法兰盘加工一般分为四种工艺

Flange processing generally divided into four kinds of craft

法兰金属缠绕垫片/河间市保方密封材料厂13833985928.

Flange sealing materials plant 13833985928 on metal winding gasket/hejian.

第一种：用废铁销、冶炼、出胚、成本较低，因为大部分炼炉都是，小作坊，材质根本无法保证；其二工艺简单，胎体会有气孔。

The first: with scrap iron pin, smelting, the embryo, the cost is low, because most of the furnaces are, small workshops, material cannot guarantee; Second process is simple, the tire with porosity.

第二种：是钢板、切割、法兰、一般都是，正规企业生产的钢板，材质比较正规，一般小孔径的比较多见，加工起来比较轻松，胎面比较平整，成本较低 质量也可以。

The second: is steel plate, cutting, flange, is commonly, formal production of steel plate, the material is regular, small aperture more commonly seen, processing up more relaxed, tread more level off, the cost is low Quality can also.

第三种：是大口径法兰，一般都是用钢板、裁剪完、然后加热、煨卷、而成 材质也不不错，只是中间会有一个接口，需要焊接而成，虽然加工以后看不到焊口，但是还是不建议用在，高压管道上。

Third: it's a big caliber flange, are generally use steel, cut out, then heating, heat volume, and into Material is not good, just in the middle will have an interface that needs to be welded together, although after processing can't see the joint, but still not recommended for use in, high pressure pipe.

第四种：是锻打法兰材质好，密度高，加工起来最麻烦，但是质量最好。

Fourth: forging flange material is good, high density, the most trouble to processing, but the quality is best.