Tungsten Carbide Ring Rolls for Cold Rolling
What is cold rolling?
Cold rolling is the use of hot rolled steel coils as raw material, after pickling to remove the oxide skin for cold continuous rolling, the finished product is rolled hard coil, due to continuous cold deformation caused by cold hardening of the rolled hard coil strength, hardness, toughness and plasticity indexes, so the stamping performance will deteriorate, can only be used for simple deformation of the parts. Rolled hard coil can be used as raw materials for hot-dip galvanising plant, because hot-dip galvanising units are set up with annealing line. Rolled hard coil weight is generally 6 ~ 13.5 tonnes, steel coil at room temperature, the hot-rolled pickling coil for continuous rolling.
Typical products of carbide tools for cold rolling:
Integral straightening dies, or inlaid tungsten carbide straightening and guide pillar dies.
Traditionally, the original guide rolls and straighteners initially included in new machines for deforming, forming and welding wire for the manufacture of steel structures and electro-welded wire mesh are made of steel. These components suffer a great deal of wear inherent in the process and are therefore ideally suited for replacement with replacement parts made of carbide.
Driven by their customers, welded steel mesh manufacturers and machine builders are increasingly demanding that spare parts be made from hard metal, a material that offers optimum resistance to wear. Components made from carbide have a longer service life than original steel components. Maintenance time and downtime are reduced and the quality of the end product is improved, as dimensions are maintained more uniformly.
SPP Industry Ltd.
In the 1990s, SPP Industry Ltd was one of the first manufacturers to establish CNC machining in China. The company has now established five major machine parks in China, with significant achievements in the areas of 5-axis machining, precision grinding & honing, gear machining, large parts machining, custom tungsten carbide and new material development respectively.