KR19990015973A - Pinch roller manufacturing method for manufacturing trimetal - Google Patents

Abstract

The present invention heat-treated the carbon steel (S45C) or spring steel (SUJ-2) used as the material of the pinch roller in the first, second and third times under a constant temperature and conditions; NC roughing the heat-treated pinch roller material; NC finishing the processed pinch roller material; High frequency processing of the processed pinch roller; Surface polishing the high frequency processed pinch rollers first and second; Performing electric discharge machining on the first and second surface polished pinch rollers; It is a manufacturing method of the pinch roller which manufactures the trimetal which is manufactured by carrying out the buffing process of the discharge-processed pinch roller.

The pinch roller manufacturing method of continuously manufacturing the trimetal of the present invention improves the manufacturing method for the pinch roller that continuously feeds the trimetal, thereby improving the surface roughness of the pinch roller and removing impurities contained in the pinch roller material. It greatly improves the durability of the pinch rollers and prevents the deformation of the trimetal products produced by the pinch rollers so as to obtain excellent trimetal products.

Description

Pinch roller manufacturing method for manufacturing trimetal

The present invention relates to a pinch roller manufacturing method for continuously producing a trimetal, and more particularly, a trimetal which joins by welding by arranging an INVAR plate which is a low expansion material and a sus (SUS) plate material which is a high expansion material side by side. In the pre-feeding system, by improving the manufacturing method of the pinch roller that continuously manufactures the trimetal, the surface roughness of the pinch roller is significantly improved, and the deformation of the trimetal product made of the pinch roller is prevented, and the pinch roller is It relates to a novel pinch roller manufacturing method to improve the durability of the.

In general, trimetals, which are used as basic materials for various home appliances, are processed with an electron beam while processing metals of three different materials with different processing properties to obtain a single trimetal material, which is wound on a winding roll to It is used as a trimetal tape used in electronic products.

Trimetal tape is made by continuously welding three metal bands with different coefficients of thermal expansion at two locations side by side. Especially, when welding high-expansion and low-expansion materials to be attached by welding, they maintain a constant welding state by using an electron beam. The deformation should be minimized.

For example, a shadow mask type color receiving tube includes a shadow mask for screening a color, a frame supporting the periphery of the shadow mask, and springs fixed to the side of the frame. Invar (InVAR) plate and high-expansion SUS plate, which are lined up side by side, are formed by punching the material bonded together by welding. The spring is thermally expanded in the shadow mask by the collision of the electron beam, and each hole of the shadow mask is formed. These are installed to prevent the mutual position of the color mosaic element on the inner surface of the water pipe from changing.

This spring (trimetal) sheet is warped after being welded with an electron beam, or bends like a bow toward the side with less thermal expansion force. To correct this distortion and bending, it is repeatedly repeated many times with the same thing as a rolling roller. There were disadvantages such as incompleteness.

The prior art related to the pinch roller and the system for driving the same as the rolling roller as described above are well described in Korean Utility Model Registration Application No. 95-969.

All existing types of pinch rollers are composed of upper and lower rollers on the forming die, and these upper and lower rollers are installed to adjust the distance of the rollers by the handle wheel.

However, the existing pinch rollers have a disadvantage in that the pinch rollers need to be replaced frequently because the impurity in the pinch roller itself cannot be completely removed because the exact heat treatment technology cannot be developed due to the characteristics of the material. When manufacturing metals, there were disadvantages such as warping or bending of the manufactured metal products.

The present invention was developed to solve the above problems, the method of manufacturing the pinch roller continuously to produce the trimetal of the present invention by improving the manufacturing method for the pinch roller to feed the trimetal continuously By improving the surface roughness and removing impurities contained in the material of the pinch roller, the durability of the pinch roller is greatly improved, and the deformation of the trimetal product produced by the pinch roller is prevented to obtain an excellent trimetal product.

The pinch roller manufacturing method for continuously producing the trimetal of the present invention for achieving the above object is the first pinch of carbon steel (S45C) or spring steel (SUJ-2) as a material of the pinch roller under a constant temperature and conditions, Heat treatment second and third; NC roughing the heat-treated pinch roller material; NC finishing the processed pinch roller material; High frequency processing of the processed pinch roller; Surface polishing the high frequency processed pinch rollers first and second; Performing electric discharge machining on the first and second surface polished pinch rollers; It is manufactured by buffing the discharge-processed pinch roller.

1 is a schematic manufacturing process diagram showing a pinch roller manufacturing method for producing a trimetal showing a preferred embodiment of the present invention.

Figure 1 shows a preferred embodiment of the present invention, a schematic manufacturing process diagram showing a method of manufacturing a pinch roller for producing a trimetal.

Here, the manufacturing method of the pinch roller which feeds trimetal continuously prepares the raw material of a pinch roller first. As the material of the pinch roller, the carbon steel (S45C) or the spring steel (SUJ-2) is heat-treated under a constant temperature and conditions.

As the heat treatment condition, the pinch roller material is cooled by heating at 30 ° C. for 30 minutes as the primary heat treatment condition; Heat-treating the first heat-treated pinch roller material at 120 ° C. for 120 minutes as a secondary heat treatment condition; As a secondary heat treatment condition, the pinch roller material subjected to the secondary heat treatment is heated at 580 ° C. for 120 minutes in the same manner as the secondary heat treatment condition to air-cool to obtain a finished pinch roller material.

And after the pinch roller material is heat-treated, NC pinching of the pinch roller material; NC finishing the processed pinch roller material; High frequency processing of the processed pinch roller; First surface polishing the high frequency processed pinch roller; Second surface polishing of the first surface-polished pinch roller; When the first and second surface polished pinch rollers are subjected to buffing processing through electric discharge machining, all manufacturing processes are completed.

The pinch roller manufacturing method for manufacturing the trimetal of the present invention configured as described above is heat-treated under a constant temperature and conditions of carbon steel (S45C) or spring steel (SUJ-2) used as a pinch roller material; NC roughing the heat-treated pinch roller material; NC finishing the processed pinch roller material; High frequency processing of the processed pinch roller; First surface polishing the high frequency processed pinch roller; Surface polishing is performed secondly; By manufacturing the finished pinch roller by performing buffing process through discharge processing again, it improves the surface roughness of pinch roller and removes impurities contained in the pinch roller material, which greatly improves the durability of pinch roller, and is produced by pinch roller. By preventing deformation of the trimetal product, excellent trimetal product can be obtained.

And when pre-feeding trimetal, it is possible to feed continuously without deformation of trimetal, and the feed speed of pinch roller can be adjusted automatically according to the thickness of trimetal to make uniform trimetal continuously. You can do it.

As described above, the manufacturing method of the pinch roller for manufacturing the trimetal of the present invention is to arrange the invar (INVAR) plate material of low expansion material and sus (SUS) plate material of high expansion material side by side to join by welding and wound on a winding roll In the trimetal manufacturing system to improve the manufacturing method of the pinch roller to feed the trimetal continuously, it is possible to feed continuously without the shape deformation of the trimetal during the prefeeding of the metal, depending on the thickness of the trimetal The feed speed of the pinch rollers can be automatically adjusted to make uniform trimetal continuously.The surface roughness of the pinch roller can be improved and the impurities contained in the pinch roller material can be removed to improve the durability of the pinch roller. It can greatly improve and prevent the deformation of the trimetal products produced by the pinch roller to obtain excellent trimetal products. There are many special advantages, such as being able to.

Claims (2)

Heat-treating carbon steel (S45C) or spring steel (SUJ-2) used as the material of the pinch rollers in a first, second, and third order under a constant temperature and condition; NC roughing the heat-treated pinch roller material; NC finishing the processed pinch roller material; High frequency processing of the processed pinch roller; Surface polishing the high frequency processed pinch rollers first and second; Performing electric discharge machining on the first and second surface polished pinch rollers; A pinch roller manufacturing method for producing a trimetal, characterized in that produced by buffing the discharge-processed pinch roller. The method of claim 1, As the heat treatment conditions of the pinch roller material, the pinch roller material is first heated to 830 ° C. for 30 minutes for oil cooling; The first heat-treated pinch roller material is secondarily heated to 580 ° C. for 120 minutes for air cooling; Method of manufacturing a pinch roller characterized in that the secondary heat-treated pinch roller material is manufactured by heating the third time to 580 ℃ 120 minutes and then air-cooled.