A kind of graphitization method of isostatic graphite product

A technology of graphite products and graphitization, which is applied in the field of graphite material preparation, can solve problems such as improvement of cracks in Acheson graphitization products, achieve the effects of increasing product quality, reducing the occurrence of transverse cracks, and improving product quality

Active Publication Date: 2016-08-24
丰镇市宏升炭素有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned method does not improve how the Acheson graphitization method reduces product cracks. In view of this, the present invention is proposed

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of graphitization method of isostatic graphite product
  • A kind of graphitization method of isostatic graphite product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] 1) Clean up the graphitization furnace;

[0053] 2) On the bottom of the furnace body of the cleaned graphitization furnace, lay flat and compacted quartz sand with a thickness of 500 mm; , the thickness is 400mm;

[0054] 3) Then pave and compact the metallurgical material obtained by uniformly mixing cooked metallurgical coke and raw metallurgical coke in a mass ratio of 7:3; then pave and compact new coke powder and quartz sand in a mass ratio of 5.5:4.5 The reaction material obtained by mixing uniformly; wherein, the particle size of the cooked metallurgical coke is 10-40mm, and its particle size distribution is: 10% by mass of the particle size of 10-15mm, 10% by mass of 35-40mm, and the balance It is cooked metallurgical coke with a particle size of 15-35mm;

[0055] 4) Make the same cross-section of the same specification as 1800cm 2 The product is placed in the furnace, which is symmetrical to the furnace core, and a 30mm gap is reserved between the products ...

Embodiment 2

[0062] 1) Clean up the graphitization furnace;

[0063] 2) On the bottom of the furnace body of the cleaned graphitization furnace, lay flat and compacted quartz sand with a thickness of 500 mm; , the thickness is 400mm;

[0064] 3) Then pave and compact the metallurgical material obtained by uniformly mixing cooked metallurgical coke and raw metallurgical coke in a mass ratio of 6:4; then pave and compact new coke powder and quartz sand in a mass ratio of 5.5:4.5 The reaction material obtained by mixing uniformly; wherein, the particle size of the cooked metallurgical coke is 10-40mm, and its particle size distribution is: 15% by mass of the particle size of 10-15mm, 15% by mass of 35-40mm, and the balance It is cooked metallurgical coke with a particle size of 15-35mm;

[0065] 4) The same section of the same specification is 1500cm 2 The product is placed in the furnace, which is symmetrical to the furnace core, and a 30mm gap is reserved between the products to prepare ...

Embodiment 3

[0072] 1) Clean up the graphitization furnace;

[0073] 2) On the bottom of the furnace body of the cleaned graphitization furnace, lay flat and compacted quartz sand with a thickness of 500 mm; , the thickness is 400mm;

[0074] 3) Then pave and compact the metallurgical material obtained by uniformly mixing cooked metallurgical coke and raw metallurgical coke in a mass ratio of 8:2; then pave and compact new coke powder and quartz sand in a mass ratio of 5.5:4.5 The reaction material obtained by mixing uniformly; wherein, the particle size of the cooked metallurgical coke is 10-40mm, and its particle size distribution is: the mass percentage of the particle size is 10-15mm, 10%, the mass percentage of 35-40mm is 15%, and the balance It is cooked metallurgical coke with a particle size of 15-35mm;

[0075] 4) Make the same cross section of the same specification 1000cm 2 The product is placed in the furnace, which is symmetrical to the furnace core, and a 30mm gap is reser...

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 sizeaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a graphitizing method for an isostatic graphite product. The graphitizing method comprises the following steps: 1) cleaning a graphitizing furnace; 2) paving and compacting quartz sand on the inner bottom of the furnace body, and then paving and compacting an insulating material; 3) then paving and compacting a metallurgical material obtained by mixing mature metallurgical coke and raw metallurgical coke, and paving and compacting a reaction material; 4) adding a product into the furnace; 5) filling the reaction material in the inner top of the furnace body, and filling the insulating material; 6) supply power into the furnace according to a power-supply curve, wherein the power-supply curve is as follows: initial power is 1800KW, and the power is supplied by 140KW / h during 0-12h, the power is supplied by 50KW / h during 13-7h and the power is supplied by 150KW / h during 73-92h; 7) stopping power supply since preset electric quantity is reached; 8) cooling for 6-7d, grasping and removing the insulating material on the upper part of the product, cooling for 11-13d, grasping and removing the reaction material on the upper part; and 9) after completely grasping and removing, taking the product out of the furnace, and inspecting the product.

Description

technical field [0001] The invention belongs to the field of preparation of graphite materials, and in particular relates to a graphitization method of isostatic graphite products. Background technique [0002] Isostatic graphite is a new type of graphite material developed in the 1960s, which has a series of excellent properties. For example, isostatic graphite has good heat resistance. In an inert atmosphere, its mechanical strength not only does not decrease as the temperature increases, but increases, reaching the highest value at about 2500 ° C; compared with ordinary graphite, the structure Fine and dense, and good uniformity; low thermal expansion coefficient, excellent thermal shock resistance; isotropic; strong chemical corrosion resistance, good thermal conductivity and electrical conductivity; excellent machining performance. It is precisely because of this series of excellent properties that isostatic graphite is widely used in the fields of metallurgy, chemistr...

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 Patents(China)
IPC IPC(8): C01B31/04
Inventor 李江张培林赤九林张培模祁进君钱晶荣纪永良
Owner 丰镇市宏升炭素有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap