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A kind of lost foam casting processing method of vehicle front panel seat

A technology of lost foam casting and processing method, applied in the direction of manufacturing tools, casting molding equipment, metal processing equipment, etc., can solve the problems of low processing efficiency and high processing labor intensity, reduce production costs, control shrinkage ratio and surface quality, The effect of high production pass rate

Active Publication Date: 2019-11-05
MAANSHAN SANFENG MACHINERY MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the shortcomings of high labor intensity and low processing efficiency in the processing of the vehicle front panel seat in the prior art, and provide a lost foam casting processing method for the vehicle front panel seat. Compared with traditional mechanical processing, It can effectively reduce the processing labor intensity, improve the processing efficiency, and avoid the deformation of the front plate seat structure, ensure the processing accuracy, and effectively improve the pass rate of product processing

Method used

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  • A kind of lost foam casting processing method of vehicle front panel seat
  • A kind of lost foam casting processing method of vehicle front panel seat
  • A kind of lost foam casting processing method of vehicle front panel seat

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Such as Figure 1-Figure 3 Shown is a schematic structural diagram of a vehicle front panel seat in the prior art, the front panel seat includes a base 101, a back panel 102 is provided on one side of the base 101, and four vertical panels are evenly spaced on the base 101 103 is connected to the back plate 102, and the two sides of the back plate 102 are symmetrically provided with fixing holes 104, and the base 101 is provided with a plurality of mounting holes 105 distributed in strips between two adjacent vertical plates 103, and a plurality of The mounting holes 105 are evenly spaced. In practice, the processing accuracy requirements for the mounting holes 105 and the fixing holes 104 are relatively high, especially for multiple closely arranged mounting holes 105, the dimensional processing tolerance is required to be between ±0.5mm, and the surface quality of the hole walls is extremely high. The advanced lost foam casting technology is difficult to accurately c...

Embodiment 2

[0055] The lost foam casting processing method of a vehicle front panel seat in this embodiment is basically the same as in Embodiment 1. Further, the design of the pouring system in this embodiment cannot be ignored, as Figure 4 As shown, the gating system in this embodiment includes a sprue 300, a runner, and a sprue connected in sequence. The sprue is connected to the foam pattern, and the top of the sprue 300 is provided with a sprue whose opening size tapers downward. The spout cup 200, wherein the sprue cup 200 is a non-axisymmetric structure. During pouring, the molten steel is poured from the sprue cup 200, and enters the foam pattern through the sprue 300, the runner and the sprue in turn. The industry usually adopts a conical or funnel-shaped gate with good diversion effect. Cup 200, but in practical application, molten steel is still prone to problems such as impurities and oxidation, and casting defects such as slag inclusions and pores will still be formed in cas...

Embodiment 3

[0059] The lost foam casting processing method of a vehicle front panel seat of this embodiment is basically the same as that of Embodiment 2. Further, the bottom of the sprue 300 in this embodiment is also provided with a filter screen 302 of ceramic material, such as Figure 5 As shown, specifically, the bottom of the sprue 300 is provided with an upper connection section 301 whose opening size gradually expands from top to bottom, and a lower connection section 303 with an opening size that gradually shrinks from top to bottom is provided below the upper connection section 301. 302 is disposed between the upper connection section 301 and the lower connection section 303 . The diameter of the filter screen 302 is at least twice (in this embodiment, twice) the inner diameter of the sprue 300. The filter screen 302 is evenly provided with filter holes, and the diameter of the filter holes is 2-4mm. The spacing (the spacing between the walls of two adjacent filter holes) is 5-6...

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Abstract

The invention discloses a lost foam casting machining method of a vehicle front slave plate base and belongs to the field of pouring machining. The method includes the following steps that firstly, molten steel is smelted, wherein the molten steel is prepared from, by mass, 0.25-0.3% of C, 0.2-0.5% of Si, 0.5-0.9% of Mn, 0.4-0.5% of Ni and 0.3-0.4% of Cu; secondly, a foam mold model and a pouringsystem are manufactured, and the foam mold model is subjected to vibration ramming in a sand box; thirdly, the smelted molten steel is poured, so that the foam mold model in the sand box disappears, and a casting is formed; fourthly, after being cooled, the casting is taken out, and following cleaning is carried out. The defects that in the prior art, the machining labor intensity of the vehicle front slave plate base is high, and the machining efficiency of the vehicle front slave plate base is low are overcome, the machining labor intensity can be effectively reduced, the machining efficiency is improved, structural distortion of the front slave plate base can be avoided, the machining precision is guaranteed, and the machining percent of pass of products is effectively improved.

Description

technical field [0001] The invention relates to the technical field of pouring processing, and more specifically, to a method for processing a lost foam casting of a vehicle front panel seat. Background technique [0002] The front slave plate seat is a part of the vehicle buffer device. It is an important force-bearing part for the traction and braking buffer of the vehicle. Its machining accuracy has a great impact on its performance. At present, mechanical processing is generally used for the processing of the front board seat, but the machining has the disadvantages of low processing precision, high processing labor intensity, and low processing efficiency, and it is difficult to process the front board by using the ordinary lost foam casting process. Due to the structural requirements of the seat, it is prone to structural deformation, and the processing pass rate is low. How to effectively improve the production qualification rate of the front plate base and ensure it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/04C22C38/02C22C38/04C22C38/08C22C38/16B22C7/02C21C7/06
CPCB22C7/023B22C9/046C21C7/06C22C38/02C22C38/04C22C38/08C22C38/16
Inventor 王大志
Owner MAANSHAN SANFENG MACHINERY MFG CO LTD
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