Manufacturing method for ductile iron base plate
A manufacturing method and technology of backing plate, applied in manufacturing tools, casting molding equipment, casting molds, etc., can solve problems such as hidden safety hazards, impact on casting strength, temperature field distribution, shrinkage, porosity, etc., to improve quality and improve mold filling. Pressure, increase the effect of feeding
Active Publication Date: 2018-01-19
WUHU RUYHOO CASTING
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Problems solved by technology
[0003] In the existing ductile iron backing plate production process, the bottom pouring gating system is used to make the ductile iron backing plate, and the inner gate is directly set on the surface of the "T" groove. During the solidification and cooling process of the casting, due to the uneven distribution of the temperature field It leads to shrinkage and shrinkage defects in the processing of "T" grooves, which affects the strength of castings and has certain safety hazards
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[0025] Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention will be described in further detail, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.
[0026] like figure 1 and figure 2 As shown, the present invention provides a method for manufacturing a ductile iron backing plate, comprising the following steps:
[0027] S1. Model making;
[0028] S2. Put the model into the sand box and fill it with sand for modeling;
[0029] S3, pouring;
[0030] S4, cooling, and taking out the casting.
[0031] Specifically, the ductile iron pad is used to connect the automobile stamping die and the press, and the automobile stamping die is installed on the press through the ductile iron pad. The ductile iron backing plate has a first ...
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The invention discloses a manufacturing method for a ductile iron base plate. The manufacturing method comprises the steps that (1) a mold is manufactured; (2) the mold is placed in a sand box to be filled with sand for modeling; (3) pouring is conducted; and (4) cooling is conducted, and a casting is taken out. In the step (3), a pouring system is adopted and comprises a sprue, a cross gate and an ingate, and the cross gate is connected with the sprue and the ingate. According to the manufacturing method for the ductile iron base plate, the cross gate is placed on the casting, the cross gatewith the large section is adopted, thus the mold-filling pressure of the casting can be increased, feeding of the cross gate for the casting is increased, thus the casting has sufficient molten iron for feeding, the defect that cavity and porosity shrinkage occurs to a T-shaped groove of the ductile iron base plate is overcome, and the quality of the ductile iron base plate is improved accordingly.
Description
technical field [0001] The invention belongs to the technical field of solid casting, in particular to a method for manufacturing a ductile iron backing plate. Background technique [0002] When the automobile stamping die is processed, the die needs to be installed on the press. The press controls the die to open and close the die. The automobile stamping die is installed on the press through the backing plate. The backing plate used to connect the automobile stamping die and the press is generally formed by casting. The material of the backing plate is ductile iron, which is called a ductile iron backing plate. There is a T-shaped groove on the top surface of the ductile iron backing plate, which is used to lock the automobile stamping die; the bottom surface of the ductile iron backing plate needs to be machined with a pressing plate groove, which is used to install the backing plate on the press. Since the ductile iron belongs to the mushy solidification, the tendency o...
Claims
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Login to View More IPC IPC(8): B22C9/02B22C9/22B22C9/08C22C38/60C22C38/34C22C38/36C22C38/14C22C38/04
Inventor 左从军徐闯
Owner WUHU RUYHOO CASTING