CN105779840A - Diamond and Fe-based metal composite casting, diamond and double-Fe-based-alloy composite casting and preparation method of diamond and double-Fe-based-alloy composite casting - Google Patents
Diamond and Fe-based metal composite casting, diamond and double-Fe-based-alloy composite casting and preparation method of diamond and double-Fe-based-alloy composite casting Download PDFInfo
- Publication number
- CN105779840A CN105779840A CN201610161227.3A CN201610161227A CN105779840A CN 105779840 A CN105779840 A CN 105779840A CN 201610161227 A CN201610161227 A CN 201610161227A CN 105779840 A CN105779840 A CN 105779840A
- Authority
- CN
- China
- Prior art keywords
- diamond
- ferrous alloy
- double
- casting
- composite casting
- 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.)
- Granted
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 83
- 239000000956 alloy Substances 0.000 title claims abstract description 83
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 77
- 239000010432 diamond Substances 0.000 title claims abstract description 77
- 238000005266 casting Methods 0.000 title claims abstract description 68
- 239000002131 composite material Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000002905 metal composite material Substances 0.000 title abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 7
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 74
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- 229910052799 carbon Inorganic materials 0.000 claims description 24
- -1 ferrous metals Chemical class 0.000 claims description 10
- 238000005058 metal casting Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005219 brazing Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005552 hardfacing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
Abstract
The invention discloses a diamond and Fe-based metal composite casting. The diamond and Fe-based metal composite casting is prepared from diamond particles and at least one Fe-based metal through casting, wherein the diamond particles are located on at least part of a surface region and/or at least partially close to the surface region of the composite casting. The diamond and Fe-based metal composite casting is prepared by compositing diamond and the Fe-based metal through metal casting for the first time, the process is simple, and the practicability is high. The invention further discloses a diamond and double-Fe-based-alloy composite casting and a preparation method of the diamond and double-Fe-based-alloy composite casting.
Description
Technical field
The present invention relates to a kind of diamond ferrous metals composite castings, the double; two ferrous alloy composite castings of diamond and preparation method thereof.
Background technology
In the construction of engineering machinery and mining machine, wearing piece can produce friction with Ore or rock.Owing to friction is big, the wear extent of wearing piece is relatively big, and use cost is higher.
For this, people have studied a large amount of high-abrasive material manufacturing wearing piece.Such as, the high violent steel part of casting and high-chromium cast iron piece.Although the high violent steel part cost of casting is low, but hardness is only at about HRC32.The hardness of high-chromium cast iron piece is at about HRC41, less costly.And for example, snearing build-up wear-resistant alloy, edge TiC-steel bar block hardfacing alloy part, its hardness is at about HRC60, and anti-wear performance still reaches to less than industrial requirements.In addition with brazing hard alloy block casting part, its hardness can reach HRC70-90, but service life is undesirable, and cost is high.
Accordingly, it would be desirable to a kind of new wearing piece, its hardness is high, and long service life, cost is low.
Summary of the invention
First purpose of the present invention is in that to provide a kind of diamond ferrous metals composite castings.
Second purpose of the present invention is in that to provide a kind of diamond double; two ferrous alloy composite castings.
3rd purpose of the present invention is in that the preparation method providing the double; two ferrous alloy composite castings of above-mentioned diamond.
For realizing above-mentioned first purpose, the present invention adopts herein below:
A kind of diamond ferrous metals composite castings, this composite castings includes diamond particles and at least one ferrous metals, makes through casting；Described diamond particles is positioned at least part of surface portion of composite castings and/or at least partly near surface portion.
Present invention firstly provides and use the combination that ferrous metals casting realizes ferrous metals and diamond to prepare diamond ferrous metals composite castings, technique is simple, practical.
The present invention provides a kind of preferred composite.
The double; two ferrous alloy composite castings of a kind of diamond, this composite castings includes: diamond particles, the first ferrous alloy and the second ferrous alloy, makes through casting；
Described diamond particles is positioned at least part of surface portion of composite castings and/or at least partly near surface portion；
Described diamond particles and the contact of the first ferrous alloy, but do not contact with the second ferrous alloy；
Described first ferrous alloy and the contact of the second ferrous alloy；
Wherein, the carbon equivalent of described first ferrous alloy is more than 0.60%, and the carbon equivalent of described second ferrous alloy is less than 0.60%.
Further, the granularity of described diamond particles is more than 150 μm.Being appreciated that the granularity of diamond particles is more big, cost can improve.Preferably, the granularity of diamond particles is 150-2000 μm.Ratio shared by diamond particles need not limit, and those skilled in the art can select as required.
Further, the carbon equivalent of described first ferrous alloy is not more than 10%.
Further, the carbon equivalent of described second ferrous alloy is not less than 0.02%.
The double; two ferrous alloy composite castings of the diamond of the present invention has a certain amount of diamond in its surface portion or near surface portion so that foundry goods has higher intensity and wearability；The carbon equivalent of the first ferrous alloy is higher, has higher intensity；The carbon equivalent of the second ferrous alloy is relatively low, has good toughness and resistance to impact.The double; two ferrous alloy composite castings of the diamond of the present invention is wear-resisting, it is possible to meet different mechanical property requirements.
The preparation method that the present invention also provides for the double; two ferrous alloy composite castings of above-mentioned diamond, comprises the following steps:
1) diamond particles is put at least part of surface portion of casting mold and/or at least part of close surface portion；
2) the casting carbon equivalent the second ferrous alloy less than 0.60%；
3) the casting carbon equivalent the first ferrous alloy more than 0.60% so that described diamond particles and the contact of the first ferrous alloy, described first ferrous alloy and the contact of the second ferrous alloy, obtains the double; two ferrous alloy composite castings of diamond.
The method of the present invention is very easy, twice ferrous alloy of only need to casting, and can obtain finished product cast, it is not necessary to any post-processing step.
Further, the granularity of described diamond particles is more than 150 μm.Being appreciated that the granularity of diamond particles is more big, cost can improve.Preferably, the granularity of diamond particles is 150-2000 μm.Ratio shared by diamond particles need not limit, and those skilled in the art can select as required.
Further, the carbon equivalent of described first ferrous alloy is not more than 10%.
Further, the carbon equivalent of described second ferrous alloy is not less than 0.02%.
Step 2) and 3) cast temperature to meet ferrous alloy be molten condition, do not limit at this.
The concrete composition of ferrous alloy need not limit, and only need to meet carbon content in scope of the present invention.
The preparation method of the present invention is simple, existing machine can be used to be prepared, increase cost hardly.
The invention have the advantages that
1, present invention firstly provides use casting of metals and prepare diamond metal composite foundry goods to the combination realizing metal and diamond, technique is simple, practical.
2, the double; two ferrous alloy composite castings of diamond that the inventive method produces, the hardness of surface portion can reach or close to diamond level；Compared with existing brazing hard alloy block casting part, anti-wear performance improves more than 3 times.
3, the double; two ferrous alloy composite castings of the diamond of the present invention is the ferrous alloy adopting successively twice casting difference carbon content, solves diamond and melts combine problem loosely, simultaneously the good mechanical property of foundry goods, and service life is 4 times of existing foundry goods life-span.
Accompanying drawing explanation
Below in conjunction with embodiment and accompanying drawing, the present invention is further described.
Fig. 1 is the structural representation of the double; two ferrous alloy composite castings of diamond of the present invention.
Detailed description of the invention
In order to be illustrated more clearly that the present invention, below in conjunction with preferred embodiment, the present invention is described further.It will be appreciated by those skilled in the art that following specifically described content is illustrative and be not restrictive, should not limit the scope of the invention with this.
Embodiment 1
The preparation method of the double; two ferrous alloy composite castings of a kind of diamond, comprises the following steps:
1) diamond particles is put at least part of surface portion of casting mold；
2) casting carbon equivalent is second ferrous alloy of 0.25%；
3) casting carbon equivalent is first ferrous alloy of 1.7% so that at least part of surface of diamond particles contacts with the first ferrous alloy, and the first ferrous alloy and the second ferrous alloy contact, and obtains the double; two ferrous alloy composite castings of diamond.
Fig. 1 is the structural representation of the double; two ferrous alloy composite castings of diamond of the present invention, diamond particles and the contact of the first ferrous alloy, but does not contact with the second ferrous alloy.
The granularity of diamond particles is 350-500 μm.
Second ferrous alloy adopts ZG25.
First ferrous alloy adopts H13, i.e. 4Cr5MoSiV1.
Step 2) and 3) cast temperature respectively 1500-1550 DEG C and 1470-1520 DEG C.
After tested, the hardness at the cast(ing) surface position that the inventive method produces reaches diamond hardness.Compared with existing brazing hard alloy block casting part, anti-wear performance improves more than 3 times.Improve more than 4 times service life.Impact flexibility is Akv=25J.
Comparative example
With embodiment 1, the only difference is that, the second ferrous alloy of only casting.
After tested, the surface diamond of this foundry goods and melts combine are loosely, easy to fall off.Impact flexibility is Akv=25J, but is only the 1/4 of embodiment 1 service life.
Embodiment 2
With embodiment 1, the only difference is that, the granularity of diamond particles is 1500-2000 μm, and the first ferrous alloy is kmTBGr20Mo, and carbon equivalent is about 8%；Second ferrous alloy is 42GrMo, and carbon equivalent is about 0.65%.After tested, this foundry goods is similar with the cast properties of embodiment 1.
Embodiment 3
With embodiment 1, the only difference is that, the granularity of diamond particles is 700-800 μm, and the first ferrous alloy is GGr15, and carbon equivalent is 1.6%；Second ferrous alloy is ZG15, and carbon equivalent is about 0.2%.
After tested, this foundry goods is similar with the cast properties of embodiment 1.
Obviously; the above embodiment of the present invention is only for clearly demonstrating example of the present invention; and be not the restriction to embodiments of the present invention; for those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here cannot all of embodiment be given exhaustive, every belong to apparent change that technical scheme extended out or the variation row still in protection scope of the present invention.
Claims (7)
1. a diamond ferrous metals composite castings, it is characterised in that described composite castings includes diamond particles and at least one ferrous metals, makes through casting；Described diamond particles is positioned at least part of surface portion of composite castings and/or at least partly near surface portion.
2. the double; two ferrous alloy composite castings of diamond, it is characterised in that described composite castings includes: diamond particles, the first ferrous alloy and the second ferrous alloy, makes through casting；
Described diamond particles is positioned at least part of surface portion of composite castings and/or at least partly near surface portion；
Described diamond particles and the contact of the first ferrous alloy, but do not contact with the second ferrous alloy；
Described first ferrous alloy and the contact of the second ferrous alloy；
Wherein, the carbon equivalent of described first ferrous alloy is more than 0.60%, and the carbon equivalent of described second ferrous alloy is less than 0.60%.
3. the double; two ferrous alloy composite castings of a kind of diamond according to claim 2, it is characterised in that the granularity of described diamond particles is more than 150 μm.
4. the double; two ferrous alloy composite castings of a kind of diamond according to Claims 2 or 3, it is characterised in that the granularity of described diamond particles is 150-2000 μm.
5. the double; two ferrous alloy composite castings of a kind of diamond according to claim 2, it is characterised in that the carbon equivalent of described first ferrous alloy is not more than 10%.
6. the double; two ferrous alloy composite castings of a kind of diamond according to claim 2, it is characterised in that the carbon equivalent of described second ferrous alloy is not less than 0.02%.
7. the preparation method of the double; two ferrous alloy composite castings of the diamond as described in as arbitrary in claim 2-6, it is characterised in that said method comprising the steps of:
1) diamond particles is put at least part of surface portion of casting mold and/or at least part of close surface portion；
2) the casting carbon equivalent the second ferrous alloy less than 0.60%；
3) the casting carbon equivalent the first ferrous alloy more than 0.60% so that described diamond particles and the contact of the first ferrous alloy, described first ferrous alloy and the contact of the second ferrous alloy, obtains the double; two ferrous alloy composite castings of diamond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610161227.3A CN105779840B (en) | 2016-03-21 | 2016-03-21 | Double ferrous alloy composite castingses of a kind of diamond and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610161227.3A CN105779840B (en) | 2016-03-21 | 2016-03-21 | Double ferrous alloy composite castingses of a kind of diamond and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105779840A true CN105779840A (en) | 2016-07-20 |
| CN105779840B CN105779840B (en) | 2017-06-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610161227.3A Expired - Fee Related CN105779840B (en) | 2016-03-21 | 2016-03-21 | Double ferrous alloy composite castingses of a kind of diamond and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN105779840B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108441749A (en) * | 2018-06-28 | 2018-08-24 | 浦北县金洋电厨具有限公司 | The production method of integral type electric frying pan |
| CN108728725A (en) * | 2018-06-28 | 2018-11-02 | 浦北县金洋电厨具有限公司 | The production method of Split type electric frying pan |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61179848A (en) * | 1986-02-17 | 1986-08-12 | Toshiba Tungaloy Co Ltd | High hardness sintered body for cutting |
| JPH02198770A (en) * | 1989-01-27 | 1990-08-07 | Nisshin Daiyamondo Kk | Cutter for cutting pig iron casting |
| CN1551926A (en) * | 2000-12-04 | 2004-12-01 | 通用电气公司 | Abrasive diamond composite and method of making thereof |
-
2016
- 2016-03-21 CN CN201610161227.3A patent/CN105779840B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61179848A (en) * | 1986-02-17 | 1986-08-12 | Toshiba Tungaloy Co Ltd | High hardness sintered body for cutting |
| JPH02198770A (en) * | 1989-01-27 | 1990-08-07 | Nisshin Daiyamondo Kk | Cutter for cutting pig iron casting |
| CN1551926A (en) * | 2000-12-04 | 2004-12-01 | 通用电气公司 | Abrasive diamond composite and method of making thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108441749A (en) * | 2018-06-28 | 2018-08-24 | 浦北县金洋电厨具有限公司 | The production method of integral type electric frying pan |
| CN108728725A (en) * | 2018-06-28 | 2018-11-02 | 浦北县金洋电厨具有限公司 | The production method of Split type electric frying pan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105779840B (en) | 2017-06-20 |
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Granted publication date: 20170620 |