Injection mould is composed of a blank processing, blank design is reasonable, the process to mold parts processing, all have a great effect on the quality of mold and die life. Mold parts of the blank form consists of:
  1.The section, casting and semi products. Profiles, profile is a profile provided by also into the plants of various section bars, plates and other sections of the. This is a blank mold parts using the largest, after the material sent to the shop after surface processing. The main mode of this kind of material feeding shearing, sawing, grinding wheel cutting, flame cutting, mechanical cutting, breaking, anode mechanical cutting etc..
  2.casting, often used in injection mould casting cast steel, cast iron, cast aluminum parts etc.. The quality requirements of casting include: the shape and size of the casting should be consistent with the requirements of the casting drawing, chemical composition and mechanical properties should be consistent with the requirements. The casting surface should be clean sand processing, and remove the scab, burr, burr, scallop height not more than 3mm. The interior of the casting, especially near the work surface shall not have defects, voids, cracks, porosity, non working surface shall not have serious shrinkage cavity and larger.. For the plastic parts should be timely heat treatment, steel castings to be completely annealing, cast iron to aging, to eliminate internal stress and improve the processing performance.
  3.the forging, forging is the blank shape and size of the profiles obtained by forging method. The aim of forging. Get the geometry and mechanical machining allowance reasonable, save raw materials and reduce mechanical processing workload. Improved metal organization, make the osteoporosis and the bubble is improved, the density is improved, and improve the machining performance. Improving the state of carbide distribution unreasonable material, improve the service life of die material and heat treatment performance. Improving the metal fiber material in the direction of, the distribution more reasonable, can improve the bearing capacity and performance of parts. Metallographic organization needs to obtain discharge processing and heat treatment, improving the processing and heat treatment process of mechanical parts. Forging method. Because the mold production belongs to the single production, may not need not be making die for these parts, so the free forging. There are three main ways: axial forging upsetting and drawing, transverse upset and multi-directional upsetting and stretching. Forging quality requirements. The desired shape, size of forging shall be in accordance with the forging, machining allowance should be consistent with the requirements. Surface crack, forging and folding defects such as decarburization depth, should control in mechanical machining allowance below 1/3. In the forging shall be spheroidizing annealing, to eliminate the flaky carbide forging residual, conducive to the formation of strong toughness and cold, heat process of the ball body tissue. The fiber orientation in the forgings shall be reasonably distributed, the optimum fiber orientation for non directional distribution, can make each direction of quenching deformation of nearly uniform, and the mechanical and wear resistance reached higher level.
  4.semi products. With the mold professional and specialized development, appear in the form of goods, such as plate mold, template parts is increasing, the use of these semi-finished products after processing, can only molding surfaces and associated parts, it can greatly shorten the manufacturing cycle of the mold, the mold parts is the leading direction of blank.