Water jacket with weldable steel sheet as outer wall and grey cast iron inwall for heating furnace and technology for making it
A technology of gray cast iron and heating furnace, which is applied in the production of the water jacket and heating equipment components, can solve the problems of short service life, complex production process, high production cost, etc., and achieve saving steel plates, reducing use costs, and significantly The effect of economic and social benefits
Inactive Publication Date: 2002-07-24
刘凤武
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Problems solved by technology
The steel plate welded water jacket has the advantages of convenient processing and beautiful appearance, and can produce a variety of water jackets with reasonable structure, such as tube box type water jackets, etc., but the contact part of the steel plate and pyrotechnics will be damaged first, resulting in a short service life, and Although the cast iron water jacket is resistant to corrosion and has a long service life, due to the special reason that the water jacket is a closed structure, the sleeve core is mostly supported by core cards, the production process is complicated, the production is difficult, and the quality is not easy to guarantee, resulting in high production costs. The inner wall of the water jacket is made of cast iron, and the outer wall is made of steel plate. The mechanical seal connection is difficult.
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[0013] Shown in conjunction with accompanying drawing 1, at first utilize the model of the water jacket inner wall (4) of different shapes and structures produced by the conventional gray cast iron production process, the boss (1) model and each tooling, the sealing plate that will be made with weldable steel plate in advance (2) The limited deformation steel plate (not shown in the figure) whose outer end is fixed with spot welding is placed in the molding sand to complete the molding process; then the gray cast iron molten iron with a controlled pouring humidity of 1350°C-1500°C is used to complete the pouring process and wait for cooling Afterwards, the deformation-limiting steel plate is knocked out, and the sand removal and inspection of the casting are carried out. The outer wall steel plate (3) and the water inlet and outlet (not shown) of the welded water jacket after the sealing plate are reshaped become an integral water jacket (5).
[0014] combine figure 2 As shown...
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A water jacket for the heating furnace is composed of internal wall made of gray cast iron, external wall made of weldable steel plate and sealing plates wrapped by convex rings on the external surface of internal wall, made of weldable steel plate, and welded to external wall. Its advantages are high corrosion resistance, long service life and low cost.
Description
(1) Technical field [0001] The invention relates to a gray cast iron-wrapped weldable steel plate water jacket for a heating stove, which belongs to a heating equipment component. The invention also relates to a manufacturing method of the water jacket. (2) Background technology [0002] A kind of water jacket of heating stove is made of steel plate welding at present, and another kind is cast iron casting molding or simple structure adopts mechanical connection combination, for example the cast iron water jacket that the patent No. is ZL99200366.0. The steel plate welded water jacket has the advantages of convenient processing and beautiful appearance, and can produce a variety of water jackets with reasonable structure, such as tube box type water jackets, etc., but the contact part of the steel plate and pyrotechnics will be damaged first, resulting in a short service life, and Although the cast iron water jacket is resistant to corrosion and has a long service life, due ...
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Inventor 刘凤武王宝林郭喜顺
Owner 刘凤武