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彎頭技術要求Technical requirements of elbow

1、由于管件大多數用于焊接,為了提高焊接質量,端部都車成坡口,留一定的角度,帶一定的邊,這一項要求也比較嚴,邊多厚,角度為多少和偏差范圍都有規定。表面質量和機械性能基本和管子是一樣的。為了焊接方便,管件與被連接的管子的鋼種是相同的。
2、就是所有的管件都要經過表面處理,把內外表面的氧化鐵皮通過噴丸處理噴掉,再涂上防腐漆。這是為了出口需要,再者,在國內也是為了方便運輸防止銹蝕氧化,都要做這方面的工作。
3、就是對包裝的要求對于小管件,如出口,就需要做木箱,大約1立方米,規定這種箱子中的彎頭數量大約不能超過一噸,該標準允許套裝,即大套小,但總重量一般不可超過1噸。對于大件y就要單個包裝,像24″的就必須單個包裝。另外就是包裝標記,標記是要注明尺寸、鋼號、批號、廠家商標等。
1, as most of the pipe fittings are used for welding, in order to improve the welding quality, the end is all turning into a slope, leaving a certain angle and with a certain edge. This requirement is also strict, the edge is thick, the angle is as much as the range and the range of the deviation are all stipulated. The surface quality and mechanical properties are basically the same as those of pipes. For the convenience of welding, the fittings of the pipe and the connected pipe are the same.
2, that is, all fittings must be treated by surface treatment. The oxide scales inside and outside are sprayed out by shot peening, and then coated with anticorrosive paint. This is for export needs. In addition, it is also for domestic transportation to prevent rust and oxidation.
3, the requirements for the packaging for small pipes, such as the export, the need to do wooden cases, about 1 cubic meters, the number of bends in this box can not be more than one ton, the standard allows suit, that is, large sets, but the total weight is generally not more than 1 tons. For large y, a single package is required, like 24 ', which must be packed individually. Another is the packaging mark, marking is the size, the steel number, the batch number, the manufacturer trademark and so on.