non standard fasteners t

Generally USES the stiffener size selection according to table 5: design principles: stress, reduce the wall thickness, improve the strength. Is greater than or equal to 2.5 İL,

Generally USES the stiffener size selection according to table 5: design principles: stress, reduce the wall thickness, improve the strength. Is greater than or equal to 2.5 İL, will reduce the tensile strength, easy to produce porosity, shrinkage cavity. Symmetrical arrangement, uniform wall thickness, to avoid shrinkage porosity. The same as that of material flow, avoid non standard fasteners turbulence. Avoid set any parts on the rib. After the effect of reinforcement is thin wall thickness change, in order to improve the strength and rigidity of the parts, prevent to reduce casting contraction deformation, and avoid the workpiece deformation during ejection from the mould and filling to function when the secondary circuit (metal flow path), the thickness of alloy die casting steel should be less than the thickness of the wall, generally take the place of the thickness of the 2/3 to 3/4. Alloy die casting tended to adopt uniform thin wall, in order to enhance its strength and rigidity, prevent deformation, should not use the way to increase the wall thickness, and should adopt appropriate thin walled stiffeners for this purpose. Reinforcement should be symmetrical layout, uniform thickness, to avoid new metal accumulation. In order to reduce friction, the demoulding reinforcement should be casting Angle.
Alloy die casting machine is the basic equipment for the production of die casting, die casting process of various features are achieved by die casting machine. According to the needs of the die casting technology, it provides the choice favorable conditions of die casting parameters. Die-casting die design is closely related to choose die casting machine, so you must be familiar Steel investment casting with the characteristics of the die casting machine, technical specifications, through the design and calculation, choose suitable die-casting machine, so as to ensure the normal continuity for die casting production and quality of die casting. Now science and technology, mainly introduced the classification of the die casting machine, die casting process and characteristics, basic structure and the structure of die casting machine; Method and introduces the reasonable selection of die casting machine and the related parameters of checking.
A new type of desktop mixer all external components, are made of alloy die-casting forming, including base, support and the shell of the motor. In this design, selection of alloy die casting in addition to the consideration of its excellent mechanical properties, also can reduce along with the vibration of the mixing process. Die casting alloy is suitable for use on the portable machine tool equipment, to reduce the harmful effects of vibration on the operator, a building nailing machine. In the new design, choose two more to replace Stainless steel foundry half alloy die casting parts. Use of alloy vibration damping effect, to reduce the operation when the nail injection rebound after the vibrations from the opponent's attack. This design also saved in the original design for machining and assembly work, make the process simplified.
Alloy die casting technology. The desired location, pouring system, overflowing system especially used on horizontal die casting machine die mold. Usually the center of the mould sleeve should be deviated from L die body center. Spatial location of mold cooling and heating system. Alloy die casting mould structure. Installation guide parts, reset the desired location of the parts and connecting screws, etc. Set the side core pulling mechanism of die-casting die, still need to set aside the side core-pulling mechanism action space.
Mold strength. Set the mould boards for under tensile, bending and compression stress and deformation, affect the size precision of die casting, the thickness of the side wall and bottom of the need to have enough.
Alloy die-casting mould strength calculation: involves the clamping pressure stress, the impact of the high-speed liquid metal flow and filling process of casting the swelling force, mould or die casting in the process of forming technology, from closing to fill the stages and supercharging pressure maintaining, die casting have been the impact of the high pressure deformation. Template deformation of main stress signal, stress deformation is the biggest parts of the cavity wall stripping when tensile stress, etc. But the mold by injection socket screw plug under pressure and main pressure boost the formation of the swelling force, leading to the template and the plate (as shown in figure 7.16 for blind hole type structure, the second board h corresponding parts act as supporting plate). So need to mold the minimum wall thickness t h strength calculation and plate thickness (see table 7-18 19 and table, table 7-7-20), so as to determine the size of Ann is reliable.


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