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Stainless steel wire surface quality and heat treatment of the relationship between __ wire mesh products co. , LTD

Heat treatment can progress the quality of the products, stainless steel wire surface quality, the primary decision in pickling process after heat treatment, this article about the relationship between the stainless steel wire appearance quality and heat treatment. If the scale thickness is uneven, stainless steel wire appearance under the thick and thin, local local substrate metal surface finish is different also, dissolve and pickling of oxide skin appearance and scale attached parts of the matrix metal by acid corrosion degree are different. So, stainless steel wire is uneven. In heat treatment when heated, therefore, it is necessary to constitute the oxide skin evenly, to achieve one to, involving the following conditions, should pay attention to: assuming that heating workpiece surface attachment, oil scale thickness of attached parts and other parts of the oxide coating thickness and composition are different, and creates a carburizing. Subcutaneous matrix metal oxide was carburized parts will be seriously affected by acid corrosion. The initial burning of heavy oil burner jet of oil droplets, if attached to the workpiece, the influence is very big also. Operating official's fingerprint adhesion when also can have influence on the artifact. So operating official do not use hand direct contact with the stainless steel pieces, don't make the work-piece with new oil looks like have cold work attachment of lubricating oil and so on, it is necessary in trichloroethylene degreasing agent, the abundant in caustic soda solution degreasing and then wash with warm water, then heat treatment. Suppose artifacts appearance have sundry, especially organic matter or ash attached workpieces, heating, of course, will have an impact on the scale. Direct contact of oil or gas flame stainless steel produced by the appearance and didn't contact with the local scale. So it necessary to make the heat treatment unit not direct contact with the flame. If processing a part there are residual scale before heat treatment. After heating scale residual parts and not the part of the scale, will present the scale thickness and the differences of composition, of cause uneven appearance after pickling, so should not only pay attention to, after all, heat treatment, and also to energetic wary intermediate heat treatment and pickling. The influence of surface finish is not at the same time. If the surface finish is different, even if the same heating, the appearance of coarse and fine place scale is not the same. For example, in some defects after finishing of local and not finishing the local, constitute the status of the scale is different, so causes uneven appearance of workpiece after acid pickling.
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