Starting from demonstrating the production capacity of enterprises and industries, keeping pace with the pulse of the times, exploring the law of development of the industry, and leading the continuous development of China's forging industry, since 2004, China Forging Association will run the annual China International Metal Forming Exhibition and Conference. The selection of the Forging Awards is an important task that leads and promotes the development of the industry through the selection and recognition of representative, advanced and directional forged products. On September 27, 2013, the 2013 China International Metal Forming Exhibition “Shengong Award†(another name for “Quality Forging Awardâ€) and the selection of high-quality parts and components were successfully concluded in Shanghai. Through the changes of the exhibitors, the number of exhibits and the technical characteristics of previous "Quality Forgings" products, we can clearly see the development of China's forging industry.
Forgings exhibition is the epitome of the development of China's forging industry
1. Market demand space improvement
Since the reform and opening up, especially during the "Eleventh Five-Year Plan" period, China's automobile, engineering machinery, agricultural machinery, railway, wind power and nuclear power forgings manufacturers have ushered in a rare development opportunity. First, the downstream industry has developed by leaps and bounds, and the second is Yue The higher the localization rate of forgings provides a broad space for the forgings market. Third, the parts and components of other countries purchase forgings from China, which provides new opportunities for the development of the forging industry. According to the data, in 2001, China’s automobile sales volume was 2.34 million units. In 2010, the sales volume in 2010 exceeded 18 million units for the first time, ranking first in the world. The representative product excavator in construction machinery sold 17 811 units in 2002 and reached in 2010. 16.5 million units; the large-wheel trailer in agricultural machinery products is basically from scratch, reaching 126,000 units in 2010. In the environment of rapid market demand growth, the output of die forgings in China increased from more than 1 million tons in 2002 to 6.9 million tons, making forging stand out from the traditional casting and forging industry and become one of the basic industries.
2. Exuberant demand has spawned more and more "new faces"
Since the founding of the People's Republic of China, in the early stage of reform and opening up, China's forging enterprises have strictly followed the layout of planned economic conditions to meet the needs of group and regional forgings. However, with the rapid increase of market demand, the original pattern has undergone profound changes. First, the original forging enterprises "expanded". On January 8, 2005, the former Dongfeng Commercial Vehicle Co., Ltd. and Hubei Shenli Forging Co., Ltd. were converted into Dongfeng Forging Co., Ltd.; on March 20, 2006, China First Automobile Group and India Barrett Forging Co., Ltd. FAW Barrett Forging (Changchun) Co., Ltd., a joint venture, was formally established in Changchun. Second, the new interveners have become the supporting force for the forging industry. For example, Jiangsu Senwei Precision Forging Co., Ltd. is a forging company established in 2006 by Jiangsu Senwei Group and China Wanxiang Group Tonglian Venture Capital Co., Ltd., and like Hangzhou Zhijiang Forging Co., Ltd., Jiangyin Hengye Forging Co., Ltd. Forging companies established in 2000, such as Kunshan Quanshun Aluminum Forging Co., Ltd., Deqing Xinhong Forging Co., Ltd. and Ningbo Yinzhou Jiangshan Shunda Forging Factory, were largely the products of the strong market demand at that time. Third, some forging processing units have entered the forging industry and become a new force in China's forging industry, such as Hengrun Forging of Wendeng Tianrun Crankshaft Company and Fuda Heavy Industry Forging of Guilin Fuda Company.
Exhibitors are exquisite
3. Market ups and downs directly affect the steps of the forging industry
Based on the influence and experience of the previous period, at the China International Metal Forming Exhibition in 2007, the number of forging parts was 152, and in 2008 it was reduced to 75. The global economic crisis of 2008 pushed the global economy to the brink of collapse. In particular, the monthly production and sales of heavy-duty trucks representing the Chinese economic barometer in the fourth quarter were less than 20,000 units, compared with 890,000 units sold in March and April of that year. A very sharp contrast is formed. In order to solve the problem of economic downturn in demand, the State Council quickly launched a 4 trillion yuan revitalization plan. With the availability of relevant national policies, China's economy has recovered rapidly, and it has also achieved recovery growth for the forging industry in 2009. The number of forging parts for the year was increased from 75 in 2008 to 79. Continuing this trend, in 2011, there were 101 types of forging parts, but in the case of the continuous adjustment of the national policy orientation and the repeated decline of commercial vehicle construction machinery, the number of forging parts in 2012 fell back to 70 again. . As the "Twelfth Five-Year Plan" draws to a close, the new government has gradually exerted its strength, creating conditions for the 2013 forging parts to be upgraded to 93 types.
The industry has undergone profound changes in the market test
1. Simple forging is replaced by "integration"
The first is to extend the industrial chain upwards in order to ensure supply security. Tianrun Crankshaft Co., Ltd. is currently the largest professional manufacturer of crankshafts in China. Its products include Weichai, Xichai, Dachai, Yuchai, Shangchai, Dongfeng Cummins, Xi'an Cummins, Italy Iveco and Dongan engines. Considering the demand for crankshaft blanks, a DG38 air hammer production line was introduced from Germany in the early stage. In order to meet the continuous demand for blanks in the mechanical processing industry, the PSZ900 16 000t high-energy electric screw press and PZS750F electric screw pressure were launched. Machine forging production line project, and 6300t, 4000t and 2500t forging production line projects. Guilin Fuda Group Co., Ltd. originally produced automobile clutches. After entering the crankshaft processing, it also locked its eyes on the control of crankshaft blank resources. In March 2009, it established its own forging company with 14 000t hot forging press. 12 500t hot forging press and 8000t, 6300t and 4000t hot forging lines.
The second is to delay the industrial chain and adapt to changes in the needs of end customers. Liaoning Wuyihe Internal Combustion Engine Parts Co., Ltd., which mainly produces crankshaft forging blanks, has 10t forging hammer crankshaft production line, GH3200 electro-hydraulic hammer production line, Germany 5000t hot forging press production line and 8000t, 14 000t hot forging In order to meet the demand of the diesel engine factory for the finished crankshaft, the press production line has formed more than 16 finished crankshaft processing lines through equipment investment, with an annual output of 500,000 pieces of forged steel finished crankshafts. In fact, the large-scale implementation of refined supply is not only a private enterprise, but even the state-run forging enterprises such as FAW forging and Dongfeng forging have begun to plan industrial restructuring. At the China International Metal Forming Exhibition in 2011, FAW forged exhibited its knuckle finished products for four-wheel drive off-road wagons, and Dongfeng forged exhibited front axle products. In 2013, the number and variety of exhibitors participating in the exhibition reached a new high. The industry generally believes that the days of forgings in the future will be gone forever. Adapting to this "integrated" supply trend and accelerating the pace of metal processing will not only help the products open to the market, but also the pulling effect on the blanks. obvious.
2. "The pioneer" on the road of energy saving and emission reduction
A very obvious sign of previous forgings exhibitions is that the advantages of die forging hammer products are gradually replaced by advanced equipment such as forging presses with higher precision and less pollution. The traditional forging hammer heating is mainly based on gas, the energy utilization efficiency is low, the steam is only 3%, the gas is less than 15%, and after changing to the electro-hydraulic hammer, the economic and social benefits are very significant. At present, the main steam die forging hammers in China have basically been transformed into electro-hydraulic hammers. For example, China's three towed 10t electro-hydraulic hammers, two 16t electro-hydraulic hammers from China National Heavy Duty Truck Forging Plant, two 16t electro-hydraulic hammers from Shanxi Forging Plant and two 10t electro-hydraulic hammers from Sun Forging. With the continuous improvement of equipment capacity, the 10,000-ton line replacement electro-hydraulic hammer has become the main equipment of complex products such as the front axle of the crankshaft. Compared with the die-forging hammer, the die forging on the forging press can generally reduce the metal loss by 5% to 10%. High degree. Compared with the hammer for steam, the energy saving is more than 80%. Before 2000, there were only three domestic forging production lines of over 10,000 tons, namely the 12500t hot forging press production line of FAW forging factory, the 12 000t hot forging press production line of Dongfeng Forging Factory and the 12 500t hot mold of Hubei Shenli Forging Factory. Forging press production line. In 2008, the 12 500t hot forging press production line of FAW Barrett Forging Co. and Yituo Forging Co., Ltd. was completed and put into production respectively. The PSZ900 electric screw press of Yicheng Group Fucheng Forging Co., Ltd. also formed mass production capacity that year. At present, more than 18 tons of 10,000 tons of lines have been put into operation and under construction in China, which can form a complete substitute for the original electro-hydraulic hammer products, and the energy saving and emission reduction effect is very obvious.
3. New technology and new technology are in the ascendant
In order to improve product competitiveness, major domestic forging companies have worked hard on the development and application of new technologies and new technologies, and exhibited the most representative products at the forging exhibition. For example: FAW Barrett Forging's steering knuckle changed the previous traditional process, using 10t die forging hammer vertical forming, 1250t hydraulic press is squeezing the rod to form a through hole; Dongfeng Tianlong dCill crankshaft, forging quality is similar to similar foreign products Reduced by 1kg, the surface quality has reached the international F-class accuracy; Anhui Xiaoxiao Technology Industrial Co., Ltd. demonstrated the self-developed MT-452-1/2 gear, CA142-5/6-speed synchronous cone, etc.; Jiangsu Pacific Precision Forging The two-axis two-stop ring gear of Science and Technology Co., Ltd. has reached the national standard 7 with the accuracy of tooth profile. It belongs to the international advanced level; the triangular flange of Shanghai Jiaotong University Zhongjing Forging Co., Ltd. adopts radial extrusion process to make the material utilization greatly. Shandong Shenli Rigging Co., Ltd. SL784 upper steel cap adopts hot extrusion process, the forging precision is high, the material utilization rate is up to 99%; Zhejiang Huangyan Jiangxin Forging Co., Ltd. P052 connecting rod forgings, Liaoning Wuyi Internal Combustion Engine Parts Co., Ltd. The surface quality and precision of forgings such as 50K-20 crankshafts have been greatly improved. In the 2013 Forgings Exhibition, Shandong Hengtai Axle Co., Ltd. exhibited a large front axle of 137kg produced by 6300t friction press. Shanghai Dongfu Cold Forging Co. exhibited a 2500t hot forging press with warm forging. After the "sleeve forgings" formed by cold forming of small tonnage presses, Jiangsu Senwei Precision Forging Co., Ltd. exhibited the DQ356A flange shaft which was first processed by warm forging process and then cold-shaping process.
Sectional Door Accessories: motor 220V-380V, control box, spring break device, cable break device , aluminum alloy rope pulley, enhanced shaft bracket, air bag system, duplex enhanced guide wheel bracket.
Detail introduction for above main accessories
1.Motor and controller:
The garage door operator is designed for residential overhead sectional and tilt doors.
The operator memorizes the limit positions and unique braking system that slows the unit down at the end of its travel.
Rolling code remote control with max. 20 pcs hand transmitters.
The operator is equipped with a manual release lever which allows manual operation of the door in case of power failure.
The controller has a security LOCK function which prevents operation of the door from transmitter.
2.spring break device:
Sectional doors are hinged and they bend in the tracks as the door opens and closes. Many of these doors are counterbalanced with extension springs, also designated "stretch springs," and they have seven characteristics. The length is the measurement of all the coils pressed together. This, along with the inside diameter of the coils and wire size - the thickness of the wire from which the springs are made - determine the stretch, the distance the spring is extended - normally half the door height, and pull, the force the spring pulls when stretched its normal length. The type of ends determine how the ends of the spring are mounted. The initial tension is the percentage of pull needed to separate the coils. This is determined by the pitch with which the springs are wound. On sectional garage door springs this is normally 15 percent. For example a 100 pound pull spring requires 15 pounds of weight to separate the coils; when a door is open the two springs will support 15 pounds of door weight without any stretch.
Most extension springs are made of oil tempered wire. These are normally coated or painted. Some springs are made of galvanized wire.
3.able break device:
cable break device ,door hardware
adjustable bottom bracket .
the raw material hot plate
zinc plated
safety device
adjustable bottom bracket
the raw material hot plate
zinc plating
spring safety device ,2" and 3" safety device
once the cable is broken ,this devoice can keep the hurt away from the door falling
4.aluminum alloy rope pulley
Equipment: CNC stamping/punching machine, CNC bending machine, CNC cutting
machine, 5~250 tons punching machines, welding machine, polish machines...
Processed material: stainless steel: copper, carbon steel
Surface treatment: Hot galvanized, polishing
Making process:Stamping, deep drawing,bending, punching, laser cutting,threading,
welding, tapping, riveting, grinding
5.air bag system
It is a safety device. When the door is down to hit something, it will up automatically.
Operation pressure:<3mbar
Battery:CR2032*2
Battery lifetime>1 year
Emission frequency: 315MHZ
Emission power:<10mW
Receiver power source:12V
6.duplex enhanced guide wheel bracket
Determining the right type of sectional door roller for your garage door tracks can be a little confusing, especially when you do not know what you need to look for in a garage door roller. To simplify things, there are two primary things you need to be aware of. First are the actual dimensions of the roller, and second is purpose that you will be using the door for. You can read below about measuring your roller and choosing the right quality of material for your door.
Other Door Accessories,Electronic Door Accessories,Automatic Door Accessories,High Speed Door Radar Detector
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfhighspeeddoor.com