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Quality characteristics of stainless steel
Generally speaking, different stainless steel products require different thickness tolerances of raw materials. For example, Class II tableware and thermos cups, the thickness tolerance is generally higher, at -3 ~ 5%, while Class I tableware generally requires-5%, steel pipe requires-10%, and hotel freezer material thickness tolerance requires-8%
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Precautions for maintenance and repair of ball valve and storage method of ball valve
With the acceleration of the development of modern industrialization, machinery and equipment appear more and more frequently in people's lives, and the pace of people's life is getting faster and faster. The demand for various dairy products, beverages, and fast food is gradually increasing, and it is also Pulled the development of the heat treatment steel belt industry. Heat treatment steel strip is widely used in the market, bringing more kinds of products to people's life and bringing benefits to many manufacturers. Heat treatment steel strip is suitable for die cutting, etching die, corrosion die, large circular saw blade matrix, machine tool guide rail, railway connection steel sheet and military products, etc. At present, this kind of large-size heat treatment high-strength steel strip is completely imported and subject to strict restrictions from exporting countries.
Improving the processing technology of heat-treated steel strip
Steel strip is a narrow and long steel plate produced by various steel rolling enterprises in order to meet the needs of different industrial sectors for the industrial production of various metal or mechanical products. Steel strip, also known as strip steel, is within 1400mm in width and slightly different in length according to the size of each roll. Strip steel is generally supplied in coils, which has the advantages of high dimensional accuracy, good surface quality, easy processing, and material saving. The same as the steel plate, the steel strip is divided into ordinary strip and high-quality strip according to the material used; according to the processing method, it is divided into hot-rolled steel strip and cold-rolled steel strip.
Causes of Common Surface Defects of Cold Rolled Strip
The types and causes of surface defects of cold-rolled strip steel are very complicated. Surface defects may occur in every process from steelmaking, hot rolling, cold rolling to user use. Therefore, surface defect control is essential. Next, the cold-rolled steel strip manufacturer-hualuo steel strip co., ltd will make a simple analysis for everyone.
Cold rolling production process knowledge question and answer
What are the requirements of cold rolled sheet for rolling mill?
Summary of strip pickling and cold rolling process defects
Hot-rolled incoming materials, push-pull hydrochloric acid pickling, single-machine reversible cold rolling, electrolytic degreasing cleaning, all-hydrogen (or nitrogen-hydrogen) annealing furnace, single-machine leveling, re-coil slitting (or cross-cutting), stretch bending straightening, Packaging, storage and transportation, etc.
