Mobile Phone Volume Button MIM Parts

Product Introduction

Introduction to Zhongwei Precision
Qinhuangdao Zhongwei Precision Machine Parts Co., Ltd. is a professional industrial manufacturing enterprise engaged in the development and sales of precision mechanical transmission parts and devices, mobile phone hardware accessories, various material hardware and equipment. The company's current customers are concentrated in precision instruments, electronics, electrical appliances, automobiles, motorcycles, bicycles, electric tools, office equipment, communications, instrumentation, toys, medical machinery, paper shredding machinery, packaging machinery, light industrial mechanical and electrical products, etc. , the company has a number of advanced domestic and imported equipment, and new quality testing equipment for mechanical parts products. Sophisticated equipment and advanced technology not only provide a strong guarantee for the manufacture of high-precision, high-quality products and timeliness of supply, but also complete processing supporting equipment can produce a complete set of transmission devices and peripheral parts. The company has a number of technical personnel with rich experience, with a professional attitude and a dedicated spirit, it is committed to the development and production of high-tech, new material factories, new processes, and new products, and provides customers with strong quality tracking and technology Serve. The company conscientiously implements the ISO management concept in the true sense, and has won the trust and support of domestic and foreign customers with professional technology, high-quality product quality and good service. The company's powder metallurgy pressing and metal injection molding products have been used in precision electronic equipment, computers, mobile phones and other emerging industries. A variety of gearboxes, transmission movements, multi-material gears, special-shaped structural parts, etc. are exported to North America, Southeast Asia, Europe, the Middle East and other countries and regions. Qinhuangdao Zhongwei Precision Machine Parts Co., Ltd. specializes in the production of special-shaped structural metal toy gun accessories, electric Valve gear bevel gear, bevel gear, powder metallurgy, gear, electronic hardware accessories, metal injection molding MIM, powder metallurgy filter, structural parts, powder sintered filter, powder sintered filter, stainless steel powder sintered filter element, powder metallurgy filter , mobile phone parts, notebook parts, metal buttons; stainless steel products; automobiles, motorcycles, machine tools, motors, toy gun accessories, medical equipment and other complex special-shaped precision parts and non-standard parts in various machinery, electrical appliances, and electric/pneumatic products ; Precision metal structural parts and hardware accessories for internal use in various industries. Good quality, high precision, price concessions, please call Qiadan.

Metal Injection Molding (MIM) Production Process and Application Summary
The MIM manufacturing process generally includes: mixing and granulation, injection molding, degreasing, sintering and secondary treatment.
(1) Main technical characteristics of MIM process:
1. It is suitable for the forming of various powder materials, and the product has a wide range of applications, and can be used as Mobile phone volume button MIM Parts;
2. The utilization rate of raw materials is high, the degree of production automation is high, and it is suitable for continuous mass production.
3. It can directly form small parts with complex geometric shapes (0.03g～200g);
4. The dimensional accuracy of parts is high (±0.1%～±0.5%), and the surface finish is good (roughness 1～5μm);
5. The relative density of the product is high (95-100%), the structure is uniform, and the performance is excellent;

(2) Several commonly used surface treatment processes for MIM parts
Polishing treatment: use mechanical, chemical or electrochemical action to reduce the surface roughness of the workpiece to obtain a bright and smooth surface.
Electroplating treatment: the process of attaching a layer of metal film to the surface of metal or other material parts by electrolysis. Electroplating can prevent metal oxidation (such as rust), improve wear resistance, electrical conductivity, reflectivity, corrosion resistance (copper sulfate, etc.) and enhance aesthetics.
PVD treatment: the process of transferring atoms or molecules from the source to the surface of the substrate by using physical processes to achieve material transfer. Its function is to spray some particles with special properties (high strength, wear resistance, heat dissipation, corrosion resistance, etc.) on the matrix with lower performance, so that the matrix has better performance.
Blackening treatment: It is a common chemical treatment method to produce an oxide film on the metal surface to isolate the air and achieve the purpose of rust prevention. When the appearance requirements are not high, blackening treatment can be used. The main components of the blackening solution are sodium hydroxide and sodium nitrite.
Phosphating treatment: It is a process in which chemical and electrochemical reactions form a phosphate film. The purpose of phosphating is mainly to:
1) Provide protection to the base metal and prevent the metal from being corroded to a certain extent;
2) It is used as a primer before painting to improve the adhesion and anti-corrosion ability of the paint film layer.
Spraying treatment: through a spray gun or disc atomizer, with the help of pressure or centrifugal force, it is dispersed into uniform and fine mist droplets, and applied to the surface of the object to be coated.

Detection Systems

Metal Injection Molding Process