Method for casting lead screw sleeve type casts

A technology for screw sleeves and castings, which is applied in the field of castings, can solve the problems of high recycled sand reduction, low process yield, and poor gas outlet of molding sand, so as to shorten core-making time, reduce repeated work, and reduce consumption. The effect of the amount of sand

Active Publication Date: 2014-07-23
KOCEL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high sand-iron ratio and low process yield, the production cost is too high and the production efficiency is also low
At the same time, limited by the sand box and the amount of sand to be eaten, the air out of the molding sand is not smooth, and the resin in the molding sand is difficult to burn completely, resulting in a high amount of reclaimed sand, resulting in more choking holes in the product and poor product quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] A casting method for lead screw sleeve castings, which comprises the following steps:

[0027] a. Determine the parting surface: the flange passing through the axis of the cylindrical shell is a symmetrical parting surface;

[0028] b. Make sand core: Make 5 core boxes, 5 core boxes are NO.1# to form the inner cavity of the casting, NO.2# to form the end empty knife, NO.3# to form the lower box, and NO.4# to form the upper box Box, NO.5# forms a cover;

[0029] c. Make the mold: the mold is made of red pine wood, the core box mouth is flat, and a reinforced steel plate or epoxy plate is installed on the core box mouth, and the core box is clamped with a screw;

[0030] d. Core making: Use furan no-hardening resin sand to make the core, place an exhaust channel in the core, and the exhaust channel extends 2-3mm outside the core head;

[0031] e. Core assembly: The sequence of core assembly is NO.3# lower box core——NO.1# inner cavity core——NO.2# end empty knife sand cor...

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Abstract

The invention relates to a method for casting casts, in particular to a method for casting lead screw sleeve type casts. The method comprises the following steps: defining a parting surface, manufacturing a sand core, a mold and a core, assembling the cores, pouring and carrying out mold dismantling. The method has the advantages that the technology is unique; and the advantages of flaskless molding, overlapped core molding and core molding are integrated, so that more casts can be cast at one time, the sand metal ratio is reduced, and the technical yield is improved.

Description

technical field [0001] The invention relates to a casting method of castings, in particular to a casting method of lead screw sleeve castings. Background technique [0002] Screw sleeve castings for machine tools have the following common features: 1. The middle part of the casting is a cylindrical shell; 2. Both ends of the casting are regular multi-deformation or closed-loop curved plane flanges; 3. The surface of the cylindrical shell in the middle of the casting has 1 or 2 transparent doors (that is, holes connected to the inner cavity through which the naked eye can see the inner cavity structure, and its outline shape can have various forms, generally rectangular and circular; 4. One side or two sides There is a circular transparent door on the side flange; 5. The weight is less than 50Kg. [0003] In the prior art, sand boxes are mostly used for production, and the casting mold is composed of upper and lower sand boxes, and the castings are distributed on the formwor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/10B22C9/22B22D25/02
Inventor 王永宏程行东曲泽茂王蒙张红坎安少妮
Owner KOCEL EQUIP
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