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Casting process of cylinder body casting with shaft

A casting process and cylinder technology, which is applied in the casting process field of shaft-type cylinder castings, can solve the problems of high production cost, low casting yield, and easy generation of sand holes and pores in castings, so as to reduce production costs and improve casting quality. quality effect

Inactive Publication Date: 2013-12-18
LUOYANG LUOBEI HEAVY IND MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are several problems in this method: 1. Castings are prone to blisters and pores
2. The quality of castings is unstable, and it is difficult to meet the requirements of flaw detection
3. The yield rate of castings is low and the production cost is high

Method used

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  • Casting process of cylinder body casting with shaft
  • Casting process of cylinder body casting with shaft

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Embodiment Construction

[0015] 1. The three-box molding method is adopted, and the small end surface of the shaft head is the top surface, which is used as the parting surface of the upper box. The parting surface of the middle box is set at 600mm above the cylinder body. The upper box is a riser cover box. The middle box is used as a real sample model. The lower box adopts the method of grouping cores.

[0016] 2. Since the core is assembled in the lower box of the casting, the core has a large gas output, so it is necessary to set the lower exhaust layer when making the ground, and at the same time, the inner core also needs to be the lower air passage to avoid air holes on the cylinder body.

[0017] 3. Internal cooling iron setting: In order to ensure the quality of the inner circle of the lower part of the barrel, a circle of inner cooling iron (4) is set to accelerate cooling and reduce the occurrence of shrinkage porosity.

[0018] 4. Setting of feeding slope (5): Since the shaft head part ...

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Abstract

A casting process of a cylinder body casting with a shaft overcomes disadvantages of sand holes, pores, unstable quality, lower finished product rate and higher production cost exiting in a product produced by a conventional casting process. The invention provides the casting process of the cylinder body casting with the shaft, and the casting process effectively reduces appearance of the defects such as the casting sand holes, the pores and the like, meets the inner quality requirements of the casting, improves the casting quality, and reduces the production cost. A three-box modeling method is employed, a small end face of a shaft head is a top surface and used as an upper box parting surface; a middle box parting surface is arranged at a position of 600 mm on a cylinder body; an upper box is a riser cover box, a middle box is a solid sample model, and a lower box adopts a core assembly method.

Description

technical field [0001] The invention belongs to the technical field of casting, in particular to a casting process for a cylindrical casting with a shaft. Background technique [0002] The edge cylinder is an important part of the steel slag processing production line. It cooperates with the related equipment through the front shaft head to transmit the force. Since the shaft head and cylinder body are designed as one, it is very troublesome to replace and repair, so the casting requirements are relatively strict. The barrel material is low-carbon steel, and the casting design must not have any defects such as pores and cracks. The internal quality grade of the shaft head and barrel body design is qualified according to the third grade of JB / T5000.14-2007 standard. Generally, such castings are laid flat, the parting surface is taken in the center, and poured horizontally. Due to the high quality requirements of castings, according to the calculation of the thermal pitch ci...

Claims

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Application Information

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IPC IPC(8): B22C9/22
Inventor 续冰冰
Owner LUOYANG LUOBEI HEAVY IND MACHINERY
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