JPS54115606A - Graphite roll of heat-treating furnace for material attached with basic alkali meatal compound - Google Patents
Graphite roll of heat-treating furnace for material attached with basic alkali meatal compoundInfo
- Publication number
- JPS54115606A JPS54115606A JP8145578A JP8145578A JPS54115606A JP S54115606 A JPS54115606 A JP S54115606A JP 8145578 A JP8145578 A JP 8145578A JP 8145578 A JP8145578 A JP 8145578A JP S54115606 A JPS54115606 A JP S54115606A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- graphite
- heating
- graphite roll
- aluminum phosphate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To provide a graphite roll of long service life which never injures products, and is used for heat treatment of material described in the title at high and in an oxidizing atmosphere. The graphite roll is made by heating a graphite roll having been impregnated with an aq. soln. of aluminum phosphate with specified molar ratio of Al2O32 to P2O5.
CONSTITUTION: The graphite roll of the present invention is made by heating the roll after impregnation in its pore with 20W60 wt. % aq. slon. of aluminum phosphate with molar ratio Al2O3/P2O5 of 1 : 3W6. Heating of the graphite roll impregnated with aluminum phosphate will first remove admixed water, then constitution water from the phosphate, followed by hardening of phosphate and by bridge formation between Al2O3 and P2O5 to produce network structure of Al and P in the pore of the graphite. After heating and hardening, the content of aluminum phosphate becomes 5 wt. % or more. Sliding contact of the roll with silicon steel plate, which is attached with basic alkali metal cpd. such as K2CO3, at high temp. in oxidizing atmosphere attacks scarcely the material being treated.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8145578A JPS54115606A (en) | 1978-07-06 | 1978-07-06 | Graphite roll of heat-treating furnace for material attached with basic alkali meatal compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8145578A JPS54115606A (en) | 1978-07-06 | 1978-07-06 | Graphite roll of heat-treating furnace for material attached with basic alkali meatal compound |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10068473A Division JPS5410961B2 (en) | 1973-09-06 | 1973-09-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54115606A true JPS54115606A (en) | 1979-09-08 |
| JPS5761090B2 JPS5761090B2 (en) | 1982-12-22 |
Family
ID=13746867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8145578A Granted JPS54115606A (en) | 1978-07-06 | 1978-07-06 | Graphite roll of heat-treating furnace for material attached with basic alkali meatal compound |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54115606A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6053991U (en) * | 1983-09-20 | 1985-04-16 | 日新電機株式会社 | door |
| JPS60130989U (en) * | 1984-02-13 | 1985-09-02 | 三和シヤツタ−工業株式会社 | steel door |
| JPH0347112Y2 (en) * | 1984-11-15 | 1991-10-07 |
-
1978
- 1978-07-06 JP JP8145578A patent/JPS54115606A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5761090B2 (en) | 1982-12-22 |
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