发布人：http://www.kdjlm.com 发布时间：2019-05-23 14:05:28
市面上的车库门及工业大门的门板，是将O. 26mm-0. 5mm的镀锌板或彩钢板制造成车库门板或工业大门门板需求的面板或背板，再应用聚氨酯发泡剂将这两块板粘接在一同，在粘接之前在设计好位置的中央放上100mmX 100mmX0. 8mm的铁块作为今后装置打自攻钉用的预埋铁，有4个缺陷。 第一凹槽接口处，由于车库门或工业大门在实践运用中，不停地上下运动，当门板着地时，整个门体有向下的压力，容易将门板凹槽处顶裂开，致使门板损坏。第二 预埋铁容易在聚氨酯发泡剂的压力下错位，形成装置时不易找到预埋铁，致使无法将合页装置结实。第三普通车库门及工业大门的门板的厚度为40mm，假如做得太厚，本钱太高，形成糜费，不做太厚话，在40mm的根底上,再门洞宽度超越5000mm的状况下,抗风性能差；
The door panels of garage doors and industrial doors on the market are made of O.26mm-0.5mm galvanized or coloured steel sheets into the panel or back panels required for garage door panels or industrial door panels. The two panels are bonded together by polyurethane foaming agent. Before bonding, 100 mmX 100 mmX 0.8mm iron blocks are placed in the center of the designed position as pre-embedded iron for self-tapping nails in future devices. There are 4 pre-embedded iron panels for self-tapping nails. A flaw. At the first groove interface, the garage door or industrial gate keeps moving up and down in practice. When the door plate touches the ground, the whole door body has downward pressure, which easily cracks the top of the groove of the door plate and causes the door plate to be damaged. Secondly, the embedded iron is easy to dislocate under the pressure of polyurethane foaming agent, and it is difficult to find the embedded iron when forming the device, which makes it impossible to consolidate the hinge device. Thirdly, the thickness of the door panels of ordinary garage doors and industrial doors is 40 mm. If they are too thick and the cost is too high, the wind resistance will be poor if the width of the doors exceeds 5000 mm on the basis of 40 mm.
Perhaps some manufacturers add galvanized steel plate to the back of the door plate to press the external reinforcement bar, and fix it with core-pulling rivet device, but the effect is not good, because the reinforcement bar and the back plate of the door plate can not become a whole. Fourth, polyurethane foaming agent is easy to spill over at the convex groove, and easy to pollute the appearance of door panels and waste the information of polyurethane foaming agent.
The special door panels for garage doors and industrial gates include panel and back panels. The joint grooves of panel and back panels are riveted and joined together by gears. The back panels are composed of multi-layer galvanized steel sheets or color steel sheets to replace the original embedded iron and ensure the stability of the device. The exterior of the panel suppresses multiple grooves. A foam strip is also arranged at the joint groove between the panel and the backplane. The back plate presses multiple raised keels. The riveting area at the groove is designed according to the principle of rolling mill forming. The back plate of the door plate is rolled out of the mandarin duck buckle with the edge of the panel, and then riveted and pressed together by gears. Compared with the original technology and structure in the first part, the connection effect of the door plate is doubly strengthened, even if the door body is under the condition of no pulling force of the torsional spring in the process of operation, it is impacted by gravity. And it won't break apart. In the first part, the inaccuracy of the hinge often occurs. This defect is thoroughly dealt with. The embedded position can be found accurately within the range of the height of the hinge at will, and the stability of the hinge can be guaranteed.
The protruding keel makes the reinforcing rib and the door panel become a whole, and does not require the placement of the external reinforcing rib. It saves information, strengthens the wind resistance of the door panel and reduces the cost. A 2mm foam adhesive strip is added to the convex slot of the panel and the back board, which blocks the leakage of polyurethane foaming agent, and handles the pollution of the door panel surface and no longer wastes information. By pressing 3_deep grooves on the outside of the door panel, the waste of flattening the outside of the door panel with foaming agent after metal pressing deformation is effectively dealt with, and the purpose of increasing the strength of the panel is also achieved.