-
About UsHengli is a professional supplier specializing in providing raw and auxiliary materials and feeding line processing equipment for the foundry industry.
-
ProductsThe company's main products are cored wire, heat insulation riser sleeve, green intelligent feeding line treatment equipment, spheroidizing agent, inoculant and other new modified materials for casting.
-
SolutionThe series of products developed by the company, such as spheroidizer, inoculant, cored wire, heating insulation riser sleeve intelligent feeding line treatment equipment, intermediate alloy, etc., have been widely used in wind power, nuclear power, aerospace, high-speed rail, automobiles, agricultural machinery and construction machinery, etc. Production of castings for high-end equipment manufacturing.
-
-
-
Contact UsIn case of product quality problems during the warranty period, we guarantee to deal with them in a timely manner. After the expiration of the warranty, we still provide after-sales service, only charge for materials. We promise to reply within 24 hours after receiving the call and arrive at the scene within 3 days.
News & Events
Application of heating and heat-insulating riser sleeve in pouring of vacuum induction melting furnace
Release time:
2024-01-30
Thermal insulation riser sleeve is a thermal insulation product used in casting castings in the metallurgical industry. In the past, cement products with lightweight thermal insulation materials such as expanded perlite and ceramsite were used as aggregates, and fiber composite products were also used abroad. The floating bead has superior high temperature resistance, heat insulation and heat preservation performance, and has no effect on the composition of the steel grade. Therefore, the floating bead type heat preservation riser is selected. The floating bead insulation riser is a kind of insulation product made by mixing, molding, drying and other processes with pure floating beads as the aggregate and water glass as the gel material.
Vacuum induction furnace smelting is a smelting method of heating, melting, refining, alloying and pouring under negative pressure. Since all metallurgical processes are carried out in isolation from the atmosphere, atmospheric pollution of molten steel is avoided. Molten steel is refined under vacuum, which can significantly improve its purity and accurately control the chemical composition of the steel. Due to the limitation of the size of the vacuum chamber, the general use of vacuum furnace smelting is basically a blank or master alloy, followed by such as electroslag remelting, forging, rolling and other hot processing processes. The vacuum induction melting furnace of our unit mainly produces steel ingots, and then rolls and pulls them to make welding wires of different specifications. This requires the ingot to have a better pouring quality, the internal is not allowed to have loose, inclusion, shrinkage and so on. In the atmospheric state, the upper surface of the steel ingot may be finally solidified by feeding by adding a coating agent or the like, thereby forming the steel ingot having the cross section shown in FIG. 1. However, in the vacuum state, due to the lack of feeding means, the steel liquid will be solidified from each surface at the same time, often in the heart of different degrees of shrinkage, as shown in Figure 2, greatly affecting the yield.
Thermal insulation riser sleeve is a thermal insulation product used in casting castings in the metallurgical industry. In the past, cement products with lightweight thermal insulation materials such as expanded perlite and ceramsite were used as aggregates, and fiber composite products were also used abroad. The floating bead has superior high temperature resistance, heat insulation and heat preservation performance, and has no effect on the composition of the steel grade. Therefore, the floating bead type heat preservation riser is selected. The floating bead insulation riser is a kind of insulation product made by mixing, molding, drying and other processes with pure floating beads as the aggregate and water glass as the gel material.
Recommended News
Contact Us
Address：Henan Yuzhou City Industrial Cluster West Industrial Park
Telephone:86-0374-8336188
Fax: 86-0374-8336188
E-mail:sale@henglixincai.com
Copyright©2024 All Rights Reserve of Yuzhou Henglilai New Materials Co., Ltd. Powered by www.300.cn 丨seo