A variety of alloys consisting of more than two elements are called special brass. For example, high-strength brass is one of the copper alloys composed of aluminum, lead, tin, manganese, nickel, iron and silicon. High-strength brass has strong wear resistance, high strength, high hardness and chemical corrosion resistance. And cutting machine performance is also excellent. High-strength brass is often made into sheets, strips, bars, pipes, casting parts, etc.
The chemical formula of high-strength brass is Zcuzn24Al6Fe4Mn3, which contains about 65% copper and 24% zinc. Aluminum can improve the strength, hardness and corrosion resistance of brass at room temperature. There are three kinds of brass: brass containing less than 35% zinc. The microstructure at room temperature is composed of single phase alpha solid solution, which is called -yellow.
High-strength brass has good plasticity and can withstand cold and hot working, but it is prone to medium-temperature brittleness during forging and other hot working. Its specific temperature range varies with the content of zinc, generally between 200 and 700 degrees Celsius. Therefore, the processing temperature should be higher than 700 C.
High-strength brass is widely used. It has been cast into bearing bushes and village bushes. At present, solid lubricated oil-free bearings (solid lubricated bearings) based on high-strength brass are mainly made in China. They are based on high-strength brass and embedded in orderly cylindrical macromolecule fillers radially as friction materials (generally graphite, molybdenum disulfide, polytetrafluoroethylene, oil and other lubricants). The advantages lie in the complementary advantages of copper alloy and non-metallic friction reducing materials, which not only have high load-carrying capacity, but also break through the limit of oil film grease lubrication for general bearings. Oil-free lubrication is realized. The embedded solid lubrication is easy to form a lubrication film, which greatly improves the friction and wear performance and has high stability, reliability and price ratio. Compared with the composite oil-free bearing, it has the advantages of good machinability, high precision, strong bearing capacity and good wear resistance. The self-lubricating guide plate can be used in many fields, such as excavator, mine scraper, rotary drilling rig, concrete pump truck, rock drilling machine, hoist, port crane, etc., as well as continuous casting machinery for gold treatment machinery, hydraulic machinery, conveyor, rolling mill, bottle blower, injection moulding machine cross-lock differential, tire vulcanizer, Trailer balance beam, etc.
1.Use for high load low speed and self-lub Like dam gate and water gate bushes, hydraulic turbine bushes etc.
2.Use for high temp. Such as iron and steel factory machines and soon.
3.Automobile production, like assembly lines, press lines, conveyor lines and so on
4.Heavy duty machines like steel rolling mills, injection machines, press dies etc.
5.And any others like chemical machines, food processing machines, paper mills, textils machines etc.
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1) We produce parts by ourselves, which makes more competitive price and faster delivery;
2) We provide OEM/ODM service and submit various styles, latest designs to our clients;
3) We have many customers from Southeast Asia, Africa, Middle East, North America, and South America;
4) We have standard testing report from ISO, SGS and GMC;
5) We have great experience on provide high quality service to clients;
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The best quality and faith bring us the good market, such as USA, CANADA, BRAZIL, AUSTRALIA, UK, GERMANY, ITALY, SPAIN, TURKEY, ALGERIA, DUBAI, RUSSIA, UKRAINE, SINGAPORE, MALAYSIA etc. "Made in DUNHUI" in many Countries.
We have a very strict and complete quality control system, which promises that goods we produced are always of the best quality, the enough inspectors to ensure that each product can meet the quality requirements of customers. We do the final inspection in own factory with ISO 9001:2008.
A: Please offer us 2D or 3D drawings (with material, dimensions, tolerance, surface treatment and other technical requirements.), quantity, application or samples.
Absolutely definitely YES! Outperforming the factory original is what we do. We could make parts according to your sample or drawing, and we could offer suggestions on how to design the products to make it stronger!
A: We'll always keep you posted. And strict 100% inspection service before shipment is provided for free.
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