The DuesenbergEight was the first to use the hydraulic brakes on passenger cars. Chrysler's four-wheel hydraulic brakes were introduced in 1924, and American General Motors and Ford Motor Company adopted hydraulic brake technology in 1934 and 1939 respectively. By the 1950s, hydraulic power brakes became a reality. After more than 80 years of development, hydraulic braking technology is the most mature and economical braking technology available today, and it is applied to most of the current passenger vehicles. Vehicle hydraulic brake system can be divided into service brake, auxiliary brake, servo brake, etc. The main brake components include brake pedal mechanism, vacuum booster, brake master cylinder, brake hose, proportional valve, brake and Brake warning lights. In the brake system, the vacuum booster, brake master cylinder and brake are the most important parts. In addition, the ABS has become the standard configuration of electronic brakes. 1. Front wheel disc brake 2, brake master cylinder 3, vacuum booster 4, brake pedal mechanism 5, rear wheel drum brake 6, brake combination valve 7, brake warning light Vacuum booster assembly Nowadays, due to safety and reliability considerations, the vacuum booster often forms a vacuum booster assembly with the brake master cylinder to support the vehicle. From the perspective of more than 20 major domestic vacuum booster assembly enterprises that are counted by the China Association of Automobile Manufacturers every year, along with the development of China’s automobile production since 2000, China’s automobile vacuum booster assembly has also achieved rapid development. From 1,939,900 units in 2000 to 6.5 million units in 2007. According to statistics from the Automobile Industry Association, the average price per vacuum booster assembly in China in 2004 was 270 yuan. In 2004, the output of passenger cars in China was 3.15 million, which roughly calculated the market for vacuum booster assembly in 2004 in China. The demand scale is 860 million yuan. In 2007, the output of passenger cars in China was 6.38 million, but the price of the vacuum booster assembly was reduced to about 250 yuan. Therefore, the market demand for vacuum boosters in 2007 was about 1.6 billion yuan. China's vacuum booster assembly company main supporting vehicle serial number company name major supporting vehicle (machine) type 1 Wanxiang Qianchao all kinds of domestic automobile and export 2 Asia-Pacific electromechanical light, mini-vehicle, bridge car 3 Chongqing Hongyu SC6350, SC7080 [next] Drum brake assembly At present, there are some companies such as Wanxiang Qianchao, Asia Pacific Electromechanical, Chongqing Hongyu, etc. that mainly engage in drum brake assembly in China. In the first eight years of 2004, the production concentration of eight companies reached 85.4%. With the development of automotive disc brakes in recent years, hydraulic drum brakes are currently only used in some relatively low-end economic cars. According to the latest statistics from the HC Automotive Market Research Institute, from January to July 2008, only 20% of drum brakes for brakes in passenger vehicles in China were occupied, and drum brakes have now completely withdrawn from front-wheel braking. At present, drum brakes only occupy a large proportion in commercial vehicles, and they use pneumatic drum brake systems. China's drum brake company main supporting vehicle serial number company name main supporting vehicle (machine) type 1 Wanxiang Qianchao all kinds of domestic automobile and export 2 Asia Pacific electromechanical light, mini vehicle, bridge car 3 Chongqing Hongyu SC6350, SC7080 At present, the price of hydraulic drum brakes in China is around RMB 100. According to the estimate of RMB 6.38 million for passenger cars in 2007 and 20% for drum brakes, the market demand for hydraulic drum brakes for passenger cars in 2007 is RMB 260 million. about. [next] Disc brake assembly Since 2000, the market demand for disc brakes in China has grown very rapidly. According to statistics from the China Association of Automobile Manufacturers, the output of disc brakes in our country was only 576,800 sets in 2000. By 2004, it had rapidly increased to 4,768,200 sets, an increase of more than 7 times. The average annual growth rate was as high as 68.9%. To 10 million sets. Over the past five years, the application of disc brakes in our country has grown very rapidly. Domestic companies engaged in disc brakes have also gradually increased in recent years. At present, major manufacturers include Asia Pacific Electromechanical, Chongqing Hongyu, Wanxiang Qianchao, and Zhejiang Wanan. Apac Electromechanical has always been the largest company in the production of disc brakes in China. China's Disc Brake Enterprises Major Vehicle Models No. Name of the Company Main Supporting Vehicle (Machine) Type 1 Asia-Pacific Mechanical & Electrical Light, Micro-vehicle, Bridge Car 2 Hongyu Precision SC6350, SC7080 Anti-lock braking system (ABS) The automobile anti-lock braking system (ABS) is one of the relatively rapidly developing electronic braking systems in China in recent years. ABS is divided into pneumatic ABS and hydraulic ABS. Pneumatic ABS is mainly applicable to commercial vehicles with air braking, and hydraulic ABS is mainly used. Suitable for hydraulic braking passenger cars. At present, there are more than 20 Chinese and foreign companies engaged in ABS R&D and production. Pneumatic ABS is currently being produced in domestic companies such as WABCO, Guangzhou Keyi, Dongfeng Brake, Chongqing Junon and Zhejiang Wanan. Because people do not have a good understanding of ABS and most manufacturers are not very active in promoting the installation of ABS, the installation rate of China's pneumatic ABS is less than 20%. There should be a relatively large development prospect, and pneumatic ABS is a relatively high level of domestically produced electronics. Braking product. The supporting of hydraulic ABS in China is mainly in the passenger car market, and the supporting rate is quite high. However, the hydraulic ABS market supported by passenger vehicles in China is basically monopolized by foreign-funded enterprises.
Warp knitting machines are complex pieces of equipment that require a variety of elements and spares to operate effectively. Some common elements and spares include:
Warp Knitting Elements,Warp Knitting Element,Slider Needle For Machines,Knitting Machine Pile Sinker suzhou cotex international Co.,Ltd , https://www.macanol.com
4 Henan Wanxiang SC1010, BJ1040, EQ1090
5 Anhui Kangda HFC1060, HFC1040, etc. 6 Changchun FAW four-ring chassis CA trucks 7 Guilin Wanxiang Qianchao LZW, LZT, LZ, exports, etc. 8 Wuxi Jinghua BJ1040, EQ1030, SM1040, YZK1020
9 Jiangsu Hengli CA, EQ, HFC
10 Liuzhou Wuling Wuling Micro- and Micro-materials 11 Shenyang Automobile Brake Factory CA1047, CA1037, CA1041
12 Gigalight brakes CA6361, CA6360, CA1010
13 Henan Ding EQ1141, STR
14 Jiangling Huaxiang Landwind 15 Wuhu Automobile Hydraulic Brake Pump Factory Jianghuai 16 Shaanxi Huaxing Aircraft Wheels Changhe, Chang'an 17 Shiyan Gold Wheels Heavy and Light 18 Jixi Brake Factory CA1021, CA1031, CA1041
19 Tianjin Automotive Brakes TJ7101, TJ7101U
20 Penglai Wanshou Liu, Liu et al. 21 Ankang General Machinery EQ1141G
22 Qingdao Huarui EQ1141, EQ1090, QE6440, QE6400
4 Henan Wanxiang SC1010, BJ1040, EQ1090
5 Anhui Kangda HFC1060, HFC1040, etc. 6 Changchun FAW four-ring chassis CA trucks 7 Guilin Wanxiang Qianchao LZW, LZT, LZ, exports, etc. 8 Wuxi Jinghua BJ1040, EQ1030, SM1040, YZK1020
9 Jiangsu Hengli CA, EQ, HFC
10 Liuzhou Wuling Wuling Micro- and Micro-materials 11 Shenyang Automobile Brake Factory CA1047, CA1037, CA1041
12 Gigalight brakes CA6361, CA6360, CA1010
13 Henan Ding EQ1141, STR
14 Jiangling Huaxiang Landwind 15 Wuhu Automobile Hydraulic Brake Pump Factory Jianghuai 16 Shaanxi Huaxing Aircraft Wheels Changhe, Chang'an 17 Shiyan Gold Wheels Heavy and Light 18 Jixi Brake Factory CA1021, CA1031, CA1041
19 Tianjin Automotive Brakes TJ7101, TJ7101U
20 Penglai Wanshou Liu, Liu et al. 21 Ankang General Machinery EQ1141G
22 Qingdao Huarui EQ1141, EQ1090, QE6440, QE6400
3 Wanxiang Qianchao variety of domestic cars and exports 4 Tianjin Bus Bridge VIOS, TJ7101, TJ7131, SY6500
5 Chongqing Chi Sheng SC6350, HFJ6370, CH6370
6 Zhejiang Kote various cars 7 Liuzhou Wuling Wuling micro-offers, micro-cargo 8 Henan Wanxiang CH1018A, SC7080 etc. 9 Shandong Feicheng Yunyu various cars 10 Hubei Huayang EQ
11 Kyrgyzstan Light Brake CA6361, CA6360, CA1010
12 Shaanxi Huaxing Aircraft Wheel Changhe, Chang'an 13 Harbin North QCJ7081, HFJ6370, CA6350, JNJ7080
14 Wanan Group Bus 15 Qingdao Huarui SY6486 
1. Needles: These are the most important elements of a Warp Knitting Machine. They are used to form the stitches and create the fabric.
2. Sinkers: These are used to hold the fabric down while the needles form the stitches.
3. Guide bars: These are used to control the movement of the yarn as it is fed into the machine.
4. Carriage parts: These include the carriage itself, as well as various parts that help it move smoothly across the machine.
5. Belts and pulleys: These are used to transfer power from the motor to the various moving parts of the machine.
6. Lubricants: These are used to keep the moving parts of the machine running smoothly and prevent wear and tear.
7. Electronic components: Many modern warp knitting machines include electronic components such as sensors, controllers, and displays that help operators monitor and control the machine.
All of these elements and spares are essential for keeping a warp knitting machine running smoothly and producing high-quality fabrics. It's important to use high-quality parts and to perform regular maintenance on the machine to ensure that it operates effectively and efficiently.
Overview of Development of China's Automobile Braking System Industry
The development of modern car brakes originated in the original mechanical control device. The most primitive brake control is only the driver's manipulation of a set of simple mechanical devices to apply force to the brake. At that time, the weight of the car is relatively small, the speed is relatively low, and the mechanical brake. It has been able to meet the needs of car braking, but with the increase in the weight of the car itself, the booster device is increasingly important for mechanical brakes. Thus began to appear vacuum booster. In 1932, the Cadillac V16 with a weight of 2860kg was equipped with a 419.1mm diameter drum brake and a vacuum booster controlled by a brake pedal. Lincoln also introduced the V12 sedan in 1932. The car uses a drum brake that controls the vacuum booster through four soft cables. With the development of science and technology and the development of the automobile industry, especially the development of military vehicles and military technology, new breakthroughs have been made in vehicle braking. Hydraulic braking is another major innovation after mechanical braking.