Auto Part Mould Manufacturers

5) Mark the cavity height dimension (not required, as needed) and the overall size of the mold. 5) Requirements for test and inspection. Usually the process picture is on the mold assembly drawing. 7) Program all the part numbers in order and fill out the schedule. 4) Anti-oxidation treatment, mold number, lettering, marking, oil seal, storage and other requirements. 4) Outline structure and position of all connectors, positioning and guides. 6) Auxiliary tools (removing tools, correction tools, etc.. under the process diagram. 2) Requirements for the mold assembly process. 8) Mark technical requirements and instructions for use.

The drawing starts with the cavity, and the main view is drawn at the same Auto Part Mould Manufacturers time as the other views. 3) Parting surface and parting mode. (2) Technical requirements of the mold assembly drawing: 1) Performance requirements for certain systems of the mold. (1) The assembly drawing of the mold shall include the following contents: 1) Structure of the mold forming part 2) Structure of the pouring system and the exhaust system. Drawing the assembly structure drawing The total assembly drawing is drawn in a ratio of 1:1. Before drawing the master assembly drawing, the process drawing should be drawn and conformed to the requirements of the parts drawing and process data.

The size guaranteed by the next process shall be marked with the words 'Process Size' in the figure.05 mm, and the size determined by the assembly and the requirement for the size are pointed out. For example, the fitting gap of the bonding surface of the parting surface after the mold is assembled should be no more than the parallelism requirement of the upper and lower sides of the mold of 0. It is best to mark the part number, name, material, material shrinkage rate, drawing ratio, etc.Steps for the mold factory to draw the assembly structure diagram

It is required to draw according to the national drawing standard, but it also requires the combination of factory standards and factory customary methods not specified by the state.). If, after the molding, no other machining is performed except for the repair of the burrs, the process diagram is exactly the same as the workpiece drawing. For example, the assembly requirements for the ejector system and the slider core structure. 3) Mold use, assembly and disassembly methods

Megosztás a facebookon

The metallographic structure and the dimensional stability of the mold can reduce or no longer process the temperature difference, which can ensure the dimensional accuracy and surface roughness of the mold.1 0. Good polishing performance: high quality plastic products, requiring low surface roughness. It is difficult to process after quenching.What are the requirements for materials for plastic mold development? There are many requirements for materials on plastic molds.

The wear resistance of the mold depends on the chemical composition of the steel and the heat treatment hardness, so increasing the hardness of the mold is beneficial to improve its wear resistance. For example, the surface roughness of the injection cavity is less than the level of Ra 0. In order to prolong the service life of the cutting tool, improve the cutting performance and reduce the surface roughness, the hardness of the plastic mold steel must be appropriate. Today we will understand the requirements of plastic molds.. Sufficient surface hardness and wear resistance:

The general hardness of plastic molds is usually below 50-60HRC. After heat treatment, the mold should have sufficient surface hardness to ensure sufficient rigidity of the mold.25, the optical surface requires Ra \u0026lt; 0. Excellent machinability: Most plastic molds require a certain degree of cutting and fitter repair in addition to EMD processing. The mold is subjected to large compressive stress and friction during operation due to the filling and flowing plastic, and the mold is required to maintain the accuracy of its shape and the dimensional accuracy to ensure that the mold has a sufficient service life.

The steel used for this purpose requires less material impurities, finely organized microstructure, no fiber direction, and no pitting or orange peel-like defects in polishing. When the mold is processed and heat treated, the coefficient of linear expansion is small, the heat treatment deformation is small, and the dimensional change rate is small.01 nm, and the cavity must be polished to reduce the surface roughness value. It should be used with good thermal stability. Good thermal stability: The shape of the injection mold parts is often complicated

Megosztás a facebookon