OEM Factory Auto Parts Wholesale Front Rear Brake Disc Europe Car

Product Description

Raw Material Selection: Copper-based brake pads use copper powder as the main raw material, typically with the addition of additives such as tin, lead, graphite, and molybdenum disulfide. Tin improves the material's strength and hardness; lead improves its frictional properties and machinability; and graphite and molybdenum disulfide are excellent solid lubricants, reducing the coefficient of friction and improving the brake pad's wear resistance.

Powder Mixing Process: Mechanical mixing is used to thoroughly and uniformly mix the various raw material powders. This step is crucial, directly affecting the consistency of the brake pad's final performance. Researchers optimize the powder mixing equipment and process parameters, such as controlling the mixing time and rotation speed, to ensure uniform distribution of each component.

Molding Process: Commonly used molding methods include compression molding and isostatic pressing. Compression molding involves placing the mixed powder into a mold and shaping it under pressure; this method is suitable for producing brake pads with simple shapes and large batches. Isostatic pressing utilizes the property of a liquid medium to uniformly transmit pressure, applying pressure to the powder in all directions, compacting it into shape; this method is more suitable for producing brake pads with complex shapes and high density requirements. Experiments have shown that brake pads prepared by isostatic pressing have a density 5%-10% higher than those prepared by compression molding, thus improving their wear resistance.

Sintering Process: The formed blank is sintered to densify it. The sintering process is generally carried out in a protective atmosphere to prevent metal oxidation. By controlling parameters such as sintering temperature, time, and heating rate, ideal microstructure and properties can be obtained. Research results from Tsinghua University indicate that after optimizing the sintering process, the fluctuation range of the friction coefficient of copper-based brake pads is reduced, and braking stability is significantly improved.

Advantages of Powder Metallurgy in Brake Pads

Excellent Friction Performance: Powder metallurgy brake pads can maintain a relatively stable friction coefficient under different temperature and speed conditions, with the friction coefficient fluctuation controlled within ±0.05, ensuring smooth and reliable braking. Sufficient braking force can be provided during both high-speed driving and emergency braking.

Good Wear Resistance: Due to its special material structure and manufacturing process, powder metallurgy brake pads have excellent wear resistance, a long service life, reduced replacement frequency, and lower maintenance costs.

High Temperature Resistance: During high-speed braking, brake pads generate a large amount of heat. Powder metallurgy materials can withstand instantaneous temperatures of 1000℃ without performance degradation, far exceeding the 600℃ limit of traditional resin-based materials, effectively ensuring the normal operation of the braking system.

High Design Flexibility: By adjusting the composition and ratio of the powder, brake pads with specific performance characteristics can be customized according to different application scenarios and needs, meeting diverse market demands.

Material system/type	core formulation/material examples	key process steps
Semi-metallic brake pads	Iron powder, metal fibers, phenolic resin, graphite	Ingredient mixing → Hot pressing → Heat treatment (drying/curing) → Bonding to steel backing → Post-treatment
Hybrid Fiber Reinforced Ceramic Matrix Brake Pads	Fly ash (ceramic matrix), alumina/zirconia fiber (reinforcement)	Raw material mixing → Cold pressing → Hot pressing curing
Asbestos-free drum brake pads	Aluminum silicate, various fibers, synthetic graphite, liquid phenolic resin	Wet mixing (with liquid resin) → Roll forming → Cutting and shaping → Bonding to brake shoes → Heat treatment → Subsequent processing
Carbon/ceramic composite brake pads	Carbon fiber preform, silicon-containing precursor (e.g., polycarbosilane)	Preparation of carbon fiber preform → Chemical vapor infiltration/deposition → Precursor impregnation and pyrolysis → Repeated impregnation until densification → Machining
Ceramic-based brake pads	Alumina/silica powder, carbon fiber, phenolic resin	Raw material mixing → Dry pressing/cold pressing → Sintering → Performance testing

Main Products

Company Profile

RUICI METAL PRODUCTS (DALIAN) CO., LTD was established in2005 at Dalian (China) as a manufacturer and trading company , and has gained an internationally acknowledged reputation in this segment. We engage in many kinds of metal products,mainly OEM and ODM business model. Our factory produce cast iron casting and CNC machining parts which are used for valve, pump, mineral, construction, agriculture machinery. Meanwhile, we have long term cooperation with a number of skilled sub-factories, engaged in steel, stainless steel, copper, aluminum, zinc products trading business.
Our clients include several world market leaders, medium-sized enterprises, publicly traded companies, and multinational enterprises, for whom RUICI provides a complete procurement service.

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FAQ

1. Who are we?
We are based in Liaoning, China, start from 2005,sell to Western Europe(60.00%), North America(10.00%), Oceania(10.00%), Southeast Asia(10.00%), South Asia(10.00%), There are total about 40 people in our office.
 
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
 
3.What can you buy from us?
Castings, Forgings, sheet metal, CNC Machining, OEM service(rubber and plastic)
 
4.Why should you buy from us not from other suppliers?
Over 20 years export experience on casting and machining business, advanced production(CNC and machining center) and inspection equipments (CMM), fully quality control system(ISO 9001:2008), perfect after-sales service. Main market Germany, Japan, USA.....
 
5.What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,DDP,DDU;
Accepted Payment Currency:USD,EUR,JPY,CNY;
Accepted Payment Type: T/T,L/C,Western Union And More;
Language Spoken:English,Chinese,Japanese And More;