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Casting method of turbofan

A turbofan and material inspection technology, applied in the casting field of turbofans, can solve the problems of easy floating, scrapping, and inability to fix the core, and achieve the effect of preventing scrapping

Active Publication Date: 2013-11-20
溧阳市双盛机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing casting process has the following problems. The core cannot be fixed and is easy to float, which leads to the scrapping of the whole

Method used

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  • Casting method of turbofan
  • Casting method of turbofan
  • Casting method of turbofan

Examples

Experimental program
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Embodiment Construction

[0015] A turbofan casting method, the process is as follows, material inspection—coated sand production—core making / molding—core setting—box closing—smelting—pouring—opening the box—knocking on the pouring riser—rough throwing—cleaning, polishing— Fine polishing—appearance inspection—oiling—incoming inspection—packing—outgoing warehouse.

[0016] The lower core of the present invention is one of key steps of the present invention, as figure 1 As shown, the No. 3 core 3 is lowered into the lower box 2, and then the No. 2 core 4 and the No. 1 core 5 are lowered in turn, and the No. 2 core 4 is pressed and fixed by the No. 1 core 5. Such a core setting method can make No. 2 core 4 more firmly fixed, and it is not easy to float up after pouring.

[0017] The box closing of the present invention is one of the key steps of the present invention, such as figure 2 As shown, put glue around the lower box 2 and the top of the No. 2 core 4, then cover the upper box 1 to close the box,...

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Abstract

The invention relates to the technical field of turbofan casting and in particular relates to a casting method of a turbofan. The technological process of the casting method comprises the steps of material inspection, production of precoated sand, core producing / modeling, core setting, mould assembling, smelting, pouring, mould disassembling, casting head knocking, coarse polishing, clearing, burnishing, elaborate polishing, appearance inspection, oiling, warehousing inspection, packaging and delivery, wherein in the core setting step, a core III is set into a lower mould firstly, and then a core II and a core I are set into the lower mould sequentially; in the pouring steps, molten iron is poured in a suspended manner through a traveling crane to enter from an upper mould and is poured at the periphery while oppositely poured at two sides, and then exhaust gas is ignited by open fire by a worker. The casting method adopts a flat mould pouring method, and the core head part of the mud core II extends and is pressed and fixed by the mud core I, so that scrap caused by upward floating of the mud cores can be effectively prevented. According to an existing pouring process, the molten iron enters from the periphery, and the top end is open for exhaust, so that the mould filling of the molten iron can be relatively stable and is conducive to exhaust.

Description

technical field [0001] The invention relates to the technical field of turbofan casting, in particular to a turbofan casting method. Background technique [0002] The existing turbofan casting method adopts the positive box pouring process and single-side pouring, but the pouring process is different. The existing turbofan casting method is that the 1# core is placed in the lower box, the 2# core is placed on the 1# core, the 3# core is placed on the 2# core, and the 2# and 3# core heads are pushed to the upper box core head positioning surface. The following problems exist in the existing pouring process, the core cannot be fixed, and it is easy to float up, which leads to the scrapping of the whole. Contents of the invention [0003] In order to overcome the deficiencies of the existing technology, the invention provides a casting method of a turbofan. [0004] The technical solution adopted by the present invention to solve the technical problem is: a casting method o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/10B22C9/24
Inventor 陈黎明
Owner 溧阳市双盛机械制造有限公司
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