CN1049802A - Composite steel-bonded carbidce hammer head and manufacturing process thereof - Google Patents
Composite steel-bonded carbidce hammer head and manufacturing process thereof Download PDFInfo
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- CN1049802A CN1049802A CN 90104778 CN90104778A CN1049802A CN 1049802 A CN1049802 A CN 1049802A CN 90104778 CN90104778 CN 90104778 CN 90104778 A CN90104778 A CN 90104778A CN 1049802 A CN1049802 A CN 1049802A
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Abstract
A kind of tup that uses on hammer mill, mainly form by the Steel Bond Hard Alloy of mother metal and castingin, its mother metal is to add attrition resistant metallic element and trace rare-earth element when the common high mangaenese steel of melting, and Steel Bond Hard Alloy is to be the hard phase with the titanium carbide, and steel is the composition material of bonding phase.Performances such as this tup has the hardness height, and is wear-resisting, corrosion-resistant, anti-oxidant, the castingin conjugation is good, and the tup mean lifetime is more than 4 times of common high mangaenese steel tup, is applicable to the various hammer mills in glasswork, cement mill, sugar refinery, mine.
Description
The invention belongs to hammer head of hammer crusher, particularly castingin has the tup and the manufacturing process thereof of Steel Bond Hard Alloy.
Tup is most principal work part and a consumable accessory on the hammer mill, the general high mangaenese steel ZGM of the general employing of the material of tup at present
n13 make, though the high mangaenese steel cost is not high, hardness is lower, and Brinell hardness HB=191 is easy to wear, and this has just had a strong impact on the result of use and the life-span of tup.Power station, sugar refinery, cement mill adopt hammer mill to pulverize lump coal and grog, and the life-span of tup is generally several weeks, and it is 7 grades feldspar that glassworks is used for broken hardness, and the tup life-span only is 32 hours.Owing to hammer, dress hammer are changed in the frequent shutdown that the wearing and tearing of tup cause; strengthened working strength of workers; the normal operation of hammer mill and the normal performance of work capacity have been influenced; for the life-span that makes tup increases; have during high mangaenese steel the people to add the rare earth element etc. of some antifriction metal (AFM) elemental chromium, nickel, cobalt and trace in casting, but effect also is not very remarkable, it is few that wear rate reduces; and cost sharply rises, thus for a long time tup still to continue to use common high mangaenese steel be main.The production efficiency of the hammer mill that use in glasswork, cement mill etc. is not high.Also the someone developed the castingin Steel Bond Hard Alloy and is used for cutter, impacts workpiece in recent years, adopted M as strain state cemented carbide works
nB and 3OS
iThe steel-bonded carbide of Ti steel castingin GT35, wear resisting property is improved, but because matched performance is good inadequately, the steel-bonded carbide obscission takes place easily, thereby uses also not extensive at present.
The purpose of this invention is to provide a kind of hardness height, physical and chemical performance such as wear-resisting, corrosion-resistant, anti-oxidant is good, and steel-bonded carbide difficult drop-off, the hammer head of hammer crusher that price is not high also proposes the manufacturing process of this tup.
The present invention realizes like this, when casting high mangaenese steel tup mother metal, add some attrition resistant metallic element chromium, magnesium and rare earth etc., to improve the structure of metal, whole mechanical property is improved, tumbling in the steel in the working position of tup is adhesive, with refractory carbide (titanium carbide, wolfram varbide), mainly be the Steel Bond Hard Alloy that titanium carbide is made the hard phase.China's titanium abundant raw material, price are not high, the titanium carbide that sinters into has hardness height, anti-oxidant, corrosion-resistant, wear-resisting, excellent physical chemistry such as Heat stability is good, in tup castingin the Steel Bond Hard Alloy of titanium carbide type, can reduce the adhesion wear of tup on the one hand, have higher rigidity, Young's modulus, bending strength and ultimate compression strength on the other hand.
Castingin Steel Bond Hard Alloy in steel alloy, require mother metal to have certain toughness and intensity, with the matched well of Steel Bond Hard Alloy thermal treatment process and conjugation closely, the one-piece construction that could guarantee casting firmly and demonstrate the characteristic of Steel Bond Hard Alloy, in addition, the technology of castingin and operational condition also can greatly influence the conjugation of mother metal and Steel Bond Hard Alloy.
Describe the present invention below in conjunction with accompanying drawing:
Fig. 1 is the structure iron of composite steel-bonded carbidce hammer head;
Fig. 2 is the flow chart making of composite steel-bonded carbidce hammer head.
In structure iron, the 1st, hammer body, hammer body are the high mangaenese steel that has added elements such as chromium, magnesium, rare earth, the 2nd, the Steel Bond Hard Alloy piece contains elements such as titanium carbide, nickel, molybdenum.
Below be the chemical constitution (weight %) of hammer body:
1, cement mill, sugar refinery or some industries use the grinder hammerhead hammer body to form:
C1.05-1.35, M
n11.50-14.00, Cr1.50-2.50, M
g0.01-0.04, R
e0.002-0.02, S
i≤ 1.00, p≤0.070, all the other are iron.
2, glasswork forms with the grinder hammerhead hammer body:
C1.05-1.35, M
n11.50-14.0, M
g0.01-0.04, R
e0.002-0.02, Si≤1.00, p≤0.070, all the other are iron.
Glasswork can not use the tup that contains chromium, otherwise can influence the optical property of glass finished product.
Add flowability and hot-cracking resistance that rare earth element can improve casting cycle, play the microalloying effect, and the energy degasification removal of impurity, improve structure refinement crystal grain, abrasion resistance is preferably arranged.
Below be the chemical constitution (weight %) of Steel Bond Hard Alloy:
TiC30-60, M
n9-12, Ni0.6-2.0, C0.8-1.4 MO0.6-2.0, F
eSurplus.
Below the manufacturing process of the composite steel-bonded carbidce hammer head of accompanying drawing 2 is described:
Carry out the Steel Bond Hard Alloy of titanium carbide type earlier by general method, Chemical Composition is by the above-mentioned composition that provides, ready-made alloy block will carry out surface inspection to be handled, should flawless, no significant defect, the iron nail of burn-oning in the end of alloy block then, be inserted in to design in the hammer body model and inlay in the position of steel-bonded carbide, mold box is prepared; Press the technology melting mother metal (hammer body) of accompanying drawing, after the check Chemical Composition is qualified, pour in the molding box, be incubated 4-6 hour and unpack, the tup that draws adopts the method for shrend to heat-treat through surface-conditioning, is finishing at last, check, and qualified product can dispatch from the factory.
Embodiments of the invention:
The first step is made the Steel Bond Hard Alloy piece of sintered type, and its composition meets the following requirements:
TiC-50, C-1.0, M
n-0.90, Ni-1.3, MO-1.3, all the other are iron.
The alloy block that sinters is become two blocks of Steel Bond Hard Alloy of 40 * 25 * 15mm after surface treatment.
In second step, ready-made Steel Bond Hard Alloy piece is inlayed mould assembling toward die cavity; The alloy molten steel of method melting hammer body routinely, other chemical constitutions are:
C-1.00, M
n-13.0, Cr-2.0, Si-0.8, p-0.04, Mg-0.02, R
e-0.01, F
eSurplus.
Mother metal (hammer body) alloy molten steel is poured in the casting mold, be incubated 4 hours and unpack;
In the 3rd step, with the casting mold sand removal, surfacing is heat-treated then, and the blank of polishing is at last checked, and promptly obtains studding with the tup finished product of steel-bonded carbide.
The physical and mechanical properties of the tup of making by the above embodiment of the present invention is:
Wimet part: density 6.1 ± 0.1(g/Cm
3), hardness (HRC) 60-62, bending resistance 190(Kg/mm
2), impact 0.81(Kgm/Cm
2),
Mother metal part: tensile strength 650-1000mp
α, percentage of elongation 27-63%, hardness (HB) 170-220.
The present invention uses the key technical indexes in different occasions to compare from common potassium steel manganese head:
1, Sheet Glass Plant crusher in crushing feldspar, feldspar specification 20 * 30,7 grades of hardness.
2, broken lump coal is relatively:
| Working position hardness (HB) | Relative wearing coefficient | The broken coal amount (ton) of single cover tup | The broken coal of tup abrasion loss (gram/T) | Work-ing life (hour) | The life-span ratio | |
| Combined type alloy hammer | 679 | 4.6 | 800 | 1.406 | 820 | 4 |
| Common high mangaenese steel hammer | 191 | 1 | 200 | 7.030 | 200 | 1 |
3, broken cement clinker relatively
| Working position hardness (HB) | Relative wearing coefficient | The broken cement clinker (ton) of single cover tup | The broken cement clinker of tup abrasion loss (gram/T) | Work-ing life (hour) | The life-span ratio | |
| Combined type alloy hammer | 679 | 4.6 | 1,800,000 | 8000 | 4 | |
| Common high mangaenese steel hammer | 191 | 1 | 600,000 | 2000 | 1 |
The present invention has the following advantages compared with the high mangaenese steel tup:
1, hardness height, wearing coefficient is big, improves work-ing life more than 4 times.
Though 2, cost is higher slightly than common high mangaenese steel, because long service life is worthwhile from cost value.In addition, broken function non-stop run need not changed hammer, and throughput is greatly improved, and this is that common high mangaenese steel tup can't be compared.
3, because the tup wearing and tearing are few, fragmentation has very big benefit to frit, can reduce the impurity of glass, and optical property is improved.
The present invention is better than other steel and Steel Bond Hard Alloy castingin conjugation, and tup uses hundreds of hour not find that Steel Bond Hard Alloy has obscission.
Claims (4)
1, a kind of hammer head of hammer crusher, comprise mother metal and Steel Bond Hard Alloy, it is characterized in that mother metal is to add attrition resistant metallic element chromium, magnesium and rare earth element when melting high mangaenese steel, Steel Bond Hard Alloy is to be that bonding phase, titanium carbide are the hard phase, and contain metallic elements such as manganese, nickel, molybdenum with the steel.
2, hammer head of hammer crusher according to claim 1 is characterized in that the chemical constitution of mother metal is (weight %): C1.05-1.35, M
n11.5-14.00, CrO-2.5, M
g0.01-0.04, R
e0.002-0.02, Si≤1.00, p≤0.07, F
eSurplus.
3, hammer head of hammer crusher according to claim 1 is characterized in that the chemical constitution of Steel Bond Hard Alloy is (weight %):
TiC30-60, M
n9-12, NiO0.6-2.0, C0.8-1.4, MO0.6-2.0, F
eSurplus.
4, the manufacturing process of hammer head of hammer crusher according to claim 1, it is characterized in that the Steel Bond Hard Alloy that will make through oversintering, surface inspection and processing is embedded in the model that designs by the tup drawing, joining behind the case routinely, the qualified mother metal of high mangaenese steel technology melting is poured in the molding box, be incubated 4-6 hour, the cleaning surface, heat-treating then, is finishing, the examination and test of products at last, can obtain product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90104778 CN1020865C (en) | 1990-07-17 | 1990-07-17 | Composite steel-bonded carbidce hammer head and its manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90104778 CN1020865C (en) | 1990-07-17 | 1990-07-17 | Composite steel-bonded carbidce hammer head and its manufacturing process |
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| Publication Number | Publication Date |
|---|---|
| CN1049802A true CN1049802A (en) | 1991-03-13 |
| CN1020865C CN1020865C (en) | 1993-05-26 |
Family
ID=4878733
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90104778 Expired - Fee Related CN1020865C (en) | 1990-07-17 | 1990-07-17 | Composite steel-bonded carbidce hammer head and its manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1020865C (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294464A (en) * | 2011-08-09 | 2011-12-28 | 王惠臣 | Method for double-liquid composite casting of wear-resistant material of crushing machine by high-manganese steel and high-chromium cast iron |
| CN102383066A (en) * | 2011-11-14 | 2012-03-21 | 山东省汇丰机械集团总公司章丘市铸造厂 | Abrasion resistant cast steel and preparation method thereof |
| CN102489361A (en) * | 2011-12-21 | 2012-06-13 | 常熟市电力耐磨合金铸造有限公司 | Super high manganese block cast-in hammerhead |
| CN101632403B (en) * | 2009-06-11 | 2012-07-25 | 杭州六易科技有限公司 | Method for preparing honey green tea tablet |
| CN102600928A (en) * | 2012-02-29 | 2012-07-25 | 中国地质大学（北京） | Inserted tooth hammer of crushing machine and preparation method thereof |
| CN104249970A (en) * | 2014-09-11 | 2014-12-31 | 石嘴山市文军机械加工厂 | Composite lifting iron for metallurgy and manufacture method thereof |
| CN105834405A (en) * | 2016-04-22 | 2016-08-10 | 佳木斯大学 | Trimetal compound cast-in jaw plate and preparation method thereof |
| CN106180650A (en) * | 2016-07-20 | 2016-12-07 | 常熟市电力耐磨合金铸造有限公司 | A kind of wear-resisting type castingin tup and production technology thereof |
| CN106545578A (en) * | 2015-09-23 | 2017-03-29 | 天津职业技术师范大学 | A kind of TC bearings and its manufacture method |
| CN108396254A (en) * | 2018-04-28 | 2018-08-14 | 山东硕源工业机械设备有限公司 | Crusher Jaw plate and its production technology |
| CN108425077A (en) * | 2017-02-14 | 2018-08-21 | 常熟市电力耐磨合金铸造有限公司 | A kind of high abrasion shock resistance castingin type compression roller |
| CN110157989A (en) * | 2018-03-15 | 2019-08-23 | 莱芜职业技术学院 | A kind of PVD carburization titanium steel-bonded cemented carbide die and its preparation |
| CN110468343A (en) * | 2019-09-20 | 2019-11-19 | 广东省材料与加工研究所 | Enhancing high manganese steel base composite material and its preparation process is precipitated in TiC |
| CN110788299A (en) * | 2019-10-11 | 2020-02-14 | 常熟市电力耐磨合金铸造有限公司 | Integrated embedded type casting impact breaking rotor body and preparation process thereof |
-
1990
- 1990-07-17 CN CN 90104778 patent/CN1020865C/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101632403B (en) * | 2009-06-11 | 2012-07-25 | 杭州六易科技有限公司 | Method for preparing honey green tea tablet |
| CN102294464A (en) * | 2011-08-09 | 2011-12-28 | 王惠臣 | Method for double-liquid composite casting of wear-resistant material of crushing machine by high-manganese steel and high-chromium cast iron |
| CN102383066A (en) * | 2011-11-14 | 2012-03-21 | 山东省汇丰机械集团总公司章丘市铸造厂 | Abrasion resistant cast steel and preparation method thereof |
| CN102489361A (en) * | 2011-12-21 | 2012-06-13 | 常熟市电力耐磨合金铸造有限公司 | Super high manganese block cast-in hammerhead |
| CN102600928A (en) * | 2012-02-29 | 2012-07-25 | 中国地质大学（北京） | Inserted tooth hammer of crushing machine and preparation method thereof |
| CN102600928B (en) * | 2012-02-29 | 2015-07-08 | 中国地质大学（北京） | Inserted tooth hammer of crushing machine |
| CN104249970A (en) * | 2014-09-11 | 2014-12-31 | 石嘴山市文军机械加工厂 | Composite lifting iron for metallurgy and manufacture method thereof |
| CN106545578B (en) * | 2015-09-23 | 2019-09-13 | 天津职业技术师范大学 | A kind of TC bearing and its manufacturing method |
| CN106545578A (en) * | 2015-09-23 | 2017-03-29 | 天津职业技术师范大学 | A kind of TC bearings and its manufacture method |
| CN105834405A (en) * | 2016-04-22 | 2016-08-10 | 佳木斯大学 | Trimetal compound cast-in jaw plate and preparation method thereof |
| CN105834405B (en) * | 2016-04-22 | 2017-12-19 | 佳木斯大学 | Three metal composite castingin Jaw plates and preparation method thereof |
| CN106180650A (en) * | 2016-07-20 | 2016-12-07 | 常熟市电力耐磨合金铸造有限公司 | A kind of wear-resisting type castingin tup and production technology thereof |
| CN108425077A (en) * | 2017-02-14 | 2018-08-21 | 常熟市电力耐磨合金铸造有限公司 | A kind of high abrasion shock resistance castingin type compression roller |
| CN110157989A (en) * | 2018-03-15 | 2019-08-23 | 莱芜职业技术学院 | A kind of PVD carburization titanium steel-bonded cemented carbide die and its preparation |
| CN108396254A (en) * | 2018-04-28 | 2018-08-14 | 山东硕源工业机械设备有限公司 | Crusher Jaw plate and its production technology |
| CN110468343A (en) * | 2019-09-20 | 2019-11-19 | 广东省材料与加工研究所 | Enhancing high manganese steel base composite material and its preparation process is precipitated in TiC |
| CN110788299A (en) * | 2019-10-11 | 2020-02-14 | 常熟市电力耐磨合金铸造有限公司 | Integrated embedded type casting impact breaking rotor body and preparation process thereof |
| CN110788299B (en) * | 2019-10-11 | 2021-07-16 | 常熟市电力耐磨合金铸造有限公司 | Integrated embedded type casting impact breaking rotor body and preparation process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1020865C (en) | 1993-05-26 |
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