The preparation method of the thermal insulation board
A heat-insulating board and heat-removing technology, which is applied in the field of preparation of heat-removing heat-insulating boards, can solve problems such as wide gaps between boards, damaged shapes, and drilled steel, and achieve good thermal insulation performance and improved material utilization.
Active Publication Date: 2017-05-24
INNER MONGOLIA NORTH HEAVY INDS GROUP
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Problems solved by technology
At present, the heat insulation board produced in China cannot realize thermal separation of the heat insulation board and the riser of the steel ingot at about 800°C, and there are often irregular shapes such as missing edges, missing corners, and damage, resulting in wide gaps between the board seams and serious steel drilling.
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[0021] 1) The heat-removable insulation board is divided into two types: hanging plate 2 and inserting plate 1, and the hanging and inserting plates are used together. The tooling for making thermal insulation boards is made of wooden core boxes or metal core boxes. The structure of the core box adopts a shedding structure. The dimensional accuracy of the core box is made according to the first-class model, and the inner surface of the core box is painted with varnish. In order to make the heat insulation board firmly connected and closely matched, the wedge-type hanging plate 2 and the inserting plate 1 are inserted, and the joint surface of the hanging plate 2 and the inserting plate 1 adopts a concave-convex surface to match; Do not make the heat insulation board at the root of the riser too thin to reduce the strength, the angle between the root of the heat insulation board and the horizontal direction is 60 0 ±5 0 ;In order to make the heat insulation board have a good h...
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Abstract
The invention relates to a preparation method of a thermal desorption insulation board and belongs to the field of manufacturing of special steel ingots. The main material of the thermal desorption insulation board comprises the following components in percentage by weight: 70-80% of settling beads and 20-30% of floating beads; based on the total amount of the main material, 2.0-3.0% of cellulose and 20-25% of water glass are added into the prepared main material. The preparation method has the advantages that the source of raw materials for preparing the thermal desorption insulation board is wide; the prepared thermal desorption insulation board is high in strength and refractoriness and good in heat preserving effect; the thermal desorption insulation board is in a special concave-convex connecting and socketing assembling manner, so that the boards are firmly connected with small gaps; after the steel ingot is demoulded, the insulation board can be totally separated from the dead head of the steel ingot, and no impurities exist on the surface of the dead head; the dead head of the steel ingot can be used by 100%.
Description
technical field [0001] The invention relates to a method for preparing a heat-removed heat insulation board, which belongs to the field of manufacturing special steel ingots. Background technique [0002] In order to improve the utilization rate of extruded pipe materials, a new technology of billet making and extrusion without cutting riser is adopted. The core content is that part of the riser is used for punching and shearing end, and part of the riser is used for extrusion forming. Therefore, any steel ingot used for seamless pipe extrusion should ensure that the heat insulation plate at the riser can be separated from the steel ingot when it is thermally detached, so as to improve the utilization rate of the steel ingot material. At present, the thermal insulation panels produced in China cannot realize the thermal separation of the insulation panels and the steel ingot riser at about 800°C, and often have irregular shapes such as missing edges, missing corners, and dam...
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IPC IPC(8): C04B28/26
Inventor 胡永平王亚明石宝凤雷丙旺阎福刘允书闫凤民李广龙陈献刚
Owner INNER MONGOLIA NORTH HEAVY INDS GROUP