From June 12 to June 15, 2012, “2012 China Shanghai International Auto Parts, Manufacturing Equipment and After-sales Service Exhibition” was held at Shanghai New International Exhibition Center. Bridgestone unveiled the latest commercial vehicle tire products.

The most notable of these is ECOPIA R102, which will be officially launched in the second half of 2012. It is an environmentally friendly new product for long-distance card and passenger car users. As the first commercial tires launched by the ECOPIA family in China, the launch of the R102 marks the official launch of the "Green Song Partner" brand into the Chinese commercial vehicle sector.

According to reports, this product is equipped with Bridgestone low fuel consumption material design technology, and through the optimization of the carcass design to reduce tire rolling resistance, thereby achieving a substantial increase in fuel efficiency.

For long-distance bus and passenger car users, fuel consumption costs are much higher than other maintenance fees and tire purchase costs. The launch of ECOPIAR102 will greatly ease the huge economic burden of the rising price of oil on the card and bus operators. At the same time, it will also reduce CO2 emissions during tire use, which will benefit the green environment.

Bridgestone said that in order to meet the wider needs of users of small and medium dump trucks, the L300, a versatile and versatile series of its "Guangzhou" truck brand, will also add 825R20 and 900R20 specifications.

As a product for all-wheel medium dump trucks in heavy loads for mixed road conditions, the L370 uses tread rubber with excellent resistance to external damage and a reinforced crown structure, making dump trucks always run on even worse roads. Has excellent service life.

In addition, Bridgestone continues to increase its efforts in the delivery of products for China's commercial vehicles. At present, Bridgestone has launched more than 20 models for China's truck bus tire market. There are more than 20 specifications and a total of nearly 100 products.

Heat Treated Steel Bar And Tube

HEAT TREATED STEEL BAR AND TUBE

Heat treated steel bar is produced by heating and cooling in different temperature based on the steel grades to improve the steel bar mechanical properties or machinability for various industrial applications. Heat treated steel bar includes annealed steel bars, Normalized Steel Bar, quenched and temper qt steel bar.

Annealed Steel Bar has better ductility and lower hardness, which can be easier to be machined. The annealing processing is usually widely used for steel grade with higher carbon content above 0.5%. However, some low carbon steel also requires to do annealing for special usage such as 20CrMnTi gear steel. For some special material such as 20CrMnTi gear steel and GCr15 such bearing steel, spheroidizing annealing is often required.

Normalized steel bar sometime is also one kind of annealing processing. It mainly changes the grain to remove the impurities in steel and improves the strength and hardness. For some hot rolled steel bars, to keep the basic mechanical properties, normalizing is often used.

Quenching and Tempering, abbreviated as Q&T is a king of processing that strengthen or harden steel bars by heating the materials and then cooling in water, oil or other liquid medium, that rapidly the change from austenite to perlite to get the proper properties for various usage. The quenched & tempered steel bar materials are usually with carbon from 0.30% - 0.60%, it is widely used as merchant bars in components of various machines.

Our advantages on producing heat treated steel bars:

1) Big stocks of hot rolled round bars or wire rods as raw materials

2) Wide range of Cold Drawn Steel Bar sizes: from 10mm to 150mm

3) Different cold drawing medias powder or oil to get different surface

4) Straightening machines to get better straightness up to 0.5mm/m

5) Grinding and polishing machines to get better roughness upto 0.4um

6) Heat treating furnaces to adjust the mechanical properties

7) Full sets of testing equipment to test the sizes, mechanical properties and microstructure.

8) Multiple packages to avoid broken packages and anti-rusty

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SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.sdcolddrawnsteelbar.com