China's auto parts industry is highly fragmented, with a single individual having less funds and weak competitiveness, and it cannot form a strong competitive advantage on its own. At present, China's auto parts industry is still at a relatively low level, with repeated decentralization, low concentration, and single matching. Most of the auto parts companies only provide support for one automaker. They cannot produce scale production and cannot effectively reduce corporate costs. At the same time, the structure of auto parts products is irrational, and there are too few high-tech products and high value-added products, which are mainly concentrated in labor-intensive, low-value-added products. The scale is small, the types of products are large, and the level of specialization is low. Low production efficiency.
At 20°C to 40°C, the NOx mass fraction shows an upward trend, which is due to the reduction of the proportion of premixed combustion in the early stage of combustion, and the highest burst pressure occurs earlier. Intake air temperature from 40 °C to 50 °C, NOx mass fraction showed a downward trend, this is because the combustion reaction time is shortened and the maximum explosion pressure is reduced, and the combustion avoids TDC. More combustion is concentrated in the piston down phase to complete the reason .
In summary, lowering the intake air temperature can effectively reduce soot and NOx emissions. The effects of different intake air temperatures on the combustion of high-density diesel engines were investigated under the condition of 2.6 MPa inlet pressure and 0.3 EGR rate. It was concluded that the combustion mode of high-density diesel engines with low-emission and high thermal efficiency is relatively large. potential. In China's auto parts industry, due to the low market access standards, more and more manufacturers are entering, which in turn leads to a reduction in the distance between price and cost. The specialization of technical equipment and the specialization of the labor force organization promote the improvement of the efficiency of various enterprises within the industrial cluster.
Corrugated Roll Forming Machine
Corrugated Roll Forming Machine
1.This kind of Cold Roll Forming Machine is widely used for making various metal wall panels and roof panels for steel constructions, steel structure projects and containment systems etc.
2. This production line consists of feeding unit, uncoiler, feeding guide, roll forming machine, cutter, automatic stacker, hydraulic system and electric control system.
3. The line speed of this panel forming machine is 40m/min.
Components of Roll Forming Machine for Roof Panel, Wall Panel:
1) Un-coiler:
Electric un-coiler, with coil-car
Load capacity = Max.10Tons;
2) Roll forming machine:
About 18steps to form;
Material of Roller: 45# steel with chromizing on surface
Voltage:380V/50Hz; Main line speed: 40m/min;
3) Hydraulic cutter:
1) Stop to cut, Post cut,
2) Cutting tool material: Cr12, Heat treatment
4) PLC control system:
Using Mitsubishi PLC Control the quantity, length automatically, LCD screen; remote control available
Roll forming machine consists of Uncoiler, Coil sheet guiding device, Main roll forming system, Post cutting device, Hydraulic station, PLC control system and Support table.
Optional with Hydraulic Decoiler, Auto Stacker, Safe Cover, Pre-Cutting, Film Covering Device, and so on.
Related Products:Corrugated Sheet Roll Forming Machine, Corrugated Roll Forming Machine,IBR Sheet Making Machine, Wall Roof Panel Roll Forming Machine, Color Steel Sheet Roll Forming Machine,Corrugated Iron Sheet Making Machine,Corrugated Roof Sheet Making Machine,Corrugated Sheet Metal Roof Making Machine.
Corrugated Roll Forming Machine,Corrugated Sheet Roll Forming Machine,Corrugated Iron Sheet Making Machine,Corrugated Roof Sheet Making Machine
Botou Xianfa Roll Forming Machine Factory , https://www.rollformingmachinecn.com