Casting Process of Coupler Body

Abstract

The invention relates to the field of casting technology, and proposes a coupler body casting process, which includes: processing and manufacturing a metal mold, a sand core box for the internal gear at the tail of the coupler body, and an integral sand core box for the inner cavity of the coupler; using an upper mold and a lower mold respectively Manufacture the upper sand mold and the lower sand mold; respectively use the internal sand core box of the tail of the hook body and the integral sand core box of the inner cavity of the hook body to manufacture the inner sand core of the hook body tail and the integral sand core of the inner cavity of the hook; put the inner sand core box of the hook body tail The core and the integral sand core of the inner cavity of the coupler are put into the upper sand mold and the lower sand mold and combined; the material is smelted and the sand mold is poured; the sand is shaken to obtain the coupler coupler body. During the casting process, due to the existence of the thermal insulation side riser, the thermal joint inside the impact socket can be effectively fed, and the tendency of shrinkage cavity shrinkage in the impact socket is eliminated. The tendency of shrinkage cavity and shrinkage defects under the traction table is eliminated, so as to obtain a high-quality coupler body.

Description

Technical field [0001] The present invention relates to the field of casting techniques, and more particularly to a hook hook bodies casting process. Background technique [0002] The car hook is an important part of the railway locomotive connection and buffer. As the railway single-column load is constantly increasing, the rigidity, strength, quality, capacity and wear resistance of the vehicle hook, the rigidity, quality, capacity and wear resistance are increasing. high. [0003] The existing 102-type hook can meet a variety of locomotive models, wide application range, 102-type cars hook hooks for the key components of the car hook, with a large load and higher frequency impact vibration load during the driving of locomotives, so The quality of the hook hooks must be strictly ensured. Due to the complex head structure of the 102 type cars, the wall thickness changes in the tail, which is easy to generate a shrinkage, declaration defect, and cause a lot of difficulties to the...

AI Technical Summary

Problems solved by technology

Due to the complex structure of the head of the 102 coupler body and the large change in the wall thickness of the tail, shrinkage cavities and shrinkage defects are prone to occur in the casting production process, which causes many difficulties in the casting process design

[0004] Most of the existing technologies are to install internal cooling iron at the position where the hook body is prone to shrinkage and shrinkage. However, since the internal cooling iron cannot be well organically combined with the metal of the hook body during casting, cracks are likely to occur on the cold iron part, and there is a safety hazard. Hidden danger

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