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Preparation process of ceramic roller rod

The invention relates to a technology for a ceramic roller and a preparation process, which is applied in the field of preparation of a ceramic roller, and can solve the problems of small positive extrusion force, deformation of a ceramic roller blank, complex structure, etc., so as to save production costs and facilitate the replacement of parts. , the effect of improving production efficiency

Inactive Publication Date: 2013-01-09
广东金刚新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the fields of daily use, sanitary ware, and magnetic materials, the high-temperature performance of the roller is higher, and the ordinary alumina ceramic roller is difficult to meet the requirements of such occasions, and most of the ordinary alumina ceramics are currently in use. Roller rod, the technology used in this kind of ceramic roller rod is the vacuum extrusion molding process. This process uses ball milling, repeated spiral extrusion mud refining after press filtration, and then vacuum spiral extrusion molding.
This process repeatedly uses a screw extrusion device, which has a complex structure. When the ceramic roller billet is repeatedly extruded through this device, the propeller blades will generate strong friction with the billet, and at the same time generate high temperature, which will easily lead to extrusion. The ceramic roller body is deformed or cracked, which seriously affects the quality of the ceramic roller
Moreover, the forward extrusion force of this device on the billet is small, and the structure of the formed ceramic roller billet tube is not dense enough, and the bulk density is ≤2.4g / cm 3 , the strength of the prepared ceramic roller is low, and it is only suitable for use in occasions that do not require high load

Method used

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  • Preparation process of ceramic roller rod
  • Preparation process of ceramic roller rod
  • Preparation process of ceramic roller rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0349] Weigh 34% clay, 23% aluminum oxide, and 8% zirconium silicate required for the manufacture of ceramic roller blanks, and put the raw materials into a ball mill for ball milling. The ball milling process is 2 hours to obtain a slurry ; Pour the ball-milled slurry into the slurry tank, and use a strong mixer to fully stir to obtain the slurry used to manufacture the ceramic roller billet; transport the preliminary treated slurry to the spray drying tower for spraying Granules are processed to obtain blanks for manufacturing ceramic rollers; 2% of the binder carboxymethyl cellulose is added to the blanks, and water is added after the binder and the blanks are mixed. Stir into mud in a strong mixer, and the moisture of the mud is controlled at 12%; the mud is smelted through a direct-push mud mixer to obtain a mud bar; the mud bar is passed through a direct-push plastic extrusion Extrude and form in the machine to obtain a ceramic roller billet tube with internal support; c...

Embodiment 2

[0351] Weigh 34% clay, 23% aluminum oxide, and 8% zirconium silicate required for the manufacture of ceramic roller blanks, and put the raw materials into a ball mill for ball milling. The ball milling process is 2 hours to obtain a slurry ; Pour the ball-milled slurry into the slurry tank, and use a strong mixer to fully stir to obtain the slurry used to manufacture the ceramic roller billet; transport the preliminary treated slurry to the spray drying tower for spraying Granules are processed to obtain blanks for the manufacture of ceramic rollers; 2% of the binder polyhydroxycellulose is added to the blanks, and water is added after the binder and the blanks are mixed. Stirring into mud in the mixer, the moisture content of the mud is controlled at 12%; the mud is smelted through a direct-push mud mixer to obtain mud bars; the mud bars are extruded through direct-push plastic Extrude in the machine to obtain a ceramic roller billet tube with an internal support; carry out v...

Embodiment 3

[0353] Weigh 36% of clay required for manufacturing ceramic roller rod stock, 29% of aluminum oxide, and 35% of corundum sand, put the raw material into a ball mill and carry out ball milling, and the ball milling process is 2 hours to obtain the slurry; The ball-milled slurry is poured into the slurry tank, fully stirred with a strong mixer to obtain the slurry used to manufacture the ceramic roller billet; the preliminary treated slurry is transported to a spray drying tower for spray granulation treatment , to obtain the blank for making ceramic rollers; 1% of the binder carboxymethylcellulose is added to the blank, and water is added after the binder and the blank are mixed, and the Stirring into mud, the moisture of the mud is controlled at 12%; the mud is smelted through a direct-push mud mixer to obtain a mud bar; the mud bar is passed through a direct-push plastic extruder Extrude and form in the middle to obtain a ceramic roller billet tube with an inner support; carr...

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Abstract

The invention discloses a preparation process of a ceramic roller rod. The preparation process comprises the following steps of: atomizing and prilling on primarily-treated slurry; adding a binder, mixing, then adding water, and mixing in a into pug into a powerful mixer, wherein the water content of the pug is 10-18%; refining the pug through a direct pushing-type pug refining machine, and obtaining pug stripes; enabling the pug stripes to conduct extrusion molding through a direct pushing-type plastic extruder, and obtaining ceramic roller rod blank tubes provided with inner supports; conducting vertical type drying treatment on the ceramic roller rod blank tubes; conducting isostatic cool pressing process treatment on the ceramic roller rod blank tubes at the pressure of 60-300Mpa; and removing the inner supports of the ceramic roller rod blank tubes, putting the ceramic roller rod blank tubes into a kiln, and burning by a hanging and burning mode at the temperature of 1200-1800 DEG C. By means of preparation process, the prepared ceramic roller rod is high in density, high in flexure strength, big in load capacity and good in appearance regulation degree.

Description

technical field [0001] The invention relates to the technical field of processing and manufacturing ceramic rollers, in particular to a preparation process of ceramic rollers. Background technique [0002] As one of the key accessories of the roller kiln, the ceramic roller mainly plays the role of transmission and load bearing. At present, the roller kiln is developing in the direction of ultra-wide and ultra-long, which puts forward higher requirements for the load-bearing and high-temperature performance of ceramic roller rods. In addition, in the fields of daily use, sanitary ware, and magnetic materials, the high-temperature performance of the roller is higher, and the ordinary alumina ceramic roller is difficult to meet the requirements of such occasions, and most of the ordinary alumina ceramics are currently in use. Roller rod, the technology used in this kind of ceramic roller rod is vacuum extrusion molding process. This technology uses ball milling, repeated spir...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B35/10C04B35/622
Inventor 张脉官杨华亮冯斌王志良周天虹
Owner 广东金刚新材料有限公司
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