An electroslag casting method for manufacturing non-common cavity castings with fixed and moving electrodes
A technology of moving electrodes and fixed electrodes, which is applied in the field of casting, can solve the problems that the electrodes are difficult to fill effectively, and achieve the effects of simple shape, stable and convenient melting and casting process, and improved metal utilization rate
Active Publication Date: 2019-11-15
SHENYANG RES INST OF FOUNDRY
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Problems solved by technology
[0005] The purpose of the present invention is to solve the problem that the electrodes are difficult to be effectively filled in the current electroslag casting process of castings, and to provide a process method for the cooperating melting and casting of moving electrodes and fixed electrodes, which completely solves the problem of no common cavity casting, and effectively expands the electroslag casting process. Application fields of slag casting products
Method used
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Embodiment 1
[0032] The martensitic stainless steel blade whose material is 06Cr13Ni4Mo is selected. The three-dimensional outline size of the blade is 500×400×200, the maximum thickness is 80mm, and the minimum thickness is 15mm.
[0033] (1) The fixed electrode 1 and the mobile electrode 2 are prepared by sand casting, and the chemical composition is consistent with the requirements of the casting. Considering that the shape of the blade is a three-dimensional curved surface, the moving electrode 2 is centered. The moving electrode 2 has a rectangular cross-section (100mm×40mm) and a length of 2000mm. The fixed electrode 1 is divided into two lobes along the width direction according to the shape of the blade, and the length of both lobes is 550mm (the effective length is 500mm, and the supplementary head is 50mm). figure 2 It is the location map of electrode and crystallizer cavity.
[0034] (2) The crystallizer 9 adopts a split combined crystallizer welded by copper / steel, and the wi...
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The invention discloses an electroslag smelting and casting method for manufacturing a public-cavity-free casting through fixed and moving electrodes. The electroslag smelting and casting method is characterized in that the fixed electrode, the moving electrode, a crystallizer and an electrode connector are prepared according to the shape, size and components of the casting. The fixed electrode isfixed to the crystallizer through the electrode connector, and the moving electrode is clamped on an electroslag furnace chuck. The problem about a public cavity is solved through the fixed electrode, and the cavity clearance metal amount is supplemented through the moving electrode. According to the electroslag smelting and casting method, the problem that electrode filling is difficult during complex casting electroslag smelting and casting can be solved, and the product categories and the application field of the electroslag smelting and casting method are widened.
Description
technical field [0001] The invention belongs to the field of casting, and in particular provides an electroslag melting casting method for manufacturing castings without a common cavity with fixed and moving electrodes. Background technique [0002] Electroslag casting is a special casting method that integrates melting, refining, solidification and near-final forming, and is one of the important methods for producing high-quality castings. With the continuous development of hydropower, nuclear power, and metallurgical equipment manufacturing industries, the demand for electroslag castings in various countries continues to increase. Electroslag casting is a process of consumables. Conventional electroslag casting requires electrodes to be continuously fed into the mold along the common cavity for melting. For castings with complex shapes, the common cavity is too small to ensure effective mold filling, and some castings have no The common cavity cannot be realized by the co...
Claims
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IPC IPC(8): B22D23/10
CPCB22D23/10
Inventor 李宝东陈瑞熊云龙宋照伟张春铭田雨
Owner SHENYANG RES INST OF FOUNDRY