16 drilling holes.
Size: 194.6*177.8*17.6/11.1
Application: Daf
Material: Semi-Metal, Non-asbestos, NAO
Our brake lining materials including all kinds of regular mateiral such as non-asbestos, semi-metal, NAO formula, we also developed new finish brake lining by adding different material element, and we have green, red, Khaki and black particle material that making our products more popular in the market.
For the production of brake lining, we follow the national standard GB12676-99 Technical specification, our regular production procedure as follows: Powder weighing - powder mixing - cold pressing- hot pressing - heat treatment - cutting - grinding sides area - chamfering - grinding inside arc- drilling- painting - mark and lot number. Printing- inspection-packing.
We also have a strict QC system, and according to the new specification GB 5763-2088 National Specification for Automotive brake lining products, our inspection report as below:
1) Friction efficient: 100C-250C: 0.405-0.445 300C: 0.382
2) Wearing rate: 100C-250C: 0.105-0.242 300C: 0.233
3) Hardness: 61-66HRM
We also follow the standard to make sure our product can afford the required impact strength, which is usually between 3.12-3.8DJ/cm2.
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Boiler tubes is a one of seamless pipe. Manufacturing methods is the same as seamless tube, but it has the stringent requirements for manufacture of steel pipes. According to the temperature level,boiler tube is divided into general boiler tubes and high pressure boiler tube.
Production methods:
①general boiler tube temperature is below 350 ℃, using hot-rolled pipe or cold drawn tube manufacture Steel Pipe.
â‘¡ high-pressure boiler tube is used often in conditions of high temperature and high pressure pipe, the effect of high temperature flue gas and water vapor, oxidation and corrosion. Steel pipe with high rupture strength, high resistance to oxygen corrosion and have good organizational stability.
Boiler tubes purposes:
â‘ general boiler tubes is mainly used to manufacture water wall tubes, tubes in boiling water and super heated steam pipe, super heated steam locomotive boiler tubes, large and small smoke pipe and pipe arch brick.
â‘¡ high-pressure boiler tubes are mainly used to manufacture superheater tubes, reheater tubes, air guide tubes, main steam tubes, etc. for high-pressure and ultra-high-pressure boilers
Category:
General boiler tubes and high pressure boiler tube boiler tubes is exposed to high temperature performance. Boiler tubes in general, or high-pressure boiler tubes according to their use can be divided into a variety of steel pipe.
Boiler Tube,Boiler Seamless Tube,High Pressure Boiler Pipe,Boiler Seamless Steel Pipe
Shandong Guanzhou Iron and Steel Group Co., Ltd. , https://www.guanzhouiron.com