Precautions for the Maintenance and Inspection of Ball Valves, and Methods for Storing Ball Valves
Release Date:
2022-06-23
Author:
Hengyuan Industry and Trade
As the pace of modern industrialization accelerates, mechanical equipment is becoming increasingly prevalent in daily life, and the pace of living is steadily quickening. Consequently, demand for dairy products, beverages, and fast‑food items is rising, which in turn is driving growth in the heat‑treatment steel strip industry. Heat‑treatment steel strips are widely used in the market, enriching consumers’ choices and generating substantial profits for many manufacturers. These strips are suitable for applications such as die‑cutting blades, etching dies, corrosion dies, substrates for large circular saw blades, machine tool guideways, railway joint plates, and military‑grade components. At present, large‑size, high‑strength heat‑treatment steel strips are entirely imported and subject to stringent export restrictions imposed by the supplying countries.
Heat-treated steel strips, classified by manufacturing process, can be divided into hot-rolled heat-treated steel strips and cold-drawn (cold-rolled) heat-treated steel strips. Hot-rolled heat-treated steel strips include round or trapezoidal bars used for manufacturing helical springs and torsion bars, as well as flat bars for producing leaf springs. Cold-drawn (cold-rolled) heat-treated steel strips comprise cold-drawn wire for small‑size helical springs and cold‑rolled strips for making clock springs and various spring leaves. Alloy heat-treated steel strips typically contain manganese, silicon, chromium, molybdenum, tungsten, vanadium, and trace amounts of boron; these alloying elements all enhance the steel’s hardenability. Manganese and silicon, when dissolved in ferrite, increase yield strength. Chromium, tungsten, and vanadium improve the steel’s elasticity, yield‑to‑tensile ratio, and heat resistance. The Wuzhong District Mudu Yongchang Metal Products Factory in Suzhou primarily manufactures a range of cold‑rolled steel strips, heat‑treated steel strips, spring steel strips, 65Mn steel, 65Mn steel strips, No. 60 steel, No. 50 steel, ordinary steel strips in various specifications, as well as grades such as 195, 235, and T8. In response to market changes, our company promptly conducted market research and evaluation, leading to the decision to add a new heat‑treatment production line capable of manufacturing extra‑thick and extra‑wide products. This line is designed to produce heat‑treated steel strips with thicknesses up to 6.0 mm and widths up to 450 mm.
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Two categories of heat-treated steel strips
As the pace of modern industrialization accelerates, mechanical equipment is becoming increasingly prevalent in daily life, and the rhythm of people’s lives is quickening. Consequently, demand for dairy products, beverages, and fast‑food items is steadily rising, driving growth in the heat‑treated steel strip industry. Heat‑treated steel strips are widely used across numerous applications, enriching the market with a broader range of products and generating substantial profits for many manufacturers. These strips are suitable for die‑cutting blades, etching dies, corrosion dies, substrates for large circular saw blades, machine tool guideways, railway joint plates, and military‑grade components. At present, large‑size, high‑strength heat‑treated steel strips are entirely imported and subject to stringent export restrictions imposed by the supplying countries.
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