Coating material horizontal continuous casting direct recombination forming apparatus and technology

Abstract

The invention relates to a package material horizontal casting shaping device. Wherein, it comprises core metal temperature-control pot, package metal temperature-control pot, core metal liquid irrigate tube, package metal crystallizer, drawing device, temperature tester, heating element and secondary cooler; and the producing method comprises the temperature of package metal is kept by the package metal temperature-control pot, passing through the package metal thermal-insulated chamber, irrigates into the casting mould formed by crystallizer and irrigate tube to be solidified into package metal tube; the core metal is solidified in the solidified package metal tube, with he package metal tube to form composite cast ingot; the cast ingot via second cooler is cooled and drawn by the drawing device, to be cut by cutter at certain length. The invention has simple process and lower cost, while the interface between package metal and core metal has non oxidization and non pollution.

Description

technical field [0001] The invention belongs to the technical field of continuous casting, and in particular provides a cladding material horizontal continuous casting direct compound forming equipment and process, which is suitable for cladding material whose melting point of cladding layer metal is higher than that of core metal metal melting point . Background technique [0002] With the development of science and technology, metallurgical construction, petrochemical industry, aerospace, transportation, electronic information and other fields have higher and higher requirements for the use of materials. In many cases, it is difficult for a single material to meet the performance requirements of actual use. Combining materials with different properties to improve their comprehensive performance has attracted more and more attention. It is one of the important research and development directions in the field of materials in the 21st century. So far, the methods for combini...

AI Technical Summary

Problems solved by technology

The reverse solidification method (see: Xu Zhongbo, Special Steel, Volume 18 Supplement, p.15) is that the cladding layer metal liquid is attached to the outer surface of the internal solid metal and solidified. This method is beneficial to solidification feeding and rolling of casting rolls, but In order to ensure a good composite of the interface between the coating layer and the master tape, in addition to controlling the key process parameters such as the immersion time of the master tape, the metal overheating degree of the cladding layer, and the original thickness of the master tape, it is also necessary to pretreat the master tape: lye degreasing→ Clean water rinsing → pickling to remove rust → clean water rinsing → dilute hydrochloric acid treatment → flux treatment, if the interface pretreatment effect is not good, or if the interface is oxidized or polluted because it cannot be used immediately after pretreatment, the interface will not be well compounded

The cladding layer continuous casting method (see: Yamamoto Kosei, Japanese Zhao 57-196464 patent) is that the cladding layer metal liquid is attached to the outer surface of the internal solid metal and solidifies. This method is beneficial to the solidification and feeding of the cladding layer metal liquid. In order to ensure The cladding layer and the core material interface are well compounded. In addition to controlling the key process parameters such as pouring temperature, heater power, preheater power, and casting speed, it is also necessary to apply a layer of glass powder coating on the core material to prevent the core material from The material is oxidized during the heating process. If the anti-oxidation effect of the interface is not good, or the coating material cannot completely float when cladding the metal, the interface will not be well compounded.

One-time casting method of multi-layer composite materials (see: Xie Jianxin et al., Multi-layer composite materials one-time casting and forming equipment and technology, Chinese patent: ZL98101042.3), adopts measures such as oxidation protection sleeves, and there is no oxidation on the surface of the continuous casting core material. , No inclusions, no oil pollution, direct continuous casting cladding layer in hot state, but this method is difficult to control the melting point of cladding metal higher than the melting point of core metal metal

One-time casting continuous forming method of cladding material (see: Xie Jianxin, etc., a kind of cladding material one-time casting continuous forming equipment and process, Chinese patent: ZL01109076.6) proposes a method for producing cladding metals with a melting point higher than that of the core metal. A new method of one-time continuous casting of composite materials. This method has a short process, energy saving and low cost, but this method needs to realize continuous production, the crimping mechanism is complex, and requires tall workshops and pits. The equipment is not easy to operate and maintain, and automatic production is realized. Relatively difficult; at the same time, in this method, because the connection mode of the equipment is that the core metal flow guide tube must pass through the cladding layer metal temperature-controlling crucible, when the core metal liquid flows through the high-temperature cladding layer metal liquid temperature-controlling crucible It is difficult to control the temperature when the cladding metal and the core metal are recombined by secondary heating of the cladding layer metal liquid, and it is easy to cause excessive recombination of the cladding layer and the core metal interface (see: Wu Chunjing et al., Special Casting and Nonferrous Metals alloy, No.6(2004), p.11-13), resulting in too thick a composite transition layer or the formation of brittle phases that are not conducive to subsequent processing

These shortcomings are not conducive to the preparation and large-scale industrial application of high-performance composite materials with the melting point of the cladding metal higher than the melting point of the core metal.

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