Hardware Tools Metal Powder Injection Molding Parts

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Hardware Tools Metal Powder Injection Molding Parts

Introduction of MIM hardware tool parts

Hardware tools metal powder injection molding parts
Item	Material	Production Process		Sintering Temperature		Mold	Custom
Hardware tools	440c	Metal Injection Molding		1550℃		To be customized	Yes
Chemical Composition	Steel: 440C C: 1.00 Cr: 17.50 Co: - N: - Mn: 0.50 Mo: 0.50 Ni: - P: 0.04 Si: 0.30 S: 0.03 W: - V: - HRC: 58-60
Available Materials	Low carbon stainless steel, titanium alloy (Ti, TC4), copper alloy, tungsten alloy, cemented carbide, high temperature alloy (718, 713)
Finish	Dimensional Accuracy		Product Density		Appearance Treatment			Appropriate Weight
Roughness 1～5μm	（±0.1%～±0.5%）		92～95%		Mirror Reflection			0.03g～400g）

Qinhuangdao Zhongwei Precision Machinery Co., Ltd. is a joint-stock enterprise specializing in the research and development, production and sales of metal injection molding products. The company has senior technical personnel in the industry and has passed ISO9001-2000 certification. With strong technical background, advanced production equipment, strict quality control system and perfect enterprise operation mode, the company has grown into the most powerful professional metal injection molding (MIM) manufacturer.

The company has an annual production capacity of 100 tons of MIM products, and provides customers with high-quality services from product design, development to production supporting the whole process. The company's product series includes small and complex three-dimensional parts such as iron-based, copper-based, nickel-based, stainless steel, cemented carbide, tungsten alloy, and Kovar alloy, which have been widely used in electronic communications, automobiles and motorcycles, medical equipment, aviation Aerospace, military, hardware, machinery manufacturing and household appliances and other industries.

MIM Process

Metal powder injection molding (MIM) process is a new manufacturing process technology that combines traditional powder metallurgy process, powder ceramic process and plastic injection molding process. This process technology is suitable for mass production of small, precise, complex three-dimensional shapes and metal and ceramic parts with special performance requirements. The basic process of the process is: uniformly mix fine metal or ceramic powder with organic binder to form a rheological substance, use an advanced injection machine to inject into the mold cavity with the shape of the part, form a blank, and then remove the bond It is sintered and sintered to make it highly densified into a product, and it can also be post-treated if necessary.

●MIM process features

1. Hardware tools metal powder injection molding parts have high degree of freedom in geometric shape, uniform density of each part, and high dimensional accuracy. It is suitable for manufacturing small parts (0.2g-200g) with complex geometric shapes, precision and special requirements.

2. The alloying has good flexibility, which can reduce the manufacturing cost for materials that are too hard, too brittle, and difficult to cut, or parts with segregation or pollution when casting raw materials.

3. The product has stable quality and reliable performance. The relative density of the product can reach 95%-98%. It can be processed by carburizing, quenching and tempering.

4. The typical tolerance of machined parts is ±0.06mm/mm; within batch tolerance can reach ±0.04mm/mm; secondary processing can reach ±0.02mm/mm

5. The manufacturing process is simple, the production efficiency is high, and it is easy to realize large-scale and large-scale production.

●Suitable materials for metal powder injection molding

There are mainly Fe alloy, Fe-Ni alloy, stainless steel, Kovar alloy, W alloy, titanium alloy. Stellite alloy, Si-Fe alloy, Hastelloy alloy, cemented carbide, permanent magnet alloy and ceramic materials such as silicon oxide and zirconium oxide.

●Application areas of metal injection molding

1. Computer and its auxiliary facilities: such as printer parts, magnetic heads, magnetic cores, striker pins, drive parts

2. Tools: such as drill bits, cutter heads, shot peening nozzles, gun drills, spiral milling cutters, punches, sockets, wrenches, electrical tools, hand tools, various lock parts, etc.

3. Household appliances: such as watch cases, watch chains, electric toothbrushes, scissors, fans, golf heads, jewelry links, ballpoint pen clamps, various tungsten alloy fish sinkers and metal structural parts, cameras and other parts

4. Parts for medical devices: such as orthodontic frames, scissors, tweezers,

5. Military parts: missile tail, gun parts, warheads, medicine cover, fuze parts

6. Electrical parts: micro motors, electronic parts, sensor parts

7. Mechanical parts: such as cotton loosening machine, textile machine, crimping machine, office equipment, etc.

8. Automobile and marine parts: such as clutch inner ring, rocker arm insert, fork sleeve, distributor sleeve, valve guide, etc.

Our Service

Pre-sale

Evaluate according to drawings or products, calculate the price, and submit it to the buyer for confirmation

On sale

The production process of all products is supported by the production system and delivered according to the mutually agreed time. (If the size of the drawing needs to be changed in the middle, the buyer is responsible for the inconsistency with the original drawing. If we fail to meet customer 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.

(Problem solving) If there is a second or third revision in the production process, we will reply within 1 hour at the earliest, and we will solve customer problems within 8 hours at the latest depending on the situation of products that need to be evaluated.

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
Port	It is 200 kilometers away from Tianjin Port, and goods can arrive at the port within 24 hours.

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.