Constant-temperature pressure head of carbon and electrode press

Abstract

The invention discloses a constant-temperature pressure head of a carbon and electrode press and relates to the carbon and electrode press. By using the constant-temperature pressure head, not only the problem of the conglutination between a pressure head and a paste in a back stroke process after finishing pre-pressing and extruding is solved, but also the scratch of the inner wall of a material room matched with a guide sleeve of the pressure head is avoided. The constant-temperature pressure head comprises the pressured head, a pressure plate, the guide sleeve, a small screw, an extrusion ram and a big screw, wherein the guide sleeve outside the pressure head is fixed on the pressured head 1 by the pressure plate and the small screw; and the pressure head is fixed to the extrusion ram by the big screw. The constant temperature pressure head is characterized in that: the end face of the pressure head is provided with a groove; an electric heating tube is arranged in the groove and is compressed by the pressure plate; a sealing ring is arranged between the pressure head and the pressure plate; a first thermoelectric couple and a second thermoelectric couple are arranged in the pressure head; and a first sealing ring and a second sealing ring are arranged between the pressure head and the extrusion ram. The guide sleeve outside the pressure head is of a spheroidal graphite cast iron material and is in clearance fit with the inner wall of the material room.

Description

technical field [0001] The present invention relates to carbon and electrode presses, and in particular to indenters for carbon and electrode presses. Background technique [0002] The pressure head is a very important part in carbon and electrode presses, it directly presses the material paste in the material chamber. Prior art indenters such as image 3 Shown: pressing plate 3 and small screw 6 fix the guide sleeve 5 (made of carbon structural steel material) that cooperates with the inner wall of the material on the pressure head 1, and the large screw 10 fixes the pressure head 1 on the extrusion rod 9. The pressure head of the prior art often encounters the following problems in the extrusion production of carbon and electrodes: [0003] 1. When the pre-pressing and extrusion are completed, there will be adhesion between the pressure head and the paste, which will cause the paste left in the mouth to loosen and cause cracks, which will affect the quality of the extrude...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a constant temperature pressure head for carbon and electrode presses. The inner wall of the material that cooperates with the pressure head guide sleeve is scratched

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