According to the latest statistics, according to the type of fuel, in 2008, diesel engines completed 2,333,600 units and 2,397,700 units respectively, an increase of -0.07% and 3.30% year-on-year respectively. From the perspective of the growth rate of production in terms of kilowatts, the growth rate was 2.10% year-on-year, which was higher than the growth rate of 2.17 percentage points as the statistical unit of production. This is consistent with the annual growth rate of heavy-duty diesel vehicles in the overall commercial vehicles reaching 11.81% and several heavy-duty diesel vehicle companies such as CNHTC, Dongfeng Automobile, FAW Group, Shaanxi Automobile Group, Beiqi Foton and Baotou Beiben. Vulgar achievements are inseparable.

Judging from the overall performance of diesel engine companies, of the 25 diesel engine companies included in the statistics in 2008, there were 4 enterprises with a cumulative production of more than 200,000 units (the same level as the previous year), and companies with a cumulative output of more than 100,000 units had 8 Home (almost with the previous year), there are 12 companies (more than one in the previous year) with a cumulative output of more than 50,000 units. From the previous and the second half of the year, the accumulated production volume of 1,134,300 diesel engines in the first half of the year was 295,000 units more than the cumulative production volume of 1,019,300 units in the second half of the year. This difference is more than the output of 95,800 units of the overall diesel engine in December. It is much higher. The ratio of production in the first and second half of the year is 1.29, which is in line with the trend of the entire automotive market.

Judging from the cumulative production volume, Guangxi Yuchai, FAW Group, Anhui Quanchai, Weichai Holdings, Kunming Yunnei, Dongfeng Motor and Dongfeng Chaochai are among the top seven. Among them, the production concentration of the top 5 ranked manufacturers was 63.79%, a decrease of 1.19 percentage points from the previous year; the production concentration of the top 7 ranked manufacturers was 76.40%, a decrease of 0.70 percentage points from the previous year; if China were selected again The statistics of Sinopec and Jiangling Jiangling's statistics show that the top nine companies have a production concentration of 85.61%, a decrease of 0.19 percentage points from the previous year. The above shows that the production concentration of diesel engine companies is still declining, but it has reached 85% or more of the concentration of the top 9 companies, which can represent the scale of the entire industry.

In the specific performance of diesel engine companies, although Guangxi Yuchai's annual production growth rate is only 0.32%, it still holds the top spot with more than 500,000 units of production. Companies such as China National Heavy Duty Truck Group, Weichai Holdings, and Dongfeng Motor advanced their production rankings by 21.03%, 14.75%, and 11.95%, respectively. Although FAW Group's annual growth rate was less than double-digit (7.33%), it was ranked second from the third place in the previous year by virtue of its good performance in the market. It is worth noting that although Anhui Jianghuai Automobile has annual production capacity of only 13,800 units, its annual growth rate is as high as 176.18%; another company's annual growth rate of Shandong Laiwu also reached a high of 40.47%. In addition, because there has been little progress in the development of diesel saloons in China in the past year, FAW-VW's diesel engine production has dropped by 36.64% over the previous year. Other companies with more declines (more than 10,000 units per year), Anhui Quanchai (-15.85%), Kunming Yunnei (-13.36%) and Yangchai (-10.75%), the growth of these companies The decline in the rate is directly related to the medium and light vehicle market, and it is also related to the fact that the sedan diesel engine produced in Kunming Yunnei has not yet opened up the market.

Tungsten Carbide Roll Rings

Tungsten Carbide Roll Rings, also known as hard alloy roller ring, has been widely used in the rolling production of high-speed wire, bar, threaded steel, seamless steel pipes, etc. due to its good wear resistance, high-temperature hardness, heat fatigue resistance, thermal conductivity, and high strength.
The Tungsten Carbide Roll Rings we produce mostly come in two series: WC Co and WC Co Ni Cr, with Co and Co Ni Cr as binders ranging from 6wt% to 30wt%. From a usage perspective, hard alloy rollers have good comprehensive mechanical properties, with a bending strength of over 2200 MPa and an impact toughness of (4-6) × At 10 ^ 6J/m ^ 2, the Rockwell hardness (HRA) can reach 78~90. During the high-speed wire rolling process, the single groove steel passing amount is much higher than that of cold hard cast iron or high-speed steel rollers.

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Luoyang Golden Egret Geotools Co., Ltd , https://www.xtcmetalpowder.com