CN102319900A - Bimetallic workpiece composition and machining method thereof - Google Patents
Bimetallic workpiece composition and machining method thereof Download PDFInfo
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- CN102319900A CN102319900A CN201110225849A CN201110225849A CN102319900A CN 102319900 A CN102319900 A CN 102319900A CN 201110225849 A CN201110225849 A CN 201110225849A CN 201110225849 A CN201110225849 A CN 201110225849A CN 102319900 A CN102319900 A CN 102319900A
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Abstract
The invention discloses a bimetallic workpiece composition and a machining method thereof. Copper has excellent mechanical properties such as abrasion resistance, impact resistance, corrosion resistance and the like, so the copper is widely applied; and meanwhile, because the copper is a relatively noble metal, if the whole workpiece is made of copper material, the copper resource is wasted. The bimetallic workpiece composition comprises an iron-based material, and a copper-based layer is compounded on the iron-based material; the iron-based material contains 6 to 9 percent of tin bronze, 3.5 to 5 percent of tin-lead alloy, 0.15 to 0.4 percent of compound of sulfur and graphite in a weight ratio of 1:1-3, 0.2 to 0.6 percent of zinc stearate and the balance of iron; and the copper-based layer lined on the inner surface is formed on the inner surface of the machined part, the weight part of the copper-based layer is the weight for forming a thickness of 1 to 5 centimeters on the inner surface, and the thickness does not contain machining allowance. The bimetallic workpiece composition is used for producing metallic machined parts.
Description
Technical field:
invention relates to a kind of field of materials that is used for; Be specifically related to a kind of double metal workpiece composition and processing method.
Background technology:
are because copper has wear-resisting, shock resistance, good mechanical property such as corrosion-resistant; So copper is widely used in the occasions such as axle sleeve, nut, worm gear and lining on the movable machinery; Simultaneously because copper is again a kind of comparatively valuable metal; If the integral body of each workpiece all adopts copper product to make, not only can improve the cost of workpiece widely, and also be a kind of waste the copper resource.For addressing this problem, adopt bimetal structure to make workpiece in the prior art usually, the common practice is that machining adopts the mutually nested mode workpiece that forms a whole then by two workpiece that copper and iron constitute respectively.But, also be difficult to make it to reach desirable mechanical performance even adopt, so the workpiece of processing with this kind method can not be suitable for various occasions as adding subsidy measures such as wedge because two kinds of direct nested its adhesions of metals are low.
Summary of the invention:
The purpose of
invention provides a kind ofly can save a large amount of exotic materials, reduces product cost, can guarantee its stable mechanical performance again and be applicable to the double metal workpiece composition of various occasions.
Above-mentioned purpose realizes through following technical scheme:
double metal workpiece composition; Its composition comprises: iron; Be compounded with base copper on the described iron; Contain 6～9% tin bronze in the iron, contain 3.5～5% terne metal, contain 0.15～0.4% the sulphur and the compound of graphite, the compound weight ratio of described sulphur and graphite is 1:1～3,0.2～0.6% zinc stearate, and all the other are iron; Inner surface at the machine-shaping part forms the base copper of lining at described inner surface, and the parts by weight of described base copper are the weight that inner surface forms 1-5 millimeter thickness, and this thickness does not comprise allowance.
described double metal workpiece composition, being below 100 orders of the compound of described tin bronze, terne metal, sulphur and graphite and zinc stearate.
A kind of processing method of double metal workpiece composition, processing method has following steps:
The first step takes by weighing the ratio of above-mentioned various materials in claim 1, processes iron-based powder and base copper powder;
In second step, that the iron-based powder raw material stirring is even;
The 3rd step, with sieve iron-based powder and base copper powder are screened, remove greater than 100 purpose granular materials;
In the 4th step, iron-based powder and base copper powder are poured in the ready made mould; Iron-based powder separates with the base copper powder, does not mix each other; The iron powder of in ready made mould, packing into earlier, the spacer of packing into then is again at the spacer opposite side base copper powder of packing into; Take out spacer then; Cold extrusion under 180-200MPa pressure;
The 5th step packed the product of the 4th step cold extrusion gained in the sintering furnace, and sintering furnace is divided into the temperature of three phases, and the temperature in each stage is respectively 550-680 ℃, 800-900 ℃, 800-800 ℃; At each stage sintering 20-40 minute, continue sintering by moving to the next stage after first stage sintering, forward the final stage sintering to after, cool off; Use the cooling water of circulation during cooling; Put into sand after coming out of the stove and be cooled to room temperature;
The 6th step packed part in the ready made mould; Cold extrusion once more under 200-260MPa pressure; Increase the density and the intensity of material;
The 7th step repeated above sintering process once;
the 8th step is utilized machining process that part is processed once more and obtains finished product.
The processing method of
described double metal workpiece composition is connected with hydrogen in sintering furnace; Light a fire before the blow-on, part is in sintering, and the stove planted agent keeps having naked light.
Beneficial effect:
The sintering character and the mechanical performance of iron can be improved in
1. the sulphur that adds of the present invention, and the workpiece quality of processing is greatly improved.
2. the iron of the present invention's employing substitute most copper, so, relatively low with the workpiece cost that this kind composition is made, also can save a large amount of rare precious materials--the nickel and the phosphorus of tradition use simultaneously; Secondly, consider the mechanical property that iron-based is intrinsic, thus in iron, also added sulfur material so that the mechanical performance of iron and and copper between adhesion can both reach the ideal designs requirement.
The workpiece that
3. make with the present invention, the parameter designing of its combination ingredient be through proving and test repeatedly, and product has obviously reduced crackle, burning, crisp defective such as contract.
A large amount of exotic materials can be saved in
4. the present invention; Reduce product cost; Can guarantee its stable mechanical performance again and be applicable to the double metal workpiece composition of various occasions, country and national industry are had enormous social meaning and economic interests.
The specific embodiment:
Embodiment 1:
double metal workpiece composition; Comprise: iron; Be compounded with base copper on the described iron; Contain 6～9% tin bronze in the iron, contain 3.5～5% terne metal, contain 0.15～0.4% the sulphur and the compound of graphite, the compound weight ratio of described sulphur and graphite is 1:1～3,0.2～0.6% zinc stearate, and all the other are iron; Inner surface at the machine-shaping part forms the base copper of lining at described inner surface, and the parts by weight of described base copper are the weight that inner surface forms 1-5 millimeter thickness, and this thickness does not comprise allowance.
Embodiment 2:
embodiment 1 described double metal workpiece composition; The compound of described tin bronze and described terne metal and described sulphur and graphite is formed iron, and the compound of described tin bronze and described terne metal and described sulphur and graphite is 100 orders.
Embodiment 3:
embodiment 1 or 2 described double metal workpiece compositions comprise sulphur and graphite in the compound of described sulphur and graphite, the weight ratio of described sulphur and described graphite is 1:1～3.
Embodiment 4:
A kind of processing method of double metal workpiece composition, processing method has following steps:
The first step takes by weighing v by weight with above-mentioned various materials, processes iron-based powder and copper-based material, is example here with the copper powder;
In second step, iron-based powder was evenly stirred 0.5-1.5 hour;
The 3rd step, with sieve iron-based powder and copper powder are screened, remove greater than 100 purpose granular materials;
In the 4th step, iron-based powder and copper powder are poured in the ready made mould; Iron-based powder separates with copper powder, does not mix each other; The iron powder of in ready made mould, packing into earlier, the spacer of packing into then is again at the spacer opposite side copper powder of packing into; Take out spacer then; Cold extrusion under 180-200MPa pressure;
The 5th step packed the product of the 4th step cold extrusion gained in the sintering furnace, and sintering furnace is divided into the temperature of three phases, and the temperature in each stage is respectively 550-680 ℃, 800-900 ℃, 800-800 ℃; At each stage sintering 20-40 minute, continue sintering by moving to the next stage after first stage sintering, forward the final stage sintering to after, cool off; Use the cooling water of circulation during cooling; Put into sand after coming out of the stove and be cooled to room temperature;
The 6th step packed part in the ready made mould; Cold extrusion once more under 200-260MPa pressure; Increase the density and the intensity of material;
The 7th step repeated above sintering process once;
the 8th step is utilized machining process that part is processed once more and obtains finished product.
Embodiment 5:
The processing method of
embodiment 4 described double metal workpiece compositions is connected with hydrogen in sintering furnace; Light a fire before the blow-on, part is in sintering, and the stove planted agent keeps having naked light.
Embodiment 6:
Described double metal workpiece composition of above embodiment and processing method may further comprise the steps:
1) batching: various materials are weighed in proportion, form iron-based powder and copper powder.
2) stir: stirred iron-based powder 0.5-1.5 hour.It is stirred.
3) sifter: sieve the iron-based powder and copper powder for Ce choose to remove large particles of the material.
4) the thick pressure: iron-based powder and copper powder are poured in the ready made mould.Mould requires iron-based powder and copper powder are separated, and can not mix each other.The iron powder of packing into earlier, the spacer of packing into then is again at the spacer opposite side copper powder of packing into.Take out spacer then.Cold extrusion under 180-200MPa pressure.
5) just burn: in the sintering furnace of packing into.Sintering furnace is divided into three phases.Temperature is respectively 550-680 ℃, 800-900 ℃, 800-800 ℃.At each stage sintering 20-40 minute, move to the next stage then.After forwarding final stage to, cool off.Use the cooling water of circulation during cooling.Put into sand after coming out of the stove and be cooled to room temperature.In sintering furnace, be connected with hydrogen.Light a fire before the blow-on, part is in sintering, and the stove planted agent keeps the naked light condition.
6) the multiple pressure: part is packed in the ready made mould.Cold extrusion once more under 200-260MPa pressure.Increase the density and the intensity of material.
7) resintering: the condition identical with first burning is carried out sintering once more.
8) processing: utilize machining process that part is processed.
are analyzed the proportioning and the composition of material through repetition test, have obtained the double metal workpiece assembly thing and the processing method of a science.
Claims (4)
1. double metal workpiece composition; Its composition comprises: iron; It is characterized in that: be compounded with base copper on the described iron; Contain 6～9% tin bronze in the iron, contain 3.5～5% terne metal, contain 0.15～0.4% the sulphur and the compound of graphite, the compound weight ratio of described sulphur and graphite is 1:1～3,0.2～0.6% zinc stearate, and all the other are iron; Inner surface at the machine-shaping part forms the base copper of lining at described inner surface, and the parts by weight of described base copper are the weight that inner surface forms 1-5 millimeter thickness, and this thickness does not comprise allowance.
2. double metal workpiece composition according to claim 1 is characterized in that: being below 100 orders of the compound of described tin bronze, terne metal, sulphur and graphite and zinc stearate.
3. the processing method of a double metal workpiece composition, it is characterized in that: processing method has following steps:
The first step takes by weighing the ratio of above-mentioned various materials in claim 1, processes iron-based powder and base copper powder;
In second step, that the iron-based powder raw material stirring is even;
The 3rd step, with sieve iron-based powder and base copper powder are screened, remove greater than 100 purpose granular materials;
In the 4th step, iron-based powder and base copper powder are poured in the ready made mould; Iron-based powder separates with the base copper powder, does not mix each other; The iron powder of in ready made mould, packing into earlier, the spacer of packing into then is again at the spacer opposite side base copper powder of packing into; Take out spacer then; Cold extrusion under 180-200MPa pressure;
The 5th step packed the product of the 4th step cold extrusion gained in the sintering furnace, and sintering furnace is divided into the temperature of three phases, and the temperature in each stage is respectively 550-680 ℃, 800-900 ℃, 800-800 ℃; At each stage sintering 20-40 minute, continue sintering by moving to the next stage after first stage sintering, forward the final stage sintering to after, cool off; Use the cooling water of circulation during cooling; Put into sand after coming out of the stove and be cooled to room temperature;
The 6th step packed part in the ready made mould; Cold extrusion once more under 200-260MPa pressure; Increase the density and the intensity of material;
The 7th step repeated above sintering process once;
The 8th step was utilized machining process that part is processed once more and obtains finished product.
4. the processing method of double metal workpiece composition according to claim 3 is characterized in that: in sintering furnace, be connected with hydrogen; Light a fire before the blow-on, part is in sintering, and the stove planted agent keeps having naked light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110225849A CN102319900A (en) | 2011-08-08 | 2011-08-08 | Bimetallic workpiece composition and machining method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110225849A CN102319900A (en) | 2011-08-08 | 2011-08-08 | Bimetallic workpiece composition and machining method thereof |
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| CN102319900A true CN102319900A (en) | 2012-01-18 |
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| CN201110225849A Pending CN102319900A (en) | 2011-08-08 | 2011-08-08 | Bimetallic workpiece composition and machining method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107351479A (en) * | 2017-09-08 | 2017-11-17 | 苏州英得福机电科技有限公司 | A kind of high stability metal material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4243728A (en) * | 1976-01-01 | 1981-01-06 | Nihon Kogyo Kabushiki Kaisha | Double-metal-coated metal sulfide powder and process of producing the same |
| AU6602281A (en) * | 1980-01-16 | 1981-07-23 | Imperial Clevite Inc. | Wear-resistant metallic article |
| CN1056832A (en) * | 1990-05-22 | 1991-12-11 | 杨洋 | The production technology of iron-based and iron-copper bi-metal products |
| CN1054649C (en) * | 1995-08-01 | 2000-07-19 | 陈刚 | Technology of split pressing one-time compounding for composite iron-base alloy of powdered metallurgy of tin and bronze |
| CN1251829C (en) * | 2001-06-19 | 2006-04-19 | 赵军 | Double metal workpiece composition and processing method |
| CN102002636A (en) * | 2010-10-26 | 2011-04-06 | 威海市宇王集团有限公司 | Novel material for producing worm gear and production method of worm gear |
-
2011
- 2011-08-08 CN CN201110225849A patent/CN102319900A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4243728A (en) * | 1976-01-01 | 1981-01-06 | Nihon Kogyo Kabushiki Kaisha | Double-metal-coated metal sulfide powder and process of producing the same |
| AU6602281A (en) * | 1980-01-16 | 1981-07-23 | Imperial Clevite Inc. | Wear-resistant metallic article |
| CN1056832A (en) * | 1990-05-22 | 1991-12-11 | 杨洋 | The production technology of iron-based and iron-copper bi-metal products |
| CN1054649C (en) * | 1995-08-01 | 2000-07-19 | 陈刚 | Technology of split pressing one-time compounding for composite iron-base alloy of powdered metallurgy of tin and bronze |
| CN1251829C (en) * | 2001-06-19 | 2006-04-19 | 赵军 | Double metal workpiece composition and processing method |
| CN102002636A (en) * | 2010-10-26 | 2011-04-06 | 威海市宇王集团有限公司 | Novel material for producing worm gear and production method of worm gear |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107351479A (en) * | 2017-09-08 | 2017-11-17 | 苏州英得福机电科技有限公司 | A kind of high stability metal material |
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Free format text: CORRECT: ADDRESS; FROM: 150066 HARBIN, HEILONGJIANG PROVINCE TO: 150020 HARBIN, HEILONGJIANG PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20120522 Address after: 150020 D43, building 1, block 1, phase 1, Shimao new town, Songbei, Heilongjiang, Harbin, Binjiang, China Applicant after: Harbin Dongan Hydraulic Machinery Co., Ltd. Address before: 150066, 13, two street, West Village, cottage Town, cottage area, Heilongjiang, Harbin Applicant before: Harbin Dongan Hydraulic Machinery Co., Ltd. |
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Application publication date: 20120118 |