CN102327794A - Cr-free high boron iron-based wear-resisting dual-liquid dual-metal compound hammerhead and manufacturing method thereof - Google Patents
Cr-free high boron iron-based wear-resisting dual-liquid dual-metal compound hammerhead and manufacturing method thereof Download PDFInfo
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- CN102327794A CN102327794A CN201110223207A CN201110223207A CN102327794A CN 102327794 A CN102327794 A CN 102327794A CN 201110223207 A CN201110223207 A CN 201110223207A CN 201110223207 A CN201110223207 A CN 201110223207A CN 102327794 A CN102327794 A CN 102327794A
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- 238000004519 manufacturing process Methods 0.000 title abstract description 8
- 239000007788 liquid Substances 0.000 title abstract description 5
- 241000251131 Sphyrna Species 0.000 title abstract 7
- ZDVYABSQRRRIOJ-UHFFFAOYSA-N boron;iron Chemical compound [Fe]#B ZDVYABSQRRRIOJ-UHFFFAOYSA-N 0.000 title abstract 3
- 229910052796 boron Inorganic materials 0.000 claims abstract description 30
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 13
- 239000010962 carbon steel Substances 0.000 claims abstract description 13
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 13
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 10
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 239000000956 alloy Substances 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 8
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 45
- 239000010959 steel Substances 0.000 claims description 45
- 238000002360 preparation method Methods 0.000 claims description 19
- 238000002844 melting Methods 0.000 claims description 15
- 230000008018 melting Effects 0.000 claims description 15
- 239000002131 composite material Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 11
- 239000002905 metal composite material Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 6
- 239000011574 phosphorus Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 5
- 239000004567 concrete Substances 0.000 claims description 2
- 150000002736 metal compounds Chemical class 0.000 claims description 2
- 239000000161 steel melt Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 abstract 1
- 239000011651 chromium Substances 0.000 description 14
- 238000005266 casting Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 8
- 229910052804 chromium Inorganic materials 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 2
- 229910001037 White iron Inorganic materials 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 241000580063 Ipomopsis rubra Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
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Abstract
The invention relates to a Cr-free high boron iron-based wear-resisting dual-liquid dual-metal compound hammerhead and a manufacturing method thereof, belonging to the technical field of manufacturing of metal wear-resisting materials. In the invention, a Cr-free high boron iron-based wear-resisting alloy is taken as a wear-resisting layer of the hammerhead, carbon steel is taken as a tough layer of a hammer handle, and the wear-resisting layer of the dual-liquid dual-metal compound hammerhead comprises the following chemical components in percentage by weight: 0.3-1.0 percent of C, 1.0-4.5 percent of B, 0.3-0.4 percent of Si, 0.2-0.4 percent of Mn, less than 0.05 percent of S, less than 0.05 percent of P and the balance of Fe. In the method, dual-liquid dual pouring gates are adopted for pouring, the wear-resisting layer of the hammerhead is poured firstly, the tough layer of the hammer handle is poured secondly, and the size ratio of the hammerhead to the hammer handle is controlled through an overflow port. The dual-metal compound hammerhead has high integral associativity, long service life, low production cost and simple process.
Description
Technical field
The present invention relates to double-fluid double metal composite hammer head of high ferro-boron based wear-resistant alloy of a kind of Cr of nothing and carbon steel and preparation method thereof, belong to metal wear resistant material and make the field.
Background technology
Disintegrating machine in the mine, sector application such as metallurgy, cement is extensive, tup is the main wearing piece in the disintegrating machine, consume significant.Along with the price of the alloying element of Cr, Mo, V skyrockets, increased the use cost of tup.
Patent CN86106682A discloses the bimetal composite casting of white cast-iron and cast steel; " castingin " and " biliquid " two kinds of composite casting technology methods have been adopted; Adopt homemade SIV bimetallic to combine the position protective agent, both protected the cleaning under the binding site high temperature, prevent high-temperature oxydation; Can impel the heat exchange of two kinds of materials again, be convenient to bimetallic strong bonded.The integral coherence of the bimetal composite casting of this technology is good, and the part of producing has good wear resistence, hear resistance, corrosion resistance.But as wearing layer, the adding of Cr, Mo, V has increased the cost of composite casting undoubtedly with white cast-iron, along with skyrocketing of these element prices limited it and used widely in wear-resisting field.
Patent CN2657775Y discloses a kind of bimetal composite wear resistant tup, is made up of wearing layer and ductile layers, and wearing layer thickness is the 1/2-2/3 of hammer handle thickness.Wearing layer is main with C, Mn, Cr, elements such as w, and ductile layers is that C, Si, Mn are main component, adopts the biliquid moulding by casting.This tup is compared with the potassium steel tup, and performance has improved 4～6 times, and production technology is simple, but the adding of Cr, Mn has increased the raw-material cost of tup.
Patent CN101239381A provides a kind of manufacturing technique method of double-fluid double metal composite casting tup.Adopt double teeming injection system, biliquid moulding by casting.Tup is that rich chromium cast iron, hammer handle are normal steel casting or low-alloy steel, has embodied the wearability of tup and the toughness of hammer handle, increases the service life of tup.But tup is a rich chromium cast iron, and Cr content is high, has increased cost equally.
It is thus clear that, the wear-resisting part of bimetallic composite hammer head all be with Cr be added to the basis, production cost is higher, the market competitiveness a little less than.Do not add Cr, in ordinary carbon steel, add B and can obtain better, the lower-cost high-abrasive material of wearability yet.Based on this; Carry out high ferro-boron base alloy and carbon steel double-fluid double metal compound (biliquid is meant that two kinds of metals are all liquid state and pour into a mould); Development cost is cheap, the simple composite hammer head preparation technology of technology; Give full play to the toughness of high ferro-boron base alloy wear-resisting property and carbon steel, increase the tup whole service life.
Summary of the invention
The object of the invention is to disclose a kind of double-fluid double metal composite hammer head and preparation technology thereof, and as tup, carbon steel prepares a kind of cheap double-fluid double metal composite hammer head as hammer handle with the high ferro-boron based wear-resistant alloy of no Cr.
Double-fluid double metal composite hammer head of the present invention is made up of tup and hammer handle, and tup is a wearing layer, and hammer handle is a ductile layers.The material of hammer handle is a carbon steel, and tup adopts the high ferro-boron based wear-resistant alloy of no Cr, and chemical component weight percentage is: C 0.3～1.0%, and B 1.0～4.5%, and Si 0.3～0.4%, and Mn 0.2～0.4%, S＜0.05%, and P＜0.05%, all the other are Fe.
The present invention realizes that the technical scheme that above-mentioned purpose is taked is: pour into a mould the high ferro-boron base tup of no Cr earlier, pour into a mould hammer handle with carbon steel then.The concrete preparation process of the present invention is following:
(1) preparation tup wearing layer: put into the smelting furnace melting with steel scrap; Treat that the molten clear back of molten steel adds ferro-boron and continues melting, control molten steel chemical composition is: C 0.3～1.0%, B 1.0～4.5%, Si 0.3～0.4%, Mn 0.2～0.4%, S＜0.05%, P＜0.05%, all the other are Fe (percentage by weight); Dissolve once more clear after, add molten steel weight 0.1～0.3% Al and carry out deoxidation, coming out of the stove at 1550 ℃～1600 ℃ in the back of skimming, leaves standstill after coming out of the stove and naturally cool to 1450 ℃～1500 ℃, is poured in the sand mold through running channel 5, treat that overfall 3 flows out molten steel after, stop cast;
(2) preparation hammer handle ductile layers: put into the smelting furnace melting as raw material with steel scrap; Control molten steel chemical composition is in the carbon steel phosphorus content is 0.35～0.55% scope; After treating that molten steel melts clearly, the Al that adds molten steel weight 0.1～0.3% carries out deoxidation, comes out of the stove at 1540 ℃～1580 ℃ in the back of skimming; Treat that tup stopping to pour into a mould back 10s～60s at interval, through running channel 4 cast hammer handles 1, after the natural cooled and solidified moulding, obtains the bimetallic composite hammer head.
The control of each constituent content such as said carbon adopts conventional method to carry out.As, the control of carbon content is carried out through the method that adds the pig iron or mild steel.
The present invention compared with prior art has following characteristics:
(1) hammer handle is that carbon steel has good resistance to impact, and tup has good wearability for the high ferro-boron base of no Cr alloy,
Can increase tup service life;
(2) China's boron element reserves are abundant, and are cheap, add element with B as main alloy and prepare wear-resistant hammer head, will reduce cost greatly;
(3) production technology is simple, and is easy to utilize.
Description of drawings
In the accompanying drawing 1,1-hammer handle, 2-tup, 3-overfall, the running channel of 4-hammer handle, the running channel of 5-tup.
The specific embodiment
Embodiment 1:
(1) preparation tup wearing layer: steel scrap is put into the intermediate frequency furnace melting; Treat that the molten clear back of molten steel adds ferro-boron and continues melting; Control molten steel chemical composition is C 0.3%, B 4.5%, Si 0.4%, Mn 0.2%, S 0.03%, and P 0.01%, and all the other are Fe (percentage by weight); After dissolving clearly once more, the Al that adds molten steel weight 0.3% carries out deoxidation, and coming out of the stove at 1600 ℃ in the back of skimming, leaves standstill after coming out of the stove and naturally cool to 1480 ℃; In running channel 5 casting sand moulds, treat that overfall 3 flows out molten steel after, stop cast.
(2) preparation hammer handle ductile layers: steel scrap is put into the intermediate frequency furnace melting as raw material; Detect to find that the molten steel phosphorus content is 0.2%, adding pig iron adjustment carbon content is 0.3%, treat molten steel molten clear after; The Al that adds molten steel weight 0.1% carries out deoxidation, comes out of the stove at 1540 ℃ in the back of skimming; Treat that tup stopping to pour into a mould back 10s at interval, through running channel 4 cast hammer handles 1, after the natural cooled and solidified moulding, obtains the bimetallic composite hammer head.
Embodiment 2:
(1) preparation tup wearing layer: steel scrap is put into the intermediate frequency furnace melting, treat that the molten clear back of molten steel adds ferro-boron and continues melting, the control molten steel composition is C 0.7%, B 2.1%, Si 0.2%, Mn 0.4%, S 0.04%,, all the other are Fe (percentage by weight); After dissolving clearly once more, the Al that adds molten steel 0.2% carries out deoxidation, and coming out of the stove at 1573 ℃ in the back of skimming, leaves standstill after coming out of the stove and naturally cool to 1480 ℃; In running channel 5 casting sand moulds, treat that overfall 3 flows out molten steel after, stop cast.
(2) preparation hammer handle ductile layers: put into the smelting furnace melting with steel scrap as raw material, detecting the molten steel phosphorus content is 0.45%, treat molten steel molten clear after, the Al that adds molten steel weight 0.2% carries out deoxidation, comes out of the stove at 1565 ℃ after skimming; Treat that tup stopping to pour into a mould back 30s at interval, through running channel 4 cast hammer handles 1, after the natural cooled and solidified moulding, obtains the bimetallic composite hammer head.
Embodiment 3:
(1) preparation tup wearing layer: steel scrap is put into the intermediate frequency furnace melting; Treat that the molten clear back of molten steel adds ferro-boron and continues melting; Control molten steel chemical composition is C 1.0%, B 1.0%, Si 0.3%, Mn 0.3%, P 0.02%, and all the other are Fe (percentage by weight); After dissolving clearly once more, the Al that adds molten steel weight 0.1% carries out deoxidation, and coming out of the stove at 1600 ℃ in the back of skimming, leaves standstill after coming out of the stove to 1500 ℃; In running channel 5 casting sand moulds, treat that overfall 3 flows out molten steel after, stop cast.
(2) preparation hammer handle ductile layers: put into smelting furnace with steel scrap as raw material and carry out melting; Detecting the molten steel phosphorus content is 0.7%, and adding mild steel adjustment phosphorus content is 0.55%, treat molten steel molten clear after; The Al that adds molten steel 0.3% carries out deoxidation, comes out of the stove at 1580 ℃ in the back of skimming; Treat that tup stopping to pour into a mould back 60s at interval, through running channel 4 cast hammer handles 1, after the natural cooled and solidified moulding, obtains the bimetallic composite hammer head.
Claims (5)
1. the wear-resisting double-fluid double metal composite hammer head of the high ferro-boron base of no Cr is characterized in that: be made up of hammer hammer handle and tup
Head is a wearing layer, and hammer handle is a ductile layers, and the high ferro-boron based wear-resistant alloy of no Cr is as wearing layer, and carbon steel is a ductile layers.
2. the high ferro-boron base of no Cr according to claim 1 double-fluid double metal Compound wear-resisting hammer; It is characterized in that: the chemical composition and the percentage by weight thereof of the high ferro-boron base of no Cr wearing layer are: C 0.3～1.0%, and B 1.0～4.5%, and Si 0.3～0.4%; Mn 0.2～0.4%; S＜0.05%, P＜0.05%, all the other are Fe.
3. preparation method who does not have the wear-resisting double-fluid double metal composite hammer head of the high ferro-boron base of Cr is characterized in that: the cast tup does not have the high ferro-boron base of Cr wearing layer earlier, pours into a mould hammer handle carbon steel ductile layers again.
4. according to the preparation method of the wear-resisting double-fluid double metal composite hammer head of claims high ferro-boron base of 3 described no Cr, it is characterized in that: concrete preparation process is following:
(1) preparation tup wearing layer: put into the smelting furnace melting with steel scrap; Treat that the molten clear back of molten steel adds ferro-boron and continues melting, the control molten steel composition is: C 0.3～1.0%, B 1.0～4.5%, Si 0.3～0.4%, Mn 0.2～0.4%, S＜0.05%, P＜0.05%, all the other be Fe, dissolve clearly once more after; Add molten steel weight 0.1～0.3% Al and carry out deoxidation; Come out of the stove at 1550 ℃～1600 ℃ after skimming, leave standstill after coming out of the stove and naturally cool to 1450 ℃～1500 ℃, be poured in the sand mold through running channel 5; After treating that overfall 3 flows out molten steel, stop cast;
(2) preparation hammer handle ductile layers: put into the smelting furnace melting as raw material with steel scrap; Control molten steel chemical composition is in the carbon steel phosphorus content is 0.35～0.55% scope; After treating that molten steel melts clearly, the Al that adds molten steel weight 0.1～0.3% carries out deoxidation, comes out of the stove at 1540 ℃～1580 ℃ in the back of skimming; Treat that tup stopping to pour into a mould back 10s～60s at interval, through running channel 4 cast hammer handles 1, after the natural cooled and solidified moulding, obtains the bimetallic composite hammer head.
5. the preparation method of the high ferro-boron base of no Cr according to claim 4 abrasion-proof duplex metal composite hammer head is characterized in that: the tup wearing layer be cast with overfall.
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Cited By (16)
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| CN102581262A (en) * | 2012-03-26 | 2012-07-18 | 哈德托普双金属（宁国）有限公司 | Casting mould and casting method for bimetallic composite hammerhead of crusher |
| CN102601310A (en) * | 2012-03-26 | 2012-07-25 | 哈德托普双金属（宁国）有限公司 | Molding method and molding mould of double-metal compound hammer head for crushing machine |
| CN102847880A (en) * | 2012-09-07 | 2013-01-02 | 杨邦树 | Special material co-casting cast mold and special material co-casting cast production process |
| CN104057066A (en) * | 2014-06-24 | 2014-09-24 | 广东省工业技术研究院(广州有色金属研究院) | Method for manufacturing dual-metal dual-liquid composite hammer head |
| CN104826990A (en) * | 2015-05-04 | 2015-08-12 | 迁安市凯泰泵阀科技有限公司 | Method for casting high-precision liquid-liquid composite hammerhead by using shell mould |
| CN105013703A (en) * | 2015-08-19 | 2015-11-04 | 内蒙古五二特种材料工程技术研究中心 | Bimetal wear-resisting screen sheet on crushing screening machine and manufacturing method of bimetal wear-resisting screen sheet |
| CN105642868A (en) * | 2016-01-06 | 2016-06-08 | 洛阳市致力新材料有限公司 | Method for producing ceramic particle reinforced duplex metal base hammer through sand mold |
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| CN102847880B (en) * | 2012-09-07 | 2015-04-08 | 安岳县金龙机械制造有限公司 | Special material co-casting cast production process |
| CN104057066A (en) * | 2014-06-24 | 2014-09-24 | 广东省工业技术研究院(广州有色金属研究院) | Method for manufacturing dual-metal dual-liquid composite hammer head |
| CN104826990A (en) * | 2015-05-04 | 2015-08-12 | 迁安市凯泰泵阀科技有限公司 | Method for casting high-precision liquid-liquid composite hammerhead by using shell mould |
| CN105013703B (en) * | 2015-08-19 | 2017-03-08 | 内蒙古五二特种材料工程技术研究中心 | A kind of bimetal wear resistant sieve on crushing-screening machine and preparation method thereof |
| CN105013703A (en) * | 2015-08-19 | 2015-11-04 | 内蒙古五二特种材料工程技术研究中心 | Bimetal wear-resisting screen sheet on crushing screening machine and manufacturing method of bimetal wear-resisting screen sheet |
| CN105642868A (en) * | 2016-01-06 | 2016-06-08 | 洛阳市致力新材料有限公司 | Method for producing ceramic particle reinforced duplex metal base hammer through sand mold |
| CN105714182A (en) * | 2016-03-28 | 2016-06-29 | 长兴德田工程机械有限公司 | High-toughness aluminum-contained high boron cast iron and preparation method thereof |
| CN105714182B (en) * | 2016-03-28 | 2017-07-28 | 长兴德田工程机械股份有限公司 | A kind of high tenacity is containing high boron cast iron of aluminium and preparation method thereof |
| CN105772687A (en) * | 2016-04-22 | 2016-07-20 | 湖南湖大三佳车辆技术装备有限公司 | Automobile mold casting compositely casted through cold work die steel and gray iron, pouring system and casting method |
| CN105798271A (en) * | 2016-04-22 | 2016-07-27 | 湖南湖大三佳车辆技术装备有限公司 | Automobile mold casting cast by compounding ductile iron and gray iron, gating system and casting method |
| CN105798273A (en) * | 2016-04-22 | 2016-07-27 | 湖南湖大三佳车辆技术装备有限公司 | Double-liquid compound casting method |
| CN105798235A (en) * | 2016-04-22 | 2016-07-27 | 湖南湖大三佳车辆技术装备有限公司 | Bimetal compound casting pouring system used for automobile mold casting |
| CN105903930A (en) * | 2016-04-22 | 2016-08-31 | 湖南湖大三佳车辆技术装备有限公司 | Double-liquid composite casting method for automobile die casting |
| CN105772686A (en) * | 2016-04-22 | 2016-07-20 | 湖南湖大三佳车辆技术装备有限公司 | Bimetal composite casting pouring system |
| CN105772688A (en) * | 2016-04-22 | 2016-07-20 | 湖南湖大三佳车辆技术装备有限公司 | Automobile mold casting compositely casted through Cr12 type steel and gray iron, pouring system and casting method |
| CN114100779A (en) * | 2021-12-25 | 2022-03-01 | 周铁垒 | Double-liquid casting composite hammer head |
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Application publication date: 20120125 |