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2022-06-23
Details
The quality characteristics of stainless steel
Generally speaking, stainless steel products are different, the thickness tolerance of the required raw material is also different, such as two kinds of tableware and thermos cup, thickness tolerance is generally higher, is -3~5%
Ball valve maintenance and maintenance precautions and ball valve storage method
With the accelerated pace of modern industrialization, machinery and equipment appear more and more frequently in people's life, people's pace of life is getting faster and faster, the demand for a variety of dairy products, drinks, fast food gradually increased, but also pulled the development of heat treatment steel strip industry. Heat treated steel strip is widely used in the market, which brings more kinds of products to people's life and brings benefits to many manufacturers. Heat treated steel belt is suitable for die cutting tool, etching tool die, corrosion tool die, large circular saw blade matrix, machine tool guide rail, railway link steel sheet and military products, etc. At present, this kind of large size heat treated high strength steel belt is completely imported, and subject to the strict limit of exporting countries.
Improve the treatment technology of heat treated steel strip
Steel strip is a kind of narrow and long steel plate produced by various kinds of rolling enterprises in order to meet the needs of different industrial sectors to produce various kinds of metal or mechanical products. Steel strip, also known as strip steel, is a width within 1400mm, the length varies slightly according to the size of each roll. Strip steel is generally supplied in rolls, with high dimensional accuracy, good surface quality, easy processing, material saving and other advantages. The same as the steel plate, the steel strip can be divided into ordinary strip and high quality strip according to the material used. According to the processing method, there are two kinds: hot rolled steel strip and cold rolled steel strip.
Causes of common surface defects in cold rolled strip steel
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 very important. The next cold rolled steel strip manufacturer - Hualao Steel Strip Co., Ltd. for everyone a simple analysis.
Questions and Answers about cold rolling production process
1. What are the requirements of the mill for incoming cold rolled sheet material? Answer: 1) The chemical composition of steel should conform to the provisions of national standards.
Summary of defects in strip pickling and cold rolling
Hot rolling incoming materials, push-pull hydrochloric acid pickling, single reversible cold rolling, electrolytic degreasing cleaning, all hydrogen (or nitrogen hydrogen) annealing furnace, single leveling, rewinding longitudinal cutting (or transverse cutting), stretching bending straightening, packaging, storage and transportation, etc.