CN1248500A - Method for producing refractory material mould by utilizing industrial refuse - Google Patents
Method for producing refractory material mould by utilizing industrial refuse Download PDFInfo
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- CN1248500A CN1248500A CN99115782A CN99115782A CN1248500A CN 1248500 A CN1248500 A CN 1248500A CN 99115782 A CN99115782 A CN 99115782A CN 99115782 A CN99115782 A CN 99115782A CN 1248500 A CN1248500 A CN 1248500A
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- fine fodder
- blank
- industrial refuse
- abrasive dust
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The method for producing refractory die by using industrial garbage includes the following steps: using non-recoverable metal grindings wastes in related industrial production as raw material, at first treating at 300-1300 deg.C to remove nonferrous non-magnetic impurities, using medium-frequency induction furnace or electroslag furnace to melt metal grindings, and making them into blank, then undergoing thermal treatment at 800-1300 deg.C to obtain the required die. Said invention features low cost, long service life, good product quality, high yield, and no flaking.
Description
The invention belongs to the treatment process of a kind of industrial refuse field, particularly a kind of method of producing refractory-material dies with industrial refuse.
Industry goods moulds such as refractory materials, pottery are all handled and are made through gritty carbon by the A3 steel plate basically at present, and its price is at 1.2～1.5 ten thousand yuan/ton.The subject matter that it exists is to wear no resistance, and can not use repeatedly more than three times, frequently changes mould in therefore producing, and has influenced the operational use time of machine.In addition, refractory consumption rate mould per ton is approximately 6～7 kilograms, and the cost of product increases greatly, does not also guarantee the quality of product simultaneously.Yan Zhi steel alloy, die steel mould wear resistance have improved much in recent years, but come off because of falling piece, and cost an arm and a leg (about 180,000 yuan per ton), can not generally promote the use of.Patent application 95113770.0 discloses a kind of manufacture method of wear-resisting refractory-material dies, and is insufficient owing to disclosing, and can't realize its technical purpose.
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of method that irretrievable metal filings rubbish is produced wear-resisting refractory-material dies in the industrial production of utilizing has been proposed, this method has solved the recovery problem of metal filings in the industrial refuse, reduced waste and to the pollution of environment, the mould of being produced has that cost is low, the life-span long, do not fall characteristics such as piece.
The mould that the present invention developed obtains like this, utilizes irretrievable metal filings rubbish in the relevant industrial production (not being car bits or callable waste and old material), carries out drying and roasting and handle under 300 ℃～1300 ℃ temperature, and remove SiO
2Etc. ferromagnetic impurity, obtaining the metal fine fodder makes it contain iron, tungsten, chromium, vanadium, molybdenum, manganese etc., metal fine fodder purity reaches about 95%, utilize medium-frequency induction furnace or electroslag furnace then, fine fodder is melted, once burn according to the refractory-material dies desired shape and to cast blank, under 800 ℃～1300 ℃ temperature, heat-treat then, and be processed into die needed.Its hardness is not less than 62 (HRC), and impact value is greater than 6～7, and core rigidities is stiffer than surperficial difference less than 2.The used industrial refuse of the present invention is meant steel alloy, rapid tool steel abrasive dust rubbish and produces the abrasive dust rubbish that the bearing process is produced.
Below in conjunction with embodiment manufacture method of the present invention is elaborated.
According to the processing requirement of refractory materials moulding, utilize the rapid tool steel abrasive dust to make mould.
At first steel alloy, bearing steel abrasive dust rubbish or rapid tool steel abrasive dust rubbish are carried out quick, static oven dry under 300 ℃～600 ℃ low temperature, remove profit, and guarantee that its surface does not reoxidize, utilize the specific equipment described in the utility model patent (ZL95245558.7) that we apply for again, carry out dry-type separation, get rid of SiO
2, Al
2O
3Obtain fine fodder etc. ferromagnetic impurity.Foreign matter content in the gained fine fodder is less than 5%.
With above-mentioned smart lining (wherein having contained W, Mo, Cr, valuable alloying element such as V), to become consumable electrode not need any mechanical-moulded in roasting under 900 ℃～1300 ℃ temperature and in the reducing atmosphere.Consumable electrode after the roasting has the favorable conductive magnetic diffusivity.These consumable electrodes are exactly the furnace charge of electroslag furnace, and the fusing back flows in the crystallizer of a typing shape, is die blank.
If dissolve with medium-frequency induction furnace and to burn casting,, these block furnace charges are placed in the induction furnace melt, be cast into die blank just the fine fodder roasting is become conduction, magnetic conductive metal piece, (size of piece decide because of the size of induction furnace) of a typing shape.
Above-mentioned blank is at first annealed in 850 ℃～880 ℃ temperature ranges, make its hardness (HRC) value less than 30.
The mold members that processes under 1150 ℃～1200 ℃ conditions, is carried out quench hot, and its time decides with the thickness of template.And in 250 ℃～560 ℃ scopes, carry out tempering, and so that mold members has 60～62 (HRC) hardness value, good impelling strength is arranged in order to guarantee mould, in melting process, add about 0.2% rare earth.
Utilize aforesaid method, carried out tens times test in the laboratory, produced cover surplus the refractory-material dies 10 of different model.Its hardness is at 60～62 (HRC), and impelling strength is at 15～55.5T/cm
2, on probation in units such as Xibei Heat-Resistant Material Factory, effect is satisfied.
The mould that contains multielement that the method for utilizing the present invention to propose produces is characterized in:
(1) cost is low, and its price is 30,000 yuan/tons, is 1/6 of sintered-carbide die.
(2) life-span long because mould has high-wearing feature, compare with present employed converted steel mould, can improve 15～20 times of life-spans.
(3) improve the quality of products, because this mould has machining property well, so favorable quality of finished products.
(4) output height owing to use this mould to reduce the more number of times of mold exchange, has improved availabletime, can improve output about 10%.
Claims (2)
1. produce the method for refractory-material dies with industrial refuse, it is characterized in that, (1) at first steel alloy, bearing steel abrasive dust rubbish or rapid tool steel abrasive dust rubbish are carried out quick, static oven dry under 300 ℃～600 ℃ low temperature, venting profit impurity, and guarantee that its surface does not reoxidize, dry-type separation is got rid of SiO then
2, Al
2O
3Obtain fine fodder etc. non-ferromagnetic impurity; (2) with above-mentioned fine fodder under 900 ℃～1300 ℃ temperature and in the reducing atmosphere roasting become consumable electrode, flow into after the comsumable melt in the crystallizer of a typing shape, obtain die blank; (3) above-mentioned blank is at first annealed in 850 ℃～880 ℃ temperature ranges, make its hardness (HRC) value less than 30; (4) with the mold members that processes after carrying out the quench hot certain hour under 1150 ℃～1200 ℃ conditions, in 250 ℃～560 ℃ scopes, carry out tempering.
2. method according to claim 1 is characterized in that, said fine fodder roasting can be become conduction, the magnetic conductive metal piece of a typing shape, is placed on fusing in the induction furnace then, is cast into die blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99115782A CN1098129C (en) | 1999-05-26 | 1999-05-26 | Method for producing refractory material mould by utilizing industrial refuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99115782A CN1098129C (en) | 1999-05-26 | 1999-05-26 | Method for producing refractory material mould by utilizing industrial refuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1248500A true CN1248500A (en) | 2000-03-29 |
| CN1098129C CN1098129C (en) | 2003-01-08 |
Family
ID=5278695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99115782A Expired - Fee Related CN1098129C (en) | 1999-05-26 | 1999-05-26 | Method for producing refractory material mould by utilizing industrial refuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1098129C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205623A (en) * | 2013-04-15 | 2013-07-17 | 河北钢铁股份有限公司邯郸分公司 | Recycling method of fine powder roller abrasive dust |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1126762A (en) * | 1995-10-31 | 1996-07-17 | 雷积寿 | Method of making wear-resisting refractory-material dies |
-
1999
- 1999-05-26 CN CN99115782A patent/CN1098129C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205623A (en) * | 2013-04-15 | 2013-07-17 | 河北钢铁股份有限公司邯郸分公司 | Recycling method of fine powder roller abrasive dust |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1098129C (en) | 2003-01-08 |
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| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |