investment cast power grids by Qingdao Hexin Machinery Co., Ltd.
QINGDAO HEXIN MACHINERY CO.,LTD.
Address: BeiAn Industrial park, Qingdao,China
QINGDAO HEXIN MACHINERY CO.,LTD is one of the leading producers of heat resistant castings, with high nickel chrome alloys.
We manufacture cast trays and grids for batch furnace and skid hearth furnace, casting stackable baskets for heat treatment furnaces, roller hearth trays , serpentines trays , furnace fixtures, jigs, for chamber furnace, pit furnaces.
centrifugal cast furnace rolls, radiant tubes, heat recuperators, skid riders, sink rolls, stabilizer rolls, arms,
bushes and sleeves,and petrochemical cast catalyst tubes, pyrolysis furnace parts, tube sheets, tube supports, tube hangers, incinerator grate bars, air cooled grates, water cooled grate blocks, muffles, rotary retorts, etc.,
At QINGDAO HEXIN, we produce heat treatment furnace components by investment casting or lost wax casting method, and sand casting method.
We produce various heat resistant castings with high nickel and high chrome heat-resistant special alloys, cobalt alloys, like HU, HT, HK, HP, HW, 50Cr/50Ni (2.4813), 1.4865, 1.4849, 1.4848, 1.4852, 2.4879 ,
and all those alloys can work at very high temperature as critical components. (Investment cast trays and grids, nickel alloy heat resistant investment cast trays and grids )
Qingdao Hexin Machinery Co., Ltd. will introduce to you the method of determining the casting position. The so-called pouring position refers to the position of the precision casting tray in the mold during casting.
Proper pour location should ensure a complete casting and facilitate styling, core making and cleaning. The general principles for determining the pouring position of precision castings are:
1. The important processing surface, main working surface and stress surface of the casting should be located at the bottom or side as far as possible to prevent casting defects such as blisters, pores and slag inclusions on these surfaces.
2. The pouring position should ensure that the molten metal solidifies according to the determined solidification sequence. For alloys with large shrinkage,
the pour location should favor sequential solidification, and the majority of the thickness of the casting should generally be placed above the pour location to promote solidification at the feed port.
3. The pouring position of precision casting should be conducive to the positioning, support and exhaust of the core, and try to avoid the suspension of the core and the cantilever core. (Investment cast trays and grids, nickel alloy heat resistant investment cast trays and grids )