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Integral mold casting method for resin sand of support piece of bulldozer

A technology of oblique supports and bulldozers, applied in casting molding equipment, molds, mold components, etc., can solve problems such as good mechanical properties, and achieve the effects of good mechanical properties, smooth surface, and beautiful appearance

Inactive Publication Date: 2013-11-13
HANCHENG HUATONG MACHINERY
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems existing in the prior art, and provide a resin sand integral mold casting method for bulldozer oblique supports, so as to realize the integral casting of castings at one time, and the cast products have good mechanical properties and are not easy to produce defective products

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  • Integral mold casting method for resin sand of support piece of bulldozer
  • Integral mold casting method for resin sand of support piece of bulldozer

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Embodiment Construction

[0031] When utilizing the method of the present invention to cast bulldozer oblique supports, two integral molds (wherein, one pair of bulldozer left oblique supports and one pair of bulldozer right oblique supports), each pair of integral molds are divided into upper and lower templates. A resin sand integral mold casting method for bulldozer oblique supports according to the present invention:

[0032] Step 1 Make the overall mold:

[0033] According to the shape and size of the oblique support of the bulldozer to be manufactured, two overall models, the upper and lower, are made respectively. The same side of the two overall models has a corresponding sprue model, and the two overall models are respectively fixed on their respective receiving base plates. A plurality of positioning pins are arranged on the corresponding positions of the receiving base plates, thereby constituting the upper and lower templates corresponding to each other of the overall mold of the oblique su...

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Abstract

The invention discloses an integral mold casting method for resin sand of a support piece of a bulldozer. The integral mold casting method comprises the following steps: integral mold manufacturing, sand mixing and moulding, furnace charge smelting, pouring, sand dropping through impacting a box, cleaning and repair welding, and heat processing. Compared with a sectional casting method, the invention provided by the utility model achieves casting formation to castings in one step, greatly simplifies the production procedures, saves labor, material and financial combustions in welding the castings in a partitioned manner, since resin sand used for moulding has the characteristics of high refractoriness, excellent sand producing performance, and accurate moulding size, after the casting temperature is increased and steel liquid is enabled to meet the requirements of mold filling, defects of insufficiency in casting, cold insulation, cracks, burnt-on sand and the like are greatly reduced, smooth surfaces of processed product are ensured, and mechanical performance is excellent.

Description

technical field [0001] The invention belongs to the technical field of mechanical manufacturing, and in particular relates to a resin sand integral mold casting method for a bulldozer oblique support. Background technique [0002] As the main part of the bulldozer, the oblique support of the bulldozer weighs about 200-400Kg, and casting defects are not allowed. The technical requirements and technical problems mainly include: 1. A part of the oblique support of the bulldozer is exposed on the outer surface of the bulldozer, so the The appearance quality, that is, the surface roughness, has higher requirements. 2. The dimensions of castings are large, generally 1800-2200mm in length, 600-900mm in width, and 20-40mm in wall thickness, and they are hollow cylindrical structures with suspended sand cores. Casting defects such as cold shut, cracks, sand sticking in the inner cavity, etc. [0003] At present, the casting of oblique supports of bulldozers mainly adopts the segmen...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/22B22C9/02
Inventor 鱼新民吴增百
Owner HANCHENG HUATONG MACHINERY
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