by Bonnie | Sep 30, 2026 | Blog
2026/08/28 Summary: The selection of casting materials should start from the "use environment," not the material name. First, determine the true failure modes of the part—wear, impact, high temperature, corrosion, or dimensional deformation—and then match the material group: high-chromium cast iron for wear, high-manganese steel for repeated impact, heat-resistant steel for high internal temperature in the furnace, alloy steel for structural strength, and ductile iron for a balance of cost and toughness. In the foundry engineering phase, the failure cases seen are mostly not a result of the process itself. The mold cavity is filled properly, the size is checked to meet specifications, and shipment is smooth. Six weeks later, the part is returned—cracked, broken, deformed, or worn out—the reason being that the material specified on the drawing was not designed for the actual conditions it would withstand in use....
by Bonnie | Sep 25, 2026 | Blog
2026/06/10 Summary sand casting service: Resin shell mold casting and precision casting(lost wax casting） have optimal scenarios for use: sand casting servicesuitable for large, complex or customized steel castings; the mold cost is low and the material selection is wide; the surface roughness and dimensional stability of resin shell mold casting are superior to traditional sand molds; it can effectively reduce machining tolerance; it is suitable for complex geometries, detailed features, and high-precision requirements; precision castinghowever, the unit cost is higher qiao fu shen casting. QFS is a foundry in Taiwan that offers three production processes with mass production capacity; buyers can provide 2D/3D drawings before inquiring, and the QFS engineering team will evaluate the most cost-effective process option. Introduction...
by Bonnie | Sep 24, 2026 | Blog
2026/05/17 If you have ever submitted a RFQ for a cast steel part, but have waited for weeks to receive a quote, or received quotes from three suppliers that differ by 40%, the problem is usually not with the supplier, but rather with "incomplete inquiry information". Casting quotes are not just a matter of price comparison; they are an engineering estimate. The quote includes the cost of materials, processes, molds, machining, heat treatment, and inspection. When the buyer only provides part names, photos, or samples, the foundry can only make an estimate based on experience; and that estimate often leads to delayed quotes, incorrect PPAP file calculations, or even the first sample not meeting specifications....
by Bonnie | Sep 23, 2026 | Blog
2026/04/12 Author: qiao fu shen castingTechnical Team Key Keyword sand casting service:precision casting Process Selection When purchasing managers receive the engineer’s drawings, the first question they often ask is: “precision castingShould I use this partsand casting service?” This seemingly simple question has implications for the entire supply chain in terms of lead time, quality, and cost structure. precision casting lost wax casting(High precision is known for its low post-processing capabilities; sand casting servicewhile large-scale parts, multi-variety, small-batch production, and rapid prototyping have an inherent advantage.) However, these two processes are not “good or bad”; they are “suited to the context.” This article will help you make the right process decision before asking for a quote by addressing four dimensions: precision requirements, post-processing needs, cost structure, and batch logic. This will help you avoid rework, delays, and additional costs caused by choosing the wrong process....
by Bonnie | Sep 22, 2026 | Blog
2026/03/18 In the spirit of "making things" in Japanese manufacturing, castings are not just raw materials; they are the core starting point for determining machine precision, durability, and post-processing efficiency. Starting from the quality requirements of the Japanese market, this article analyzes the technological milestones of resin sand and shell membrane casting, and qiao fu shenhow vertical integration and engineering collaboration have become the trusted overseas partners for Japanese companies. Key Topics Resin sand vs shell membrane casting Target markets Advantages of Japanese OEMs/machine tools/automotive partsqiao fu shen 5kg–5,000kg One-stop integration of steel castings...
