OEM Manufacturer Stainless Steel Precision Casting Pumps Lost Wax Investment Casting Pump Body Product Presentation Product Name Pump Body Brand name Zeren Material Stainless steel Feature Pump Valve Casting Part Process Investment Casting+CNC Machining Certification ISO9001:2015 Customized support OEM Product General Specs: Material Austenitic stainless steel: 201, 303, 304, 316, 316L, 1.4581, scs14, scs16 Hardened stainless steel:17-4PH, 410, 420, 440C Alloy cast steel: 4140, 4150, 4340, 8620, GS-25CrMo4 Casting alloy tool steel: CS-2, CS-7, CrWMn Carbon steel: 1020, 1025(WCB), 1030, 1040, 1045, 1050 Weight 1g-30kg Casting tolerance CT4-CT7/GBT6414-1999; VDG Merkblad P690 Surface Roughness Ra1.6-Ra6.3 Thickness Min 2mm (1mm in Micro-region) Casting Radius Round radius ≥0.3mm, Internal fillet radius≥0.5mm Blind Hole Depth Max 30mm (Diamter 10mm) Machining Turning,Milling,Drilling,Boring,Threading, Grinding,CNC Machining & test equipment Heat Treatment Annealing,Hardening, Normalizing,Carburizing, Aging Surface Finishing Black Oxide,Black Coating,Anti-Pollution Flashover Coating,Mirror Polish Industry Standards ASTM, ICI, BS, DIN, JIS, ISO Design Software Pro-E, UG,Solidworks, AutoCAD File Format IGS, STP, XT, PDF, JPEG, JPG Case & Solutions Our Case1 & Solutions: Cooperation with HUAWEI - Wrench Casting Parts In 2012, our company developed a product for HUAWEI: wrench casting - tool door and window hardware (As shown below), the material is A3 steel. During the production process, we found the following problems: because the casting is easy to deform, subsequent shaping is difficult. , and after the surface is polished, it needs to be plated with copper and then chrome-plated. At the same time, electroplating will have a magnifying effect on surface defects, and sand holes are prone to occur, resulting in rework or even scrapping after final polishing. Therefore, we recommend only casting the head of the product. The rear plane part is processed by steel plate and then butted together, which does not affect the performance of the product, and overcomes the above defects, and reduces the cost by about 50%. Our Case2 & Solutions: 304 Stainless Steel Diffuser Impellers & Steam Valve In 2016, our company produced diffuser impellers (impeller accessories) according to the drawings provided by customers (As shown below), the material is 304 stainless steel. This product contains five curved air-dissipating holes. It is very difficult to open the mold, make the shell and remove the sand, resulting in a high scrap rate. In this regard, after research and discussion, our engineers decided to use a sand core material that not only has high temperature strength but also is easy to remove sand after high temperature, and finally perfectly solved the problem of curved hole casting. In addition, there is also a steam valve (As shown below), the material is 316 stainless steel, due to the small opening and complex inner cavity, finally successfully solved the problem for the customer by using this sand core material, produced the product, and established a long-term good cooperative relationship with the customer. Our Case3 & Solutions: 316 Stainless Steel Pressure Vent Valve Body In 2018, our company produced the pressure vent valve body (valve accessories) for customers (As shown below). The material is 316 stainless steel. Because the opening is too small, the inner cavity is small and complicated, and it is almost impossible to clean the internal sand core. Clean, so we opened a square hole on the back of the product, welded it with a stainless steel square plate, and opened a dovetail groove at the weld, which is cond