Steel strip continuous thermal transfer process and special continuous thermal transfer equipment

Abstract

The invention discloses a steel strip continuous thermal transfer process. The process is characterized in that: under the driving of a tractor, the steel strip continuously advances to sequentially pass a cleaning machine, a powder spraying device and a thermal transfer device, so as to realize the following continuous processing steps: (1) cleaning degreasing treatment is carried out on the steel strip; (2) powder is sprayed onto the surface of the steel strip; (3) the steel strip is heated; (4) thermal transfer is carried out on the steel strip by virtue of thermal transfer paper. The invention also discloses special continuous thermal transfer equipment of the steel strip continuous thermal transfer process. The invention can carry out continuous operation of thermal transfer pre-treatment and thermal transfer on the steel strip, transfer effect is easy to control, and transfer efficiency is greatly improved.

Description

technical field [0001] The invention relates to a printing process of a steel plate strip, in particular to a continuous thermal transfer printing process of a steel plate strip. The invention also relates to the special continuous thermal transfer equipment for this process. Background technique [0002] At present, in order to beautify the steel plate, patterns are usually transferred on the surface of the plate by thermal transfer printing. Vacuum pump to make the silicone skin of the transfer bed tightly pressed against the outside of the transfer paper, so that the transfer paper is close to the surface of the board, and then push the transfer bed into the oven, at a temperature of 180°C-200°C After heating for 3-5 minutes, the pattern on the transfer paper will be transferred to the surface of the board. Such a heat transfer process has at least the following disadvantages: ①The heat transfer operation is discontinuous, requiring manual operation, opening and closing...

AI Technical Summary

Problems solved by technology

Such a heat transfer process has at least the following disadvantages: ①The heat transfer operation is discontinuous, requiring manual operation, opening and closing the frame back and forth, the process is cumbersome, the quality is not guaranteed, and the efficiency is extremely low; ②The heat transfer equipment The normal use of the machine needs to add a sealing device at the opening and closing ends of the upper and lower racks, and the transfer bed is generally large, and the upper and lower racks are frequently opened and closed, the sealing device is very complicated, the sealing effect is poor, and it is easy to run out of air and transfer. Poor print quality

[0003] For this reason, Chinese patent 200720127283.1 discloses a process method for thermal transfer printing of steel plate strips using a nested vacuum transfer bed. The way of operation still fails to solve the technical problems of traditional thermal transfer printing technology, such as cumbersome process, insecure quality and extremely low efficiency

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