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Common sense problems that steelmaking must understand (3)
Adaugat pe 21/08/2019 10:34:15 de wangkiky

First, the impact of welding materials


1. The influence of the wire type can not replace the manual tungsten hydrogen arc welding wire with submerged arc welding wire, otherwise it will produce intermittent or continuous air holes.


2. The welding wire is not clean, and the surface of the welding wire has rust, oil and water, which will directly cause a large number of pores in the weld.


Second, the influence of the base material


1. Effect of...



cast iron
Adaugat pe 12/08/2019 12:45:22 de wangkiky
Iron-carbon alloys with carbon content of more than 2%. The general carbon content of industrial cast iron is 2.5%-3.5%. Carbon exists mostly in graphite and sometimes in cementite form in cast iron. In addition to carbon, cast iron also contains 1% to 3% silicon, as well as manganese, phosphorus, sulfur and other elements. Alloy cast iron also contains nickel, chromium, molybdenum, aluminum, copper, boron, vanadium and other elements. Carbon and silicon are the main elements affecting the micro...



Stainless steel surface cleaning agent degreasing and degreasing
Adaugat pe 09/08/2019 05:27:58 de wangkiky
9. What are the ways to reduce oxide inclusions in steel?

Answer: To reduce oxide inclusions in steel, foreign inclusions should be minimized. Improve the purity of raw materials; adopt reasonable smelting process, deoxidation system and refining process of molten steel according to the requirements of steel grade; improve the quality and performance of refractory materials used in converter and gating system; reduce and prevent secondary oxidation of molten steel, maintain normal C...



FRP Water Jet Vacuum Pump
Adaugat pe 19/07/2019 05:35:32 de wangkiky
Product Overview
Water jet vacuum pump is a kind of mechanical device with two kinds of effective energy such as vacuum, condensation and drainage. It uses a certain pressure of water flow through the inclined nozzle to eject. Because of the high velocity of jet water, vacuum is generated in the chamber. In addition, due to the direct contact between secondary steam and jet water and heat exchange, most of the steam condenses into water, and a small amount of unconsolidated steam and non-c...



Three factors affecting the price rise and fall of 304 stainless steel
Adaugat pe 02/07/2019 05:37:18 de wangkiky

First of all, the composition of stainless steel, that is, the raw material of stainless steel


Stainless steel is a high-alloy steel that resists corrosion in air or chemically corrosive media. His representative steel grades are 13 chrome steel 1cr17 (430) and 18-chromium nickel Ocr18Ni9. The raw materials of stainless steel are mainly iron, chromium Cr, nickel NI. The price of these raw materials plays a decisive role in the price of stainless steel, and the price of raw materi...



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