Device and method for hot molding technology
A thermoforming and process technology, applied in glass forming, glass remolding, manufacturing tools, etc., can solve problems such as increased cost, accelerated oxidation process of forming molds and parts, and reduced service life of forming molds and high-temperature parts , to achieve the effect of improving service life, reducing oxygen content and reducing oxidation
Pending Publication Date: 2018-11-23
秦皇岛博硕光电设备股份有限公司
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Problems solved by technology
[0003] The purpose of the present invention is, aiming at the prior art, when the forming mold enters the furnace cavity, it will carry part of the air, which accelerates the oxidation process of the forming mold and parts at high temperature, reduces the service life of the forming mold and high-temperature parts, and causes Insufficient cost increase, providing a device and method for thermoforming process
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[0026] The present invention will be further described below in conjunction with specific embodiment:
[0027] The present invention adopts the following method to prevent or reduce the oxidation process of the forming mold and parts at high temperature during thermoforming: before the forming mold enters the furnace cavity, the air in the inner cavity of the forming mold is replaced with an inert gas to prevent the forming mold from Oxygen is carried into the furnace cavity, and then the forming mold enters the furnace cavity under the condition of an inert gas atmosphere to ensure that the forming mold is not in contact with the outside air before entering the furnace cavity and during the process of entering the furnace cavity. In addition, the sealed channel also prevents the furnace cavity from contacting with the outside air, and prevents the outside air from entering the furnace cavity when the furnace door is opened. In the present invention, the air in the inner cavit...
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The invention provides a device and method for a hot molding technology, aiming at the disadvantages in the prior art that part of air is carried when a molding mold enters a furnace chamber so that an oxidization process of the molding mold and parts at high temperature is accelerated, the service life of the molding mold and the high-temperature parts is shortened and the cost is increased. Thedevice comprises the furnace chamber, the molding mold, an air displacement device and a mold transferring mechanism, wherein the molding mold is transferred through the mold transferring mechanism; the air displacement device comprises a displacement chamber and a closed channel; the displacement chamber is a sealed chamber with an opening. By adopting the device and method for the hot molding technology, provided by the invention, when the molding mold enters the furnace chamber, no oxygen exits in a mold cavity and the oxygen in the air also cannot enter the furnace chamber, so that the oxygen content in a hot bending furnace chamber and a mold cavity can be greatly reduced, and a condition that the molding mold and the parts are oxidized at high temperature is avoided or greatly reduced, and furthermore, the service life of the molding mold and the parts is prolonged and the production cost is reduced.
Description
technical field [0001] The invention relates to a device and method for thermoforming process. Background technique [0002] At present, most of the domestic 3D curved glass hot bending process, because the temperature is as high as 650~850 ℃ or even higher, so high temperature resistant materials such as graphite are often used to make forming molds; In the forming mold cavity, and then through the transmission mechanism, the forming mold is transferred into the hot bending furnace for hot bending. In order to reduce the oxidation of forming molds and parts under high temperature environment, it is necessary to fill the hot bending furnace with nitrogen with a purity of more than 99.99% as a protective gas, but the air in the forming mold cavity cannot be completely excluded. At this time, the forming mold is continuously input into the furnace cavity, so a large amount of air is continuously introduced into the furnace cavity, which increases the oxygen content in the fur...
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IPC IPC(8): C03B23/03
CPCC03B23/03
Inventor 路百超
Owner 秦皇岛博硕光电设备股份有限公司