Wisdom has two kinds of metal cored wires. One is solid-cored wire and another is powder-cored one. The basic composition of powder-cored wire can be considered as a tubular electrode consists of outer metal sheath and inner powdered materials. The metal sheath can be cobalt, nickel and iron based. Electrical current is conducted by the […]
Customers’ requirements are always variable. This article will help you to understand how to choose right alloy rod grades (typically Co1, 6, 12) in consideration of welding processes (OXY, TIG, ERW) in three main applications (valve, engine valve, saw blade). In order to cater diverse needs of our clients, Wisdom has developed several manufacturing technologies, […]
Wisdom has two primary techniques for manufacturing cobalt base components: casting and powder metallurgy. Powder metallurgy is suitable for small and regular dimension while casting can apply to wider situations. There are generally four kinds of casting processes: investment, sand, resin shell and centrifugal. Investment casting is what we mostly use. Investment casting process uses […]
1. Principles Nickel-Chromium Alloy Coating Nichrome alloys can form dense chromium oxide surface thereby preventing further oxidation of the metal when it is in the process of heating and oxidation, because Ni-Cr alloys will selectively oxidize due to the considerable affinity of chromium and oxygen. The most frequently used materials are NiCr 80/20 and NiCrTi. […]
Since 2008, we have sold 218 sets different kinds of PTA machine including: Long distance valve plate, ring overlay welding machine Short distance valve overlay welding machine(with roll-over table) Automatic double-head Horseshoe valve overlay welding machine Automatic double-head valve ring overlay welding machine Automotive engine valve face welding machine Engine valve stem tip welding machine […]
Generally, the principle for atmospheric corrosion environment is: pH = 7-12 alkaline environment: pure Zn and Zn alloy pH = 4-7 acidic environment: Al and Al alloy pH = 6-8 neutral environment: Zn-Al alloy Regarding the bridge and other large steel structures in the ocean atmosphere, industrial city atmosphere and acid rain environment, it is […]
Wisdom’s hardfacing welding and thermal spraying powder is produced by three typical techniques: gas atomization – gas cooling, gas atomization – water cooling, and water atomization – water cooling. After raw materials having been melt, steel water will enter into atomization procedure that is classified as gas and water. The two types use distinct systems […]
Typical Alloy Grade & Welding Process Wisdom’s Co1, Co12, Fe306, Fe307 rod are widely used in teeth of band saw blade, the rod size is from 2.4 – 6.4 mm. They are commonly used to extend the service life. Welding process includes TIG, OXY-acetylene, ERW and PTA. Frequent Applicable Problems 1. Sparking Reason: Deposit may increase […]
