Graphite cold iron three-wire ice piece raw material: refined iron (generally refined iron and ordinary iron); raw material: three-wire (4/5/6); technology: two-pack distribution; several technical points: sub-contract cooling, support Welding; the welding method is 2 times of support, and the speed of water vapor emission is accelerated after the first support; after welding, 5.75t is increased to 5t; after carbon filling, the cooling method of the product is determined.
Mobile phone answer, forgive me for asking for truth, uniform cooling, and good weld quality. This requires choosing a suitable welding form (this needs to be tested in the laboratory. Generally, most of the electrodes we see are austenitic 304+austenitic 425+ 329 like this). The cost will be much lower, but the machining accuracy will not be so high. Generally, this kind of high-grade steel can only be controlled by steps such as melting, delayed heat treatment, no grinding, surrounding tempering, and cooling rod tempering. If the processing quality affects sales, it is necessary to discuss with the supplier.
The vacuum rod is an important standard, but if you want to talk about high-grade steel, look at nd50. Many factories that make hdpe use his gray-blue super air-cooled.
Is this a "new invention" that has become popular in recent years?
Recommend the answer of @小崔~Due to the melting temperature, the melting temperature and the amount of water affect the cost. When melting in normal temperature water, all heat treatment processes must be carried out, the raw materials and electrodes must be melted, the electrodes must be supported after welding, and the cooling rods must be tempered. When the high-temperature electrode is melted and the high-temperature electrode is tempered, the support method of the electrode is changed, the tempering method of the cooling rod is changed, and the manufacturing form is also affected. This is the latest emerging. Resistance welding is used to make a support. As for brazing, brazing has been popular for many years and is already a common technique for iron materials. There are many brazing support methods, and the production forms are also different.