Friction Material

Product introduction: chalcocite is lightgray powder,it is made by selected and crushed chalcocite ore, the main ingredients is cuprous sulfide. The density is 8.3-8.9g/cm3, the hardness is 3 ,the melting point is 1030 centigrade and the boiling point is 2310 centigrade. Chalcocite used for friction materials to adjust the high temperature friction properties and wear resistance, it suitable for disc brake pads and drum brake pads. According to the requirements of the performance,the recommended regular consumption is between 2% and 8%. Property: density: 5.4-5.8g/cm3 copper content:18%-20% moisture:2%max screen analysis: +S 100 0 -S 180 90%max grade:200mesh,325mesh sieving rate: 97%

Chromite is lack or brown, The main ingredient of chromite FeOr2O3. It is shaft and granular crystal system. The hardness is 5.5 and density is 4.3 g/cm3. Because melting point of chrome oxide is 1900?,so can adjust high-temperature friction coefficient or decrease high temperature heat recession , clean the friction couple in the high temperature to increase the efficiency of the brake. Chromite can applied in brake pad drum brake or clutch.The recommended regular consumption is 2?8% density: 4.3-4.6/cm3 chrome oxide content: =30% screen analysis: +S 200

Product description: Lead zinc ore is gray and black powder, and is made by selected and crushed sphalerite and galena sulfide ore.The mohs hardness is 3-5.5, the density is 4.5- 5.0 g/cm3.For the different melting point of sulfide, lead zinc ore is used in friction material for adjusting high-temperature, improving friction coefficient and reducing the dosage of adhesive.It is specially suitable for rake pad drum brake or clutch.The recommended regular consumption rate is about 2-8% according to the required function.

Product description, Product introduction: Diatomite is a kind of biogenic silicastone, It is mainly composed of the remains of ancient diatom. Diatomite mineral contains opal, and mixed with the monomer of quartz grain impurities, the color can be white, yellow , green etc.. Diatomite is a kind of friction materials,it can improve the process performance of friction material, and can make the products have stable friction performance, prolong the service life, reduce the cost. Diatomite can be applied in Brake pad Drum brake or clutch. According to the performance requirement,The recommended regular consumption of Diatomite is from 2% to 8%. The character of Diatomite: The main chemical composition of Diatomite is SiO2,The  chemical formula is SiO2NH2O,and the mineral composition are opal and its variants. Except SiO2, Diatomite also contains a small amount of impurities such as Fe, A1, Ca, Mg, K, Na etc.. Diatomite often accompanied by various kinds of clay, quartz and dolomite, etc.. Property: Si02: 75% min A1203: 4% max Fe: 0.05% max L.O.I: 6% max

Product description, Product introduction: Quartz powder is white, it is made by grinding crushed quartz ore, and the main ingredient is SiO2 The Molecular weight of quartz is 70, mohs hardness is 7, and density is 2.65 g/cm3, melting point 1730�??. Quartz is used for friction materials in order to improve the friction coefficient and brake efficiency, reduce cost. Quartz is applicable to car disc brake, drum brake pads, clutch and wet friction material. According to the performance requirement,The recommended regular consumption of quartz is from 2% to 8%. The character of Feldspar: Quartz is mainly refers to quartz sandstone, quartzite and vein quartz. Quartz crisp, no cleavage, conchoidal fracture, oily luster, milky white or colored translucent or other colors.Quartz chemical stability, resistance to high temperature, acid, slightly soluble in potassium hydroxide solution. Quartz belongs to the high hardness of the filler, ordinary sand is quartzite. friction industry used quartz powder is above 200 mesh, although it increase the friction effect, it also easy to cause obvious braking noise and scratches dual surface, therefore the quartz usage in the friction material industry is not much. Property: A1203: 0.19% Si02: 99.5% min. Fe203: 0.02% max. CaO: 0.11% MgO: 0.08% grade:200mesh,325mesh sieving rate: 97%

Product description, Product introduction: Dolomite is White powder, the main ingredient is calcium carbonate and magnesium carbonate.The physical properties of dolomite is that Moh�??s Scale Hardness is from 4.5 to 4.0,density is from 2.8 g/cm3 to 2.9 g/cm3. Dolomite is decomposed into carbon dioxide calcium oxide and magnesium oxide when tempreture is between 700 and 900 degree centigrade. Dolomite is made by crushed Dolomite ore.It is used as friction material to for stable friction coefficient,and can improve process performance, improve the wear resistance of friction material, and reduce the cost.Dolomite used in Brake pad Drum brake or clutch.The recommended regular consumption of Diatomite is unlimited.. The character of Dolomite: Dolomite, also known as bitter ash stone, it is the double salts of calcium carbonate (CaCO3) and magnesium carbonate (MgCO3), The theoretical ratio is: MgC03 accounted for 45.65%, and MgCO3 accounted for 4.35%. Appearance of dolomite is yellow white, Pink.The kind is of shiny crystalline white clouds and crystalline dolomite two absorption. Dolomite has good fireproof , heat insulation and waterproof performance Dolomite can be used as friction material to reduce the cost.with application in the brake pads, the function is to improve the stability of the friction coefficient. Property: A1203: 0.04% SiO2: 1.10% Fe203: 0.23% CaO: 33.96% MgO: 22% min grade:200mesh,325mesh sieving rate: 97%

Product description, Product introduction: Zeolite is a kind of new material, by aqueous alkali or alkaline earth metal aluminum silicate minerals Main Chemical composition of Zeolite are Si02,A1203, H2O and alkaline earth metals, Si02 and A1203 content is about 80%.Physical properties of zeolite: Moh�??s Scale Hardness is from 3.5 to 5.5,density is from 2.1 g/cm3 to 2.5 g/cm3.Zeolite Has good performance of adsorption, cation exchange properties, catalytic properties, heat resistance, acid etc.Zeolite is used as friction material to for stable friction coefficient,and can reduce the cost. It can be used in brake pad drum brake or clutch. The recommended regular consumption of zeolite is from 2% to 8%. The character of Zeolite: Zeolite is the floorboard of the family of zeolite minerals, a frame structure, is a kind of aqueous alkali or alkaline earth metal aluminum silicate minerals. At present our country found more than 10 kinds of natural zeolite,such as clinoptilolite ,mordenite zeolite, alkali ling zeolite and calcium cross,but widely used only clinoptilolite and mordenite zeolite.Zeolite has many function and usage. Zeolite density is small, high foam, good activity, zeolite water of crystallization and the general structure of water (OH) is different, because it as water molecules, the zeolite water under a certain temperature heating, the lattice structure are not destroyed after dehydration, the location of the original molecules there are still gaps, form a lattice structure, sponge with water and gas suction space feature, when the temperature rises, the zeolite cavity that the larger molecules to enter, cooled molecules trapped within the cavity and keep for a long time, until the heat release. The characteristics of zeolite was known as the "boiling". Foreign patent added zeolite in friction material to absorb gaseous and liquid molecules emitted by thermal decomposition to achieve the purpose of reducing thermal annealing Property: SiO2: 65%min A1203: 18% -22% Zeolite content: 60% min grade: 200mesh,325mesh sieving rate: 97%

Product description, Product introduction: Barite powder is grey ink or white powder, it is made bybarite ore,the main composition is BaS04. physical properties of barite: Mohs Scale Hardness is from 2.5 to 4.5,density is from 4.3 g/cm3 to 4.5 g/cm3,and the melting point is 1580 degree centigrade . whenBarite is used in friction materials ,it can improve performance and reduce the cost,it is suitable for disc brake pads,drum brake pads and clutch etc.. The recommended regular consumption of barite is from 2% to 8%. The character of Feldspar: Barite is the most widely used friction material, it can keep stable friction coefficient and small particles. Barite especially can form a stable boundary friction layer at high temperatures to prevent the dual material surface scratch and to make the dual surface grinding more bright and clean. Used in the friction material,with dispersity barite is easy to adsorption with all kinds of resin, so as to improve high temperature resistant andwear resistance of the adhesive. With unique physical and chemical properties,Barite is widely used in all industries,especially in the oil industry,chemical industry,friction industry and abrasive industry etc. Property: BaS04: 92% min CaO: 2% max SiO2: 1.5% max PH value: 7.2max density: 2.5-3.5 whiteness: 92min moisture: 0.2% max grade:200mesh,325mesh sieving rate: 97%

Product description, Product introduction: Kaolin is White or light yellow powder, the main components is aluminum silicate (Al2O3,2SiO2,2H2O) Physical properties of Kaolin: Mohs Scale Hardness is from 2 to 2.5,density is 2.6 g/cm3 ,and refractoriness is from 1750 to 1790 degree centigrade.Used as friction materials, Kaolin can improve the process performance of friction materials, reduce the shrinkage rate of products , and improve the friction performance of friction materials in 400-600 , reduce the cost. Kaolin is made by crushed kaolin ore .Kaolin is used in Brake pad Drum brake or clutch, The recommended regular consumption of kaolin is from 2% to 8%. The character of Kaolin: Kaolin is named by the kaolin village in Jingdezhen in China where it was found near China, it is clay or clay rock which is mainly of kaolin clay mineral Kaolinite radial clay minerals including kaolinite, halloysite, di stone, Pearl chinastone, water mica, etc. Kaolinite is of soft and hard kinds.Kaolin has many excellent properties. Such as: water absorption, plasticity, suspended, strong cohesive force, high refractoriness, good insulation and chemical stability, and good sintering performance.Add some kaolin in the composition of friction materials, can reduce the brake noise and reduce the heat recession. Property: A1203: 28% min SiO2: 52.4% min Fe203: 5.18% TiO2: 0.96% K2O: 9.18% Na2O: 9.71% grade: 200mesh,325mesh sieving rate: 97%