Unlock instant, AI-driven research and patent intelligence for your innovation.

Graphite crucible repairing paste and graphite crucible repairing method

A technology of graphite crucible and repair paste, which is applied in the directions of non-polymer adhesive additives, adhesive additives, inorganic adhesives, etc., can solve problems such as being unsuitable for repairing graphite crucibles.

Active Publication Date: 2020-12-29
内蒙古斯诺新材料科技有限公司
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a graphite crucible repair paste to solve the problem that the existing graphite crucible repair paste liquid is not suitable for graphite crucible repair

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] According to the graphite crucible to be repaired, polytetrafluoroethylene is used to make the outer diameter mold and the inner diameter mold of the graphite crucible. Preparation of graphite crucible repair paste: Add 22 parts of bisphenol A epoxy resin and 4 parts of curing agent into the mixer, and stir at a speed of 120 rpm for 10 minutes; then add 5 parts of asphalt powder with an average particle size of 0.01mm, Stir at a speed of 30 rpm for 10 min; then add 15 parts of coke powder with an average particle size of 0.1 mm and 35 parts of electrode chips with an average particle size of 0.2 mm, and stir at a slow speed of 30 rpm for 1 hour to finally obtain a repaired graphite crucible paste. Nest the inner diameter mold of the graphite crucible made of polytetrafluoroethylene on the inner surface of the graphite crucible to be repaired, apply the graphite crucible repair paste on the cracked or damaged parts and the outer surface of the graphite crucible, and use ...

Embodiment 2

[0048] According to the graphite crucible to be repaired, polytetrafluoroethylene is used to make the outer diameter mold and the inner diameter mold of the graphite crucible. Preparation of graphite crucible repair paste: Add 27 parts of bisphenol A epoxy resin and 5 parts of curing agent into the mixer, and stir at a speed of 150 rpm for 15 minutes; then add 8 parts of asphalt powder with an average particle size of 0.055 mm, Stir at a speed of 40 rpm for 15 min; then add 20 parts of coke powder with an average particle size of 0.3 mm and 40 parts of electrode chips with an average particle size of 0.6 mm, and stir at a slow speed of 40 rpm for 1.5 hours to finally obtain a repaired graphite crucible paste. Nest the inner diameter mold of the graphite crucible made of polytetrafluoroethylene on the inner surface of the graphite crucible to be repaired, apply the graphite crucible repair paste on the cracked or damaged parts and the outer surface of the graphite crucible, and...

Embodiment 3

[0050] According to the graphite crucible to be repaired, polytetrafluoroethylene is used to make the outer diameter mold and the inner diameter mold of the graphite crucible. Preparation of graphite crucible repair paste: Add 32 parts of bisphenol A epoxy resin and 6 parts of curing agent into the mixer, and stir at a speed of 180 rpm for 20 minutes; then add 10 parts of asphalt powder with an average particle size of 0.1mm, Stir at a speed of 50 rpm for 20 min; then add 25 parts of coke powder with an average particle size of 0.5 mm and 45 parts of electrode scraps with an average particle size of 1 mm, and stir at a slow speed of 50 rpm for 2 hours to finally obtain graphite crucible repair paste . Nest the inner diameter mold of the graphite crucible made of polytetrafluoroethylene on the inner surface of the graphite crucible to be repaired, apply the graphite crucible repair paste on the cracked or damaged parts and the outer surface of the graphite crucible, and use pol...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses graphite crucible repairing paste and a graphite crucible repairing method. The graphite crucible repairing paste is prepared from the following raw materials in parts by weight: 35-45 parts of crushed electrodes, 15-25 parts of coke powder, 5-10 parts of asphalt powder, 22-32 parts of bisphenol A epoxy resin and 4-6 parts of a curing agent. The graphite crucible repairingpaste provided by the invention is suitable for repairing a graphite crucible, can better repair the damaged graphite crucible, and is lower in cost.

Description

technical field [0001] The invention relates to the technical field of graphite, in particular to a graphite crucible repair paste and a graphite crucible repair method. Background technique [0002] Graphite crucibles are usually in a high-temperature environment during actual use, and sometimes the temperature can reach about 3000 °C. The high temperature reduces the strength of the graphite crucible and makes the structure loose, which in turn leads to cracks or damage to the graphite crucible. In addition, when using Acheson furnace (Acheson furnace) to graphitize the negative electrode material of lithium ion battery, the crucible is subjected to external force when it is loaded into the furnace, and it is easy to cause damage to the graphite crucible. Cracked or damaged graphite crucibles cannot be used any longer, and are usually scrapped and replaced with new crucibles, resulting in high cost of use. In order to increase the use times of graphite crucibles, it is a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09J1/00C09J11/04C09J11/08
CPCC09J1/00C09J11/04C09J11/08
Inventor 杨建锋朱周生李林艳孙慧云
Owner 内蒙古斯诺新材料科技有限公司