CN107914016A - A kind of production method of molybdenum bar - Google Patents
A kind of production method of molybdenum bar Download PDFInfo
- Publication number
- CN107914016A CN107914016A CN201711090880.6A CN201711090880A CN107914016A CN 107914016 A CN107914016 A CN 107914016A CN 201711090880 A CN201711090880 A CN 201711090880A CN 107914016 A CN107914016 A CN 107914016A
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- CN
- China
- Prior art keywords
- intermediate frequency
- molybdenum bar
- frequency furnace
- furnace
- molybdenum
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2201/00—Treatment under specific atmosphere
- B22F2201/01—Reducing atmosphere
- B22F2201/013—Hydrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention discloses a kind of production method of molybdenum bar, specifically implement according to following steps：Step 1, molybdenum powder is pressed into molybdenum bar, then molybdenum bar is sent into intermediate frequency furnace；Step 2, intermediate frequency furnace is heated to 550 DEG C 650 DEG C from room temperature, leads to hydrogen, insulation；Step 3, continue the furnace temperature of intermediate frequency furnace being raised to 1500 DEG C 1600 DEG C, insulation；Step 4, continue the furnace temperature of intermediate frequency furnace being raised to 1800 DEG C 1850 DEG C, insulation；Step 5, when the furnace temperature of intermediate frequency furnace being dropped to 50 DEG C 60 DEG C, open intermediate frequency furnace and carry out discharging operation, most molybdenum bar sintering is completed at last.The advantages of the method for the present invention is：Production capacity output is high, intermediate frequency furnace sintering, per the sinterable 1 ton of forging rolling molybdenum bar of heat；Cost reduction, reduces the consumption of the standby redundancies, auxiliary material such as Muffle furnace boiler tube, stove silk completely.
Description
Technical field
The invention belongs to molybdenum bar manufacture method technical field, and in particular to a kind of production method of molybdenum bar.
Background technology
The mode of production of forging rolling molybdenum bar is that molybdenum powder is compressing using 500 tons of hydraulic presses, is then carried out using Muffle furnace
Sintering, finally forms, and traditional production method is there are many shortcomings, for example, production capacity output is low：Due to the limit of sintering processing
Fixed, when forging rolling molybdenum bar every 1.5 is small into stove sintering once, each 25kg, such 1 ton of forging rolling molybdenum bar needs 60 hours to sinter
Complete；Cost consumption is big.
The content of the invention
The object of the present invention is to provide a kind of production method of molybdenum bar, can reduce production cost, improves molybdenum bar yield.
The technical solution adopted in the present invention is：A kind of production method of molybdenum bar, specifically implements according to following steps：
Step 1, molybdenum powder is pressed into molybdenum bar, then molybdenum bar is sent into intermediate frequency furnace；
Step 2, intermediate frequency furnace is heated to 550 DEG C -650 DEG C from room temperature, leads to hydrogen, insulation；
Step 3, continue the furnace temperature of intermediate frequency furnace being raised to 1500 DEG C -1600 DEG C, insulation；
Step 4, continue the furnace temperature of intermediate frequency furnace being raised to 1800 DEG C -1850 DEG C, insulation；
Step 5, when the furnace temperature of intermediate frequency furnace being dropped to 50 DEG C -60 DEG C, open intermediate frequency furnace and carry out discharging operation, most molybdenum bar at last
Sintering is completed.
The features of the present invention also resides in：
The model GSJ22-450-2.5 of intermediate frequency furnace in step 2.
The flow of hydrogen is 6m in step 23/h-8m3/h。
In step 2 soaking time for 1 it is small when -1.5 it is small when.
In step 3 soaking time for 1 it is small when -1.5 it is small when.
In step 3 soaking time for 2 it is small when -3 it is small when.
A kind of beneficial effect of production method of molybdenum bar of the present invention is：
(1) production capacity output is high, intermediate frequency furnace sintering, per the sinterable 1 ton of forging rolling molybdenum bar of heat；
(2) cost reduction, reduces the consumption of the standby redundancies, auxiliary material such as Muffle furnace boiler tube, stove silk completely.
Embodiment
The present invention is described in further detail with reference to embodiment：
A kind of production method of molybdenum bar of the present invention, it is characterised in that specifically implement according to following steps：
Step 1, molybdenum powder is pressed into molybdenum bar, then molybdenum bar is sent into intermediate frequency furnace；
Step 2, intermediate frequency furnace is heated to 550 DEG C -650 DEG C from room temperature, leads to hydrogen, insulation；Wherein, the model of intermediate frequency furnace
GSJ22-450-2.5, the flow of hydrogen is 6m3/h-8m3/ h, soaking time for 1 it is small when -1.5 it is small when；
Step 3, continue the furnace temperature of intermediate frequency furnace being raised to 1500 DEG C -1600 DEG C, insulation；Wherein, when soaking time is 1 small-
1.5 it is small when
Step 4, continue the furnace temperature of intermediate frequency furnace being raised to 1800 DEG C -1850 DEG C, insulation；Wherein, -3 when soaking time is 2 small
Hour；
Step 5, when the furnace temperature of intermediate frequency furnace being dropped to 50 DEG C -60 DEG C, open intermediate frequency furnace and carry out discharging operation, most molybdenum bar at last
Sintering is completed.
Embodiment
First, it is as follows using GSJ22-450-2.5 type intermediate frequency furnace sintering process：
When total ascent time 10.5 is small.
2nd, the effect that the production method reaches
1. production capacity output is high：Intermediate frequency furnace sinters, per the sinterable 1 ton of forging rolling molybdenum bar of heat.
2. cost reduction：
Cost consumption is as follows in the sintering process of 1 ton of forging rolling molybdenum bar of new process：
1) electricity is consumed:2500 degree；
2) hydrogen is consumed:8m3/ h*10.5h=84m3；
3) it is not required to additionally manually, discharge the amount of labour of 28 shifts of people completely；
4) consumption of the standby redundancies, auxiliary material such as Muffle furnace boiler tube, stove silk is reduced completely；
5) consumption of Spare Parts auxiliary material is not included, new forging rolling molybdenum bar sintering cost per ton is about：2500*0.9+84*
It is 1.6=2384 first.
Only the 36% of old technology cost.
3rd, single ton of forging rolling molybdenum bar Energy Consumption Cost contrast table in sintering process：
Remarks：This table only includes the energy involved in sintering production and labour cost, does not include each equipment itself
Loss and spare part, auxiliary material consumption.
The advantages of the method for the present invention is：
(1) production capacity output is high, intermediate frequency furnace sintering, per the sinterable 1 ton of forging rolling molybdenum bar of heat；
(2) cost reduction, reduces the consumption of the standby redundancies, auxiliary material such as Muffle furnace boiler tube, stove silk completely.
Claims (6)
1. a kind of production method of molybdenum bar, it is characterised in that specifically implement according to following steps：
Step 1, molybdenum powder is pressed into molybdenum bar, then molybdenum bar is sent into intermediate frequency furnace；
Step 2, intermediate frequency furnace is heated to 550 DEG C -650 DEG C from room temperature, leads to hydrogen, insulation；
Step 3, continue the furnace temperature of intermediate frequency furnace being raised to 1500 DEG C -1600 DEG C, insulation；
Step 4, continue the furnace temperature of intermediate frequency furnace being raised to 1800 DEG C -1850 DEG C, insulation；
Step 5, when the furnace temperature of intermediate frequency furnace being dropped to 50 DEG C -60 DEG C, open intermediate frequency furnace and carry out discharging operation, most molybdenum bar sinters at last
Complete.
A kind of 2. production method of molybdenum bar according to claim 1, it is characterised in that the model of intermediate frequency furnace in step 2
GSJ22-450-2.5。
3. the production method of a kind of molybdenum bar according to claim 1, it is characterised in that the flow of hydrogen is 6m in step 23/
h-8m3/h。
4. the production method of a kind of molybdenum bar according to claim 1, it is characterised in that soaking time is small for 1 in step 2
When -1.5 it is small when.
5. the production method of a kind of molybdenum bar according to claim 1, it is characterised in that soaking time is small for 1 in step 3
When -1.5 it is small when.
6. the production method of a kind of molybdenum bar according to claim 1, it is characterised in that soaking time is small for 2 in step 4
When -3 it is small when.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711090880.6A CN107914016B (en) | 2017-11-08 | 2017-11-08 | Production method of molybdenum strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711090880.6A CN107914016B (en) | 2017-11-08 | 2017-11-08 | Production method of molybdenum strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107914016A true CN107914016A (en) | 2018-04-17 |
| CN107914016B CN107914016B (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711090880.6A Active CN107914016B (en) | 2017-11-08 | 2017-11-08 | Production method of molybdenum strip |
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| CN (1) | CN107914016B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108546840A (en) * | 2018-05-11 | 2018-09-18 | 成都联虹钼业有限公司 | A kind of preparation method for the molybdenum base being used to prepare metal molybdenum filament |
| CN108543947A (en) * | 2018-05-11 | 2018-09-18 | 成都联虹钼业有限公司 | A kind of preparation method of molybdenum base |
Citations (6)
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| WO2012026725A2 (en) * | 2010-08-24 | 2012-03-01 | 한국지질자원연구원 | Method of preparing ferromolybdenum alloy briquette from a powder mixture of mill scale and molybdenum oxide powder through a solid-gas reaction, and briquette prepared by the method |
| CN103170621A (en) * | 2013-03-26 | 2013-06-26 | 金堆城钼业股份有限公司 | Preparation method of large molybdenum rod blank |
| CN103203600A (en) * | 2013-04-12 | 2013-07-17 | 金堆城钼业股份有限公司 | Method for producing molybdenum electrode bar by means of precision forging |
| CN103203601A (en) * | 2013-04-12 | 2013-07-17 | 金堆城钼业股份有限公司 | Method for producing molybdenum electrode bar by means of die forging |
| CN203109232U (en) * | 2012-12-25 | 2013-08-07 | 江苏峰峰钨钼制品股份有限公司 | Continuous type multi-tube furnace for pre-sintering molypiece |
| CN104117673A (en) * | 2014-08-14 | 2014-10-29 | 山东华业钨钼股份有限公司 | Method for sintering tungsten blank bars through intermediate frequency furnace |
-
2017
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Patent Citations (6)
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| WO2012026725A2 (en) * | 2010-08-24 | 2012-03-01 | 한국지질자원연구원 | Method of preparing ferromolybdenum alloy briquette from a powder mixture of mill scale and molybdenum oxide powder through a solid-gas reaction, and briquette prepared by the method |
| CN203109232U (en) * | 2012-12-25 | 2013-08-07 | 江苏峰峰钨钼制品股份有限公司 | Continuous type multi-tube furnace for pre-sintering molypiece |
| CN103170621A (en) * | 2013-03-26 | 2013-06-26 | 金堆城钼业股份有限公司 | Preparation method of large molybdenum rod blank |
| CN103203600A (en) * | 2013-04-12 | 2013-07-17 | 金堆城钼业股份有限公司 | Method for producing molybdenum electrode bar by means of precision forging |
| CN103203601A (en) * | 2013-04-12 | 2013-07-17 | 金堆城钼业股份有限公司 | Method for producing molybdenum electrode bar by means of die forging |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108546840A (en) * | 2018-05-11 | 2018-09-18 | 成都联虹钼业有限公司 | A kind of preparation method for the molybdenum base being used to prepare metal molybdenum filament |
| CN108543947A (en) * | 2018-05-11 | 2018-09-18 | 成都联虹钼业有限公司 | A kind of preparation method of molybdenum base |
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| Publication number | Publication date |
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| CN107914016B (en) | 2020-12-15 |
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