CN1022494C - Ball making method of alloy powder material - Google Patents
Ball making method of alloy powder material Download PDFInfo
- Publication number
- CN1022494C CN1022494C CN 90102953 CN90102953A CN1022494C CN 1022494 C CN1022494 C CN 1022494C CN 90102953 CN90102953 CN 90102953 CN 90102953 A CN90102953 A CN 90102953A CN 1022494 C CN1022494 C CN 1022494C
- Authority
- CN
- China
- Prior art keywords
- alloy powder
- powder material
- balls
- ball
- pressed
- 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.)
- Expired - Fee Related
Links
Abstract
The present invention relates to ball manufacture method for alloy powder material. Alpha-Starch and the alloy powder material are mixed and are added in a polyvinyl alcohol water solution to be uniformly stirred, then, materials are pressed into balls by a machine, and after dried, finished products are obtained. After pressed, the pressed balls can be easily demoulded, the wet balls have high intensity, the dried balls have high intensity, and small hygroscopic capacity during storage. After the balls are added into ladle molten steel, the H content in the steel is the same as the H content in the steel in which alloy blocks are added.
Description
A kind of production method that relates to alloy powder material system ball.
In the STEELMAKING PRODUCTION process, briquette ferroalloy dropped into be used in the ladle molten steel carrying out alloying or carrying out deoxidation, but be broken into a large amount of flours of generation, disintegrating slag in the piece process at iron alloy powder, these flours, disintegrating slag should not directly drop in the ladle molten steel, at present, general employing is reclaimed, remelting is handled, and also has to adopt to glue and draws the method for agent system ball to handle these flours and disintegrating slag, English Patent 2098193A report adopts wilkinite and water to come bonding Fe-Si powder and MoO
2Powder, the system ball.The ball intensity that is pressed into is low, and afterwards the ball recovery rate is low, intensity is not high yet to cause oven dry, can not adapt to the needs of transportation, feed bin input.
The objective of the invention is in order to adopt new ball making method to come the bonding alloy powder, the compacting balling-up demoulding is easy, and high wet bulb intensity is arranged, and the ball after the oven dry has high intensity.
The present invention adopts Alpha-starch to mix with the alloy powder, the add-on of Alpha-starch is the 1-5%(Wt% of alloy powder amount), the 0.5-5%(Wt% that adds the alloy powder again) polyvinyl alcohol water solution stirs, through general rolling equipment compacting balling-up, in drying plant, make through 50～160 ℃ of insulations oven dry in 4～0.5 hours.
The present invention prepares the alloy sphere of powder, the demoulding is easy on rolling equipment, ball intensity height after the oven dry, ball with the oven dry of the φ 50mm of certain batch, by Japanese JIS8711-1977 standard test, it is freely fallen on the 30mm Plate Steel, carries out repeatedly four times, measure diameter in the ball and occupy ratio＞90% greater than φ 10mm.The alloy ball of making is exposed to be positioned in the warehouse three months, and the spheroid water content does not obviously increase, and alloy ball is transported to feed bin through belt, drop in the ladle molten steel after, measure and add the identical of bulk alloy the containing of steel (II).
Embodiment:
The 100KgFc-Si powder adds the Alpha-starch mixing of 5Kg, adds proportion 1.02～1.03g/cm again
2Polyvinyl alcohol water solution 2000ml after stirring, is pressed into φ 50mm spheroid on roll squeezer, deliver to process furnace, through 100 ℃ of insulations 2 hours, air cooling.
Claims (1)
1, a kind of method of alloy powder material system ball, it is characterized in that, alloy powder material mixes with Alpha-starch, adds polyvinyl alcohol water solution, and the add-on of Alpha-starch is the 1-5% (Wt%) of alloy powder material, the add-on of polyvinyl alcohol water solution is the 0.5-5% (Wt%) of alloy powder material, stir, through the mechanical compaction balling-up, drying is made, its bake out temperature is 50～160 ℃, and soaking time is 0.5～4 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102953 CN1022494C (en) | 1990-10-10 | 1990-10-10 | Ball making method of alloy powder material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102953 CN1022494C (en) | 1990-10-10 | 1990-10-10 | Ball making method of alloy powder material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1060682A CN1060682A (en) | 1992-04-29 |
| CN1022494C true CN1022494C (en) | 1993-10-20 |
Family
ID=4877826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90102953 Expired - Fee Related CN1022494C (en) | 1990-10-10 | 1990-10-10 | Ball making method of alloy powder material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1022494C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103555934B (en) * | 2013-10-24 | 2015-11-04 | 重庆赛迪热工环保工程技术有限公司 | Polyvinyl alcohol water solution is as the application of dedusting ash cold-pressing balls releasing agent, dedusting ash cold-pressing balls and the method preparing dedusting ash cold-pressing balls |
| CN104451139A (en) * | 2014-12-31 | 2015-03-25 | 安徽工业大学 | Technique for making pellet by means of waste plastic and sheet iron containing oil through low-temperature hot pressing |
| US10503008B2 (en) | 2018-02-28 | 2019-12-10 | Huizhou China Star Optoelectronics Technology Co, Ltd. | Quantum dot (QD) lamps and displays |
| CN111996369A (en) * | 2020-08-28 | 2020-11-27 | 江苏江南铁合金有限公司 | Ferrochromium powder ball for steelmaking and preparation method thereof |
-
1990
- 1990-10-10 CN CN 90102953 patent/CN1022494C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1060682A (en) | 1992-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110270581B (en) | Production process for utilizing waste incineration fly ash by underground cementing filling and resource utilization | |
| SK74994A3 (en) | Method of manufacture of cold pressed briquettes containing iron | |
| CN101736148A (en) | Sintering-pelletizing additive, preparation method and application thereof | |
| CN101302572A (en) | Additive for preparing fine oxide dispersion steel, preparation and use thereof | |
| CN100552053C (en) | The preparation method of fine oxide dispersion steel | |
| CN101302573A (en) | Additive for preparing fine oxide dispersion steel, preparation and use thereof | |
| CN1022494C (en) | Ball making method of alloy powder material | |
| CN102586538A (en) | Vanadium extraction coolant and preparation method thereof | |
| Bizhanov et al. | Blast furnace operation with 100% extruded briquettes charge | |
| US3567811A (en) | Method of producing strong fired compacts from iron or iron oxide containing material | |
| CN1064718C (en) | Vanadium pellet for steel smelting and alloyage process thereof | |
| CN1092242C (en) | Method for smelting ferrocolumbium by two-step electric furnace reduction | |
| JP2001348625A (en) | Method for producing pellet for iron-marking raw material | |
| CN102586537A (en) | Vanadium extraction coolant and its preparation method | |
| CN100552052C (en) | The processing method of preparation fine oxide dispersion steel | |
| CN101775487A (en) | Production method of block material for ironmaking by using ferroalloy mineral powder | |
| CN1070690A (en) | The method of dedusting steel-smelting converter mud balling-up | |
| CN106755980A (en) | Coal-pressing ball and preparation method thereof | |
| CN1225947A (en) | Powder-material block-making method | |
| CN106755710B (en) | A kind of utilization method of converter smelting stainless steel waste-chromium mud | |
| US2790712A (en) | Process for refining iron | |
| CN107937657A (en) | A kind of converter high-efficiency heating agent | |
| CN103627896A (en) | Production method for production of metallurgical dust slime balls | |
| CN1033195A (en) | Cold setting pellets of powdered iron concentrate manufacture method and equipment | |
| CN109437675B (en) | Preparation method of iron oxide skin block for building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI BAO STEEL GROUP IRON AND STEEL CO LTD Free format text: FORMER NAME OR ADDRESS: SHANGHAI BAOSHAN IRON AND STEEL GENERAL PLANT Owner name: BAOSHAN IRON & STEEL CO., LTD. Free format text: FORMER NAME OR ADDRESS: SHANGHAI BAO STEEL GROUP IRON AND STEEL CO LTD |
|
| CP03 | Change of name, title or address |
Address after: 200122 No. 370 Pu circuit, Shanghai, Pudong New Area Patentee after: BAOSHAN IRON & STEEL Co.,Ltd. Address before: 201900 No. 1, Middle Road, Baoshan District, Shanghai Patentee before: BAOSHAN IRON & STEEL CO.,LTD. Address after: 201900, Fujin Road, Shanghai, Baoshan District orchard Patentee after: BAOSHAN IRON & STEEL CO.,LTD. Address before: 200122 No. 370 Pu circuit, Shanghai, Pudong New Area Patentee before: BAOSHAN IRON & STEEL |
|
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |