TWS Earphone Metal Powder Injection Molding

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TWS Earphone Metal Powder Injection Molding

Name: TWS Earphone Metal Powder Injection Molding Manufacturers Suppliers
Brand: Zhongwei
SKU: 190045327

A jig for improving the sintering deformation of powder injection molding earphone slide rail, comprising a corundum ceramic plate; it is characterized in that, the surface of the corundum ceramic plate is a profiling design.

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Introduction of metal injection molding earphone parts

Metal Injection Molding Headphone Parts
Item	Material	Production Process	Sintering Temperature	Mold	Custom
Headphone Shell	304 stainless steel	Metal Injection Molding	1550℃	To be customized	Yes
Chemical Composition	Chemical Composition:C：≤0.08 ，Si ：≤1.0 　Mn ：≤2.0 ，　Cr ：18.0～20.0 ，Ni ：8.0～10.5，　S ：≤0.03 ，P ：≤0.035 N≤0.1。
Available Materials	Low carbon stainless steel, titanium alloy (Ti, TC4), copper alloy, tungsten alloy, cemented carbide, high temperature alloy (718, 713)

Product Feature

Finish	Dimensional Accuracy	Product Density	Appearance Treatment	Appropriate Weight
Roughness 1～5μm	（±0.1%～±0.5%）	95～100%	Mirror Reflection	0.03g～400g）

Product Description

1. Execution standards: The company strictly implements ISO9001, ISO14001, IATF16949 certifications\products have passed ROHS, FDA EU certification, etc.

2. TWS earphone metal powder injection molding product material standards: ISO, GB, ASTM, SAE, EN, DIN, BS, AMS, JIS, ASME, DMS, TOCT, GB

3. Main processes: metal injection molding MIM, powder metallurgy PM, investment casting, die-casting aluminum,

4. Available materials for powder metallurgy:

Copper alloys, iron bases, titanium alloys, stainless steel bases, aluminum alloys, nickel alloys, cobalt alloys, tungsten alloys, cemented carbides, hydroxy alloys, soft magnetic materials and 3D printing can be customized according to customer requirements.

Process Control

Qinhuangdao Zhongwei Precision Machinery Co., Ltd. designed and produced related fixtures for the problem of sintering deformation of powder injection molding earphone slides, including corundum ceramic plates, corundum ceramic plate surface profiling design, and integrated booster columns on both sides. Through the above method, the powder injection molding earphone slide rail sintering fixture of the present utility model can effectively improve the placement problem of the earphone slide rail and the defects of product deformation, ensure the product shape radian and the shape size accuracy, the fixture processing technology is simple, and it is suitable for mass production , long life, easy storage management and recycling.

1. A jig for improving the sintering deformation of powder injection molding earphone slide rail, comprising a corundum ceramic plate; it is characterized in that, the surface of the corundum ceramic plate is a profiling design.

2 . The jig for improving the sintering deformation of powder injection molding earphone slide rails according to claim 1 , wherein the surface of the corundum ceramic plate is an arc surface, and the shape and size are set in coordination with the shape and radian of the earphone slide rail.

3 . The jig for improving the sintering deformation of powder injection molding earphone slide rails according to claim 1 or 2 , wherein the shape of the corundum ceramic plate is a rectangular parallelepiped.

4. The jig for improving the sintering deformation of powder injection molding earphone slide rails according to claim 3, wherein the outer dimension of the corundum ceramic plate is 96mm × 70mm × 13.5mm.

5 . The jig for improving the sintering deformation of powder injection molding earphone slide rails according to claim 1 or 2 , wherein the two sides of the corundum ceramic plate are provided with integral raised bosses.

Post Casting Process

1. Heat treatment: annealing, carbonization, tempering, quenching, normalizing, surface tempering

2. Processing equipment: CNC, WEDM, lathe, milling machine, drilling machine, grinder, etc.;

3. Surface treatment: powder spraying, chrome plating, painting, sandblasting, nickel plating, galvanizing, blackening, polishing, bluing, etc.

Metal Injection Molding MIM-TWS Headphone Parts

Qinhuangdao Zhongwei Precision Machinery Co., Ltd. customized metal injection molding MIM earphone accessories for Huawei

Headphone manufacturers are using the metal injection molding process to create complex headphone housings that significantly improve the listening experience for users. British headphone manufacturer RHA has launched its flagship T10i headphones, ergonomic, stainless steel driver shell headphones that are ready to be brought to market at scale. The housing consists of two parts injection-molded stainless steel.

RHA says MIM is the only way to achieve the pinna shape of the T10i earphones using durable stainless steel. The T10i is not only designed to be comfortable, but also has unique sonic and airflow characteristics ideal to run the T10i's manual dynamic drive.

After injection molding, parts are solvothermally degreased prior to sintering. The combined shell pieces are hand-finished for a textured, brushed stainless steel look.

RHA headphones retail for around $200, while hi-fi headphones from Japan's Final Audio Design can sell for as much as $2,500. In Final Audio's products, the use of MIM provides the freedom to design and manufacture interiors that have a significant impact on sound quality and control elements such as resonance and airflow.

In 2014, ARCMIM, a FloMet company, won the MPIF award for a set of MIM headset parts designed for US-based Sure Inc.

Our Service

Pre-sale	Evaluate according to drawings or products, calculate the price, and submit it to the buyer for confirmation
On sale	All production links of TWS earphone metal powder injection molding are supported by the production system and delivered according to the mutually agreed time. In order to be responsible for the modification, if we fail to meet the customer's requirements during the modification process, a full refund will be given)
After sales	After handing over the product, we will seal all the buyer's molds for safekeeping.

Why Choose US?

Our R&D team	Zhongwei Precision Co., Ltd. and Central South University have a R&D team of 10 people. They develop more than 400 products each year, which is more than 68% higher than the same industry, and have obtained more than 20 patent certificates.
Our technical team	Zhongwei Precision has 5 professional engineers in the field of metal injection molding, and 15 technicians responsible for workshop management.
Our philosophy on quality management	1. Focus on the customer Organizations depend on customers, so organizations should understand customers' current and future needs in order to meet customer requirements and exceed their expectations. 2. Leadership Organizers unify the purpose, direction and internal environment of the organization and create an environment in which employees can fully participate in the achievement of organizational goals. 80% of quality problems are related to management and 20% are related to employees. 3. Full participation Employees at all levels are the foundation of the organization's survival and development, and only with their full participation can they bring benefits to the organization. Job responsibilities include all staff (from general manager to grassroots staff). 4. Process Approach Manage related resources and activities as a process to achieve desired results more efficiently. Flowchart method. 5. A systematic approach to management Identifying, understanding, and managing a system of interrelated processes against set objectives contributes to the effectiveness and efficiency of an organization. The principle of the hoarding of the wooden bucket. 6. Continuous Improvement It is an eternal development goal of the organization. PDCA cycle. 7. A fact-based approach to decision-making: Logical analysis or judgment of data and information is the basis for effective decision-making. Speak with data and facts. 8. Mutually beneficial supplier relationships Enhance the ability of the organization and its suppliers to create value through mutually beneficial relationships.
Device resources	The company has 10 MIM production lines, CNC and intelligent automated production workshops for production lines, which can guarantee the production of millions of MIM parts per day.
System Certification	ISO9001, ISO14001, IATF16949 certification

Process After Sintering

1. Heat treatment: annealing, carbonization, tempering, quenching, normalizing, surface tempering

2. Processing equipment: CNC, WEDM, lathe, milling machine, drilling machine, grinder, etc.;

3. Surface treatment: anodizing, powder spraying, chrome plating, painting, sandblasting, nickel plating, galvanizing, blackening, polishing, bluing, etc.

Moulds and Inspection Fixtures

1. Mold service life: usually semi-permanent. (except for lost foam)

2. Mold delivery time: 10-25 days, (according to product structure and product size).

3. Tooling and mold maintenance: Zhongwei is responsible for precision parts.

Quality Control

1. Quality control: the defective rate is less than 0.1%.

2. Samples and trial run will be 100% inspected during production and before shipment, sample inspection for mass production according to ISDO standards or customer requirements

3. Testing equipment: flaw detection, spectrum analyzer, golden image analyzer, three-coordinate measuring machine, hardness testing equipment, tensile testing machine;