China Yuchai International Co., Ltd. stated on December 12, 2012 that its natural gas vehicle engine produced by its subsidiary Guangxi Yuchai Machinery Co., Ltd. has been occupied by the Shaanxi market since it was listed in early 2012. In many parts of Shaanxi, such as Yulin, Yan'an, Luanchuan and Hanzhong, the natural gas automobile engine is popular with the government, travel agencies and schools.
In February 2012, Xi'an Bus Company launched the first batch of buses equipped with this engine. Many other passenger transport companies in Shaanxi province ordered the natural gas engine at the first time. Guangxi Yuchai Machinery Co., Ltd. opened the Shaanxi market through various methods, including active marketing, and publicized its various advantages of the engine: good fuel-saving performance, strong power, and low environmental noise; strengthening communication and exchange with customers, understanding Their needs; providing excellent after-sales service and expanding the sales network of spare parts.
Guangxi Yuchai also has a large share of the natural gas engine market in the country. In 2011, sales of natural gas engines were 13,000 units, compared to 20,000 units in 2012.
The company's engine models include YC4D, YC6B, YC6J, and YC6LandYC6M with power from 140 to 375 horsepower; and YC4G and YC6G from 180 to 260 horsepower. In addition, Dongfeng brand trucks equipped with YC6M and YC6MK natural gas engines have begun to transport coal from Yulin to Xi’an. Guangxi Yuchai's engines can meet the needs of most customers.
Benny Gao, President of China Yuchai Company, stated: "With the nation's energy policy focused on natural gas and rising oil prices, the demand for natural gas engines will increase. Shaanxi is in the center and will affect and promote the surrounding areas. Regional market. We are committed to continuously increase our production capacity. We used to dominate the diesel engine market, but we want to be the leader in the natural gas engine market."
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
4140 steel tube,Round Steel Tubing,Heat Treated Steel Tube,Heat Treated Steel Bar And Tube,S355JR steel tube
SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.sdhighstrengthsteelbolts.com