition to checking the ohm, the person also inspects the wire for any damage. If the resistance and outward appearance are satisfactory, it indicates that the sample is acceptable.   Functions Of An Electric Motor Winding Machine   The primary function of a motor winding machine is, as expected, winding. Winding involves the process of coiling wires to be utilized for specific parts or purposes in larger equipment such as a car engine. Modern motor winding machines can wind coils at speeds ranging from 10 to 3000 RPM. Selecting the appropriate motor winding machine is crucial for your business operations. Apart from the main function, there are auxiliary functions to consider, including: - Electrical tensioner - Servo tensioner   Stator vs. Rotor of a Motor Winding Machine The motor consists of a stator and rotor. Typically, both the stator and rotor require winding with copper wire before being assembled with bearings, frames, and lead wires into a single motor. Regarding winding, Teeming's motor winding machine can wind both the stator and rotor. Each customer's motor may have a different number of poles, such as 4 poles or 6 poles. Teeming will design suitable motor winding tools for the specific winding requirements. The stator's function in the motor is to provide 3-phase power to the rotor, enabling the rotor to rotate using this power.   Different Types of Features of an Electric Motor Winding Machine Electric motor winding machines can offer various features, often depending on the specific type of machine chosen for your business operations.     Wire Break Alarm and Machine Safety Features   Many winding machines are equipped with various types of tensioners, including:   - Spring servo tensioner - Simple servo tensioner - Pneumatic servo tensioner   These tensioners can be connected to the winder. In the event of a wire break, the machine will sound an alarm, allowing the user to quickly identify which spindle's wire has broken. The tensioner values can also be set using Teeming's winding program.   In addition to the wire break alarm, Teeming's machine is equipped with cylinders and sensors. The program can detect if a cylinder is not moving or if the machine has stopped due to a sensor failure. This feature enhances safety and efficiency in the operation of the winding machine.     Xingte Motor Winding Machine: Types and Benefits   With over 30 years of experience, Teeming Machinery offers automated core solutions essential for various production lines. The motor winding machines provided are reliable and proven to meet businesses' requirements. The company began producing winding machines in 2007, and their machines have received multiple awards, such as the Taiwan Excellence Award for the Needle Winder in 2015. Teeming Machinery is dedicated to continuous product improvement to ensure businesses can order top-quality winding machines for their production lines.   Teeming Machinery offers three main types of motor winding machines with customizable variations to suit different business needs. The choice of machine type depends on the material being wound, output requirements, and production specifications.   The motor winding machines from Teeming Machinery offer several benefits, including precise coil wire positioning. This feature enables the machine to operate at high speeds, meeting the rapid production standards required by businesses. The machines also provide high-speed needle winding capabilities to enhance efficiency standards. Similar to their auto winding machines, the jig on these machines can be easily adjusted and changed as needed.   If you need more information about Teeming's motor winding machines or wish to discuss your specific requirements, feel free to contact them for further assistance. They are dedicated to helping you find the best machine to meet your business needs.     Electric Motor Winding Machine FAQs   1. **How Many Different Types Of Motor Winding Machines Are There?** At Teeming, various motor winding machines are available, including those capable of winding multiple metal coils simultaneously. Some of the options include the multi-spindle motor winding machine, rotor motor winding machine, and flyer motor winding machine, each with different variations.   2. **Why Are Motor Winding Machines Necessary?** Motor winding machines are essential for removing various faults that can occur in the production line. They ensure that efficiency standards are met during the production of metal coils, leading to increased production levels and significant reduction in labor costs. These machines also enhance product stability, minimizing downtime issues.   3. **How To Choose The Right Motor Winding Machine?** When selecting a motor winding machine, consider your productivity requirements and whether you aim to benefit from automated processes. Understanding your production needs and preferences will help you choose the most suitable machine for your business.  

An electric motor is a machine that converts electrical energy into mechanical energy. It operates based on the principle of interaction between electrical current and magnetic fields within a wire winding. The rotation of the motor shaft generates a force.     Electric motors can be powered by either direct current (DC) or alternating current (AC) sources. DC sources typically consist of batteries, while AC sources include inverters, grids, and generators. Unlike motors, generators convert mechanical energy into electrical energy. The construction of an electric motor involves components such as the rotor, air gap, stator winding systems, coils, and commutator.   The characteristics of electric motors can vary based on factors such as the type of energy source, construction, motion output type, and intended applications. This article aims to explore the nature and calculation of motor winding.   When an electric current flows through an electric motor, it interacts with a magnet, causing the motor to rotate. The motor coil plays a significant role in enabling this rotation. So, one might wonder, what exactly is motor winding? In simple terms, motor windings involve wires that are wrapped around a flexible iron magnetic core, forming magnetic pole shapes and reinforced by the flow of current.   There are two fundamental configurations of magnet field poles in electric motors: salient poles and non-salient poles. Salient pole machines achieve the growth of magnetic field poles by wrapping a coil around the pole face. On the other hand, non-salient pole machines distribute the winding among polar slots.   A shaded pole motor is a specific type of motor in which the winding is positioned around a particular section of the magnetic pole. This type of motor offers advantages in terms of simplicity and cost-effectiveness.   Electric motor winding is crucial to understand as it plays a key role in determining the performance and efficiency of the motor. By exploring different winding configurations and arrangements, engineers can design motors that meet specific requirements and applications.   In summary, electric motors can be driven by either DC or AC sources, and their construction involves various components including the rotor, air gap, stator winding systems, coils, and commutator. They can be characterized by factors such as energy source type, construction, motion output type, and applications. Motor winding refers to the wires wrapped around a flexible iron magnetic core to create magnetic pole shapes, which is reinforced by the flow of current. The two main configurations are salient poles and non-salient poles. Understanding motor winding is essential for optimizing motor performance and efficiency.     The benefits of using an automatic winding machine   The advent of automatic motor winding machines has contributed to the growth of the coil processing sector by improving efficiency, quality, and reducing non-conforming products. These machines streamline the workflow and offer several advantages over manual winding processes. Here are seven benefits of using an automatic winding machine: Accuracy and Control: The automated winding machine is equipped with a programmable logic controller (PLC) that allows precise adjustment of winding speed, number of windings, time, and facilitates easy debugging. Consistent and Reliable: The machine ensures tight and steady winding of cables and minimizes wire diameter distortion, resulting in consistent and reliable winding quality. Increased Productivity: One person can operate the machine, performing the work equivalent to that of multiple individuals. This significantly enhances productivity and efficiency by handling various input processes and accommodating different winding requirements within the same machine. Continuous Operation: Automated winding machines can operate continuously, leading to improved efficiency and a reduction in business costs. Energy Savings: Fully automated winding machines are designed to be energy-efficient, contributing to energy savings in the overall process. Ease of Use: With basic instructions, workshop employees can easily operate the machine, making the winding process more user-friendly and humane. Versatility: Automated winding machines offer the capability to handle a wide range of different winding specifications, allowing for greater flexibility in meeting diverse customer requirements. The development trend in winding machines is driven by the need for increased work efficiency and the growing demands of the coil industry. This entails making the machines more automated, intelligent, user-friendly, adaptable, and providing various automatic winding options. As the industry expands, the development of more efficient, energy-saving, and multifunctional equipment becomes essential to meet these evolving demands.   What Is a Motor Winding?   Motor winding refers to the arrangement of wires within an electric motor that create magnetic fields and facilitate the conversion of electrical energy into mechanical energy. There are two main categories of motor winding: stator winding and rotor winding.     Stator winding machine parts:   Stator winding is located in the slots of the stator core and is responsible for generating a rotating magnetic field in three-phase motors. It is supplied with three-phase AC power. The specific configuration of the stator winding, whether star or delta, depends on the type of starting technique employed. In a star configuration, the ends of the stator windings are connected to a common point, while in a delta connection, they form a closed loop. In some cases, the stator winding of a three-phase induction motor with slip rings can be connected in a star or delta manner using resistors. The stator winding's interaction with the AC power input produces the rotating magnetic field (RMF) that drives the motor's rotation.   What are the rotor windings for wound rotor motors?   Rotor winding, on the other hand, is located in the rotor component of the motor. The rotor winding is energized by a DC power supply. There are two main types of rotor windings: the wound type and the squirrel cage type. The wound rotor features coils or windings connected to external terminals, allowing for more control over the motor's operation. The squirrel cage rotor, which is more commonly used, consists of conductive bars or "cage" embedded in the rotor core. The design of the conductive bars allows for the induction of currents due to changes in the magnetic field produced by the stator winding. This induction creates a torque that drives the rotation of the motor.   In summary, motor winding involves the arrangement of wires in an electric motor to generate magnetic fields essential for converting electrical energy into mechanical energy. Stator winding produces a rotating magnetic field, while rotor winding interacts with the changes in magnetic fields to induce torque and initiate rotation. Understanding the different types and configurations of motor winding is crucial for designing and operating electric motors efficiently.   What is armature winding?   Armature winding is a key element in electrical machines, with lap winding and wave winding being the two main types.   In lap winding, connections are made in a specific manner, with the same number of brushes as adjacent lanes. Lap winding is commonly used in both high- and low-tension machinery and comes in simplex, duplex, and triplex forms.   Wave winding, on the other hand, features parallel positive and negative brush lines. It allows for connections through two parallel lanes in a machinery pole, with the number of parallel paths corresponding to the number of ports used in high and low-current machines.     What is the automatic motor winding machine and how does a winding machine work?   An automatic motor winding machine is a device that wraps cords, film, tape, or ribbon-like materials onto a spool or battery. This technology has evolved significantly from manual weaving machines used for centuries. Mechanized winding methods became essential during the industrial revolution, especially for coiling valuable materials like copper wire. Advancements in winding technology have revolutionized various production fields, enabling automatic winding machines to perform functions that were previously impossible.    

When selecting a flat wire winding machine for a specific operation, several key factors should be taken into consideration to ensure that the machine meets the operational requirements effectively. These factors include: Wire Size and Material: The machine should be capable of handling the specific dimensions and material of the flat wire needed for the intended application. Coil Dimensions: Consider the range of coil sizes and shapes required for the operation, as well as the flexibility of the machine to accommodate various coil specifications. Production Volume: Determine the required production rate and capacity of the machine to ensure it aligns with the operational demand, whether it is for low-volume custom production or high-volume mass production. Precision and Tolerance: Evaluate the machine's ability to produce coils with precise winding patterns and tight tolerances, especially if the application demands high precision. Automation Level: Depending on the scale of operation and the need for process efficiency, consider whether a manual, semi-automated, or fully automated flat wire winding machine is suitable. Tooling Flexibility: Assess the machine's capability to accommodate different tooling and winding configurations, especially if the operation involves diverse coil designs. Control System: The control system, including features such as servo motors and software capabilities, should be evaluated for its precision, reliability, and ease of programming. Maintenance and Support: Consider the availability of technical support, maintenance requirements, and the reputation of the manufacturer for after-sales service and spare parts availability. Footprint and Integration: Determine the space available for the machine and its compatibility with existing production lines or the potential for integration into the operational setup. Cost and ROI: Assess the overall cost of the machine, including initial investment, operational costs, and the potential return on investment based on the operational efficiency and product quality. ​By carefully considering these factors, businesses can select a flat wire winding machine that best aligns with the specific operational requirements, ultimately contributing to efficient production processes and high-quality coil manufacturing.

Basic information about XINGTE   Experience XINGTE was established in 2007, with more than 17 years R & D experience in the coil winding area Plant Size XINGTE is headquartered in Shenzhen, with a factory area of more than 30,000 square meters, which can ensure our Strong productivity Service XINGTE has more than 230 technical service and after-sales staff, worldwide service points worry-free after-sales service Patents & certificates XINGTE obtained 120+ Patents and related certificates Production Capacity XINGTE has more than 600 experienced employees, which can guarantee our Production capacity and fast delivery Technology XINGTE has more than 130 experienced engineers, which can ensure our strong R & D ability, also can guarantee our customization capability Xingte Product Range 1, Motor stator, rotor, and other related coil winding machine 2, Transformer-related product coil winding machine 3, voice coil-related product winding machine 4, inductor coil winding machine and 5, customized fully automatic line for the motor, speaker, transformer production line

  The winding machine we are talking about here is a device used to wind self-adhesive wire. If you want to improve production efficiency, you must ensure that the winding machine can operate stably. In addition to the factors of the equipment itself, there are also factors that can affect the winding. Machine stability?   1. Ambient temperature. We all know that too high or too low temperatures will have an impact on electronic products, and winding machines are no exception. Therefore, for some precision coil winding machines, it is necessary to equip the factory with auxiliary temperature control equipment to maintain the temperature.   2. Environmental humidity. The winding machine is composed of integrated circuits with many electronic components, and its insulation performance is closely related to the ambient humidity. Excessive humidity can easily cause the circuit board to short-circuit and burn out. Too little humidity can easily generate static electricity, which can also break down some electronic components. Therefore, the humidity must also be maintained within a certain range.   3. Ground factors. At the beginning of construction of many factories, the ground has not been leveled, which will lead to inconsistent stress levels at the four corners of the machine. The machine will vibrate when it is running, affecting the accuracy. In addition, if there are large equipment running nearby, Large vibrations may be generated and transmitted through the ground, which may also cause vibration of the winding equipment, resulting in a decrease in accuracy.   4. The power supply system is unstable, the power supply voltage fluctuates greatly, and power outages are easy to occur. With the rapid development of industry and life, the demand for power supply is increasing. Especially in summer, the demand for industrial electricity and residential electricity continues to rise, exceeding the power supply. The load on the system causes voltage instability and sudden power outages, resulting in frequent system restarts.   5. Operator. The operator's proficiency in operating the winding machine will also affect the stability of the winding machine. Operators who use winding machines need to receive professional training, know the correct operating methods, and operate according to standard operating methods.   Factors that affect the stability of the winding machine include temperature, temperature, ground, air, power supply, space, operator, etc. Therefore, we must strictly follow the operation manual when operating the winding machine. The equipment we develop and produce has the characteristics of high precision, accurate wiring, settable lead length, and good equipment compatibility.

No matter which motor manufacturer it is, it is impossible to produce only one type of motor. There are multiple series and multiple types of motor products. For example, a series of products has stack thickness, outer diameter, wire diameter, and groove filling. The rates are different, and there are also some differences in other parameters. So is there a universal automatic winding machine? It can be adapted to various types of products through debugging.     Brushless motor winding machine   In theory, there is, and in practice, most manufacturers have general-purpose machines, such as needle-type winding machines, which often wind motor products of various sizes. Some are used in home appliances, and some are used in transportation. Products with widely different outer diameters can not only use the same machine, but can also use a set of molds. They only need to be modified in the program.   Of course, if some winding requirements are different, then one set of molds cannot be shared, and different molds need to be made according to different models.   Relatively speaking, the universal winding machine has a wide range of applicability. If it is a few large-volume products, the mold cost can basically be ignored. But if you are rushing goods, one machine is definitely not enough. At present, our single-station winding machine has a wide range of applicability. Of course, with more stations, the investment will be slightly larger. There will also be fewer applicable product models.   This is due to the structural characteristics of the motor winding machine. The needle mouth type winding machine arranges and winds the wire through the needle mouth. The needle mouth is controlled by three motors and moves on three axes, which is what we usually The X/Y/Z axis can theoretically reach any point within a certain space, so the difficulty of the needle-type winding machine lies in programming and debugging. Debugging a product may be divided into many segments of motion. The various moving parts work together. Brushless motor winding machine   Generally speaking, a brushless motor winding machine can wind multiple models of stator products. It mainly depends on whether the product difference is big. Generally, you only need to change the mold. For example, Xingte's winding machine is very The special stator core winding solution is customized, the fixture production is standardized, and the changeover is simple and fast. It is an indispensable equipment for the standardized production of motors.