CN104028765A - Powder metallurgy component and production method of powder metallurgy component with through hole - Google Patents

Powder metallurgy component and production method of powder metallurgy component with through hole Download PDF

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Publication number
CN104028765A
CN104028765A CN201410300354.8A CN201410300354A CN104028765A CN 104028765 A CN104028765 A CN 104028765A CN 201410300354 A CN201410300354 A CN 201410300354A CN 104028765 A CN104028765 A CN 104028765A
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powder
sintered products
metallic sintered
hole
production method
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CN201410300354.8A
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CN104028765B (en
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刘爱民
许荣玉
宁上中
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Jiangsu hongchuang Precision Manufacturing Co.,Ltd.
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Zhangjiagang Zhen Jiang Sintered Metal Product Co Ltd
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Abstract

The invention discloses a powder metallurgy component which is compressed by powder materials. The powder materials includes, by weight, 100 parts of iron powder, 1.8-2.2 parts of copper powder, 0.-1.0 part of graphite powder, 2.0-3.0 parts of nickel powder, 0.4-0.8 part of molybdenum powder, 0.5-1.0 part of micro powder wax, and 0.5-1.0 part of calcium fluoride. The invention further disposed a production method of the powder metallurgy component with a through hole. The method includes: well mixing the powder materials, placing the mixed alloy iron-based powder in a die for compressing forming, sintering, mechanically drilling, thermally processing, and surface vibration grinding to obtain the powder metallurgy component. The produced powder metallurgy component is high in precision, strength and hardness, good in wear resistance, widely applicable to manufacturing of various bevel gears, and the like.

Description

A kind of metallic sintered products and band are installed the production method of the metallic sintered products of through hole
Technical field
The present invention relates to field of powder metallurgy, the production method that is specifically related to a kind of metallic sintered products and bands such as bevel gear, the metallic sintered products of through hole is installed.
Background technology
So-called metallic sintered products, refers to the finished product that by mould, alloy iron-based mixed-powder is pressed into various shapes.At present, for installing for the bevel gear of through hole, mostly still adopt traditional machine-tooled method, not only production process complexity, cost are high; And the finished product hardness that obtains is low, wearability is inadequate, has greatly shortened the service life of bevel gear.
Summary of the invention
Technical problem to be solved by this invention is: a kind of high accuracy, high strength, high rigidity, metallic sintered products that wearability is good are provided.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: metallic sintered products, comprises following powder stock: water-atomized iron powder 100 weight portions, copper powder 1.8-2.2 weight portion, graphite powder 0.5-1.0 weight portion, nickel powder 2.0-3.0 weight portion, molybdenum powder 0.4-0.8 weight portion, micro mist wax 0.5-1.0 weight portion, calcirm-fluoride 0.5-1.0 weight portion.
Further technical problem to be solved by this invention is: the production method that provides band that a kind of high accuracy, high strength, high rigidity, wearability are good that the metallic sintered products of through hole is installed.
For solving above-mentioned further technical problem, the technical solution adopted in the present invention is: a kind of production method of the metallic sintered products with installation through hole, the steps include:
1) batch mixing: according to metallic sintered products of the present invention, take needed raw material, first 40～60% water-atomized iron powder is packed in mixed powder machine, then, in mixed powder machine, add copper powder, nickel powder and molybdenum powder, then add remaining water-atomized iron powder in mixed powder machine, stir; Then graphite powder, micro mist wax and calcirm-fluoride are added in mixed powder machine, after stirring, sieve, place at least 12 hours, obtain alloy iron-based mixed-powder;
2) compacting: by step 1) the alloy iron-based mixed-powder that obtains packs in mould, compressing under the pressure of 590～620Mpa;
3) sintering: compressing green compact are put into through type net strip sintering furnace, under the protection of the mist of hydrogen and nitrogen, guipure is advanced with the speed of 90～100 mm/second, first pass through preheating section, temperature is 450～850 DEG C, time is no less than 45 minutes, by micro mist wax, graphite and binding agent burn off; Then, through high temperature section alloying, temperature is 1050～1150 DEG C, and the time is no less than 1 hour, last, comes out of the stove through cooling section;
4) mechanical process;
5) heat treatment: the metallic sintered products after mechanical process is put into carburizer, carry out carbo-nitriding processing, then, under 850 ± 5 DEG C, the condition of carbon potential 0.7 ± 0.1, be incubated more than 2 hours, then, metallic sintered products after quenching is sent in tempering furnace, be heated to 180～200 DEG C and carry out temper, insulation is more than 1 hour;
6) surface vibration is ground: metallic sintered products and grinding stone are put into oscillating mill, and put into brightener and polishing agent, grind more than one hour, then, successively through cleaning and immersion oil, obtain ganoid bevel gear.
In step 6) during described surface vibration grinds, the proportion of establishing metallic sintered products is σ 1, the diameter of its through hole is D 1, be highly H1, the quality of metallic sintered products is G 1, the bulk density of grinding the grinding stone adopting is σ 2, the quality of grinding stone is G 2,
G 2 = K × [ π ( D 1 2 ) 2 × H 1 + G 1 σ 1 ] × σ 2 + π ( D 1 2 ) 2 × σ 2 , 2.5 ≤ K ≤ 3.5 .
Described oscillating mill has adopted that spiral rolling is flowed, three-D mode of vibration, and described metallic sintered products and corundum grinding stone are ground mutually.
Step 1) described sieve that what adopt is 80～100 objects sieves.
Described hydrogen and the percent by volume of nitrogen are: 2.5～4: 96～97.5.
Described grinding stone is corundum grinding stone.
The invention has the beneficial effects as follows: compared with traditional machined bevel gear, powder metallurgy bevel gear of the present invention, that the alloyed iron based powders obtaining after iron powder, copper powder, graphite powder, nickel powder, molybdenum powder, micro mist wax, calcirm-fluoride are fully mixed is obtaining finished product after compacting, sintering, machined, heat treatment and surface vibration milled processed, because adopted powder metallurgy processing technology, significantly reduce manufacturing cost, improved stock utilization and production efficiency.In addition, the present invention is in the time carrying out surface treatment to metallic sintered products, and the amount of the corundum grinding stone adding is more reasonable, so just can, in ensureing grinding effect, put into metallic sintered products as much as possible, to enhance productivity more; In addition, the ratio of the mist of hydrogen and nitrogen is more moderate, by the proportion control of hydrogen between 2.5～4%, not only greatly reduce manufacturing cost (cost of manufacture of hydrogen is higher), and, even if reveal, meet naked light and also can not blast, obtain Reliable guarantee with regard to the security that makes mist like this.
Detailed description of the invention
Below by embodiment, describe the raw material proportioning of metallic sintered products of the present invention in detail, this proportioning is particularly useful for making drive disk assemblies such as bevel gear.
Embodiment mono-:
100 grams of water-atomized iron powders, 1.8 grams of copper powders, 0.5 gram of graphite powder, 2.0 grams of nickel powders, 0.4 gram of molybdenum powder, 0.5 gram of micro mist wax, 0.5 gram, calcirm-fluoride.
Embodiment bis-:
100 grams of water-atomized iron powders, 2 grams of copper powders, 0.75 gram of graphite powder, 2.5 grams of nickel powders, 0.6 gram of molybdenum powder, 0.75 gram of micro mist wax, 0.75 gram, calcirm-fluoride.
Embodiment tri-:
100 grams of water-atomized iron powders, 2.2 grams of copper powders, 1.0 grams of graphite powders, 3.0 grams of nickel powders, 0.8 gram of molybdenum powder, 1.0 grams of micro mist waxes, 1.0 grams, calcirm-fluoride.
Taking powder metallurgy bevel gear as example, describe the production method of the metallic sintered products of band installation through hole of the present invention in detail below, the steps include:
1) batch mixing: according to metallic sintered products of the present invention, take needed raw material, first the water-atomized iron powder of half is packed in mixed powder machine, then, in mixed powder machine, add copper powder, nickel powder and molybdenum powder, then to adding second half water-atomized iron powder in mixed powder machine, stir; Then, graphite powder, micro mist wax and calcirm-fluoride are added in mixed powder machine, after stirring, cross 80～100 sieve, then, place at least 12 hours, obtain alloy iron-based mixed-powder;
2) compacting: by step 1) the alloy iron-based mixed-powder that obtains packs in mould, compressing under the pressure of 590～620Mpa;
3) sintering: compressing green compact are put into through type net strip sintering furnace, be under the protection of 2.5～4: 96～97.5 mists in the ratio of hydrogen and nitrogen, guipure is advanced with the speed of 90～100 mm/second (mm/s), first pass through preheating section, temperature is 450～850 DEG C, time is no less than 45 minutes, by micro mist wax, graphite and binding agent burn off; Then, through high temperature section alloying, temperature is 1050～1150 DEG C, and the time is no less than 1 hour, last, comes out of the stove through cooling section;
4) mechanical process: the bevel gear sintering is packed in frock, bore the aperture that runs through perpendicular to endoporus in direction radially;
5) heat treatment: the bevel gear that machined is good is put into carburizer, carry out carbo-nitriding processing, under 850 ± 5 DEG C, the condition of carbon potential 0.7 ± 0.1, be incubated more than 2 hours, then, with quenching oil cooling (quenching), bevel gear after quenching is sent in tempering furnace, be heated to 180～200 DEG C and carry out temper, insulation is more than 1 hour;
6) surface vibration is ground: bevel gear good heat treatment and corundum grinding stone are put into and adopted that spiral rolling is flowed, the oscillating mill of three-D mode of vibration, and put into brightener and polishing agent, grind more than one hour, then successively through cleaning and immersion oil, obtain ganoid bevel gear;
Wherein, the addition of corundum grinding stone calculates by following manner, establishes: the proportion of powder metallurgy bevel gear is σ 1, quality is G 1, its diameter that through hole is installed is D 1, be highly H1, the bulk density of corundum grinding stone is σ 2, quality is G 2,
G 2 = K × [ π ( D 1 2 ) 2 × H 1 + G 1 σ 1 ] × σ 2 + π ( D 1 2 ) 2 × σ 2 , 2.5 ≤ K ≤ 3.5 .
In sum, it is only preferred embodiment of the present invention, not be used for limiting scope of the invention process, all equalizations of doing according to the shape described in the claims in the present invention scope, structure, feature and spirit change and modify, and all should be included within the scope of claim of the present invention.

Claims (7)

1. a metallic sintered products, comprises following powder stock: water-atomized iron powder 100 weight portions, copper powder 1.8-2.2 weight portion, graphite powder 0.5-1.0 weight portion, nickel powder 2.0-3.0 weight portion, molybdenum powder 0.4-0.8 weight portion, micro mist wax 0.5-1.0 weight portion, calcirm-fluoride 0.5-1.0 weight portion.
2. a production method for the metallic sintered products with installation through hole, the steps include:
1) batch mixing: first, according to metallic sintered products of the present invention, take needed raw material, first 40～60% water-atomized iron powder is packed in mixed powder machine, then, in mixed powder machine, add copper powder, nickel powder and molybdenum powder, then add remaining water-atomized iron powder in mixed powder machine, stir; Then graphite powder, micro mist wax and calcirm-fluoride are added in mixed powder machine, after stirring, sieve, place at least 12 hours, obtain alloy iron-based mixed-powder;
2) compacting: by step 1) the alloy iron-based mixed-powder that obtains packs in mould, compressing under the pressure of 590～620Mpa;
3) sintering: compressing green compact are put into through type net strip sintering furnace, under the protection of the mist of hydrogen and nitrogen, guipure is advanced with the speed of 90～100 mm/second, first pass through preheating section, temperature is 450～850 DEG C, time is no less than 45 minutes, by micro mist wax, graphite and binding agent burn off; Then, through high temperature section alloying, temperature is 1050～1150 DEG C, and the time is no less than 1 hour, last, comes out of the stove through cooling section;
4) mechanical process;
5) heat treatment: the metallic sintered products after mechanical process is put into carburizer, carry out carbo-nitriding processing, then, under 850 ± 5 DEG C, the condition of carbon potential 0.7 ± 0.1, be incubated more than 2 hours, then, metallic sintered products after quenching is sent in tempering furnace, be heated to 180～200 DEG C and carry out temper, insulation is more than 1 hour;
6) surface vibration is ground: metallic sintered products and grinding stone are put into oscillating mill, and put into brightener and polishing agent, grind more than one hour, then, successively through cleaning and immersion oil, obtain ganoid bevel gear.
3. the production method that the metallic sintered products of through hole is installed according to band described in claim 2, is characterized in that: in step 6) during described surface vibration grinds, the proportion of establishing metallic sintered products is σ 1, the diameter of its through hole is D 1, be highly H1, the quality of metallic sintered products is G 1, the bulk density of grinding the grinding stone adopting is σ 2, the quality of grinding stone is G 2,
G 2 = K × [ π ( D 1 2 ) 2 × H 1 + G 1 σ 1 ] × σ 2 + π ( D 1 2 ) 2 × σ 2 , 2.5 ≤ K ≤ 3.5 .
4. the production method that the metallic sintered products of through hole is installed according to band described in claim 2, is characterized in that: described oscillating mill has adopted that spiral rolling is flowed, three-D mode of vibration, and described metallic sintered products and grinding stone are ground mutually.
5. the production method that the metallic sintered products of through hole is installed according to band described in claim 2, is characterized in that: step 1) described sieve that what adopt is 80～100 objects sieves.
6. the production method that the metallic sintered products of through hole is installed according to the band one of claim 2 to 5 Suo Shu, is characterized in that: described hydrogen and the percent by volume of nitrogen are: 2.5～4: 96～97.5.
7. the production method that the metallic sintered products of through hole is installed according to the band one of claim 2 to 5 Suo Shu, is characterized in that: described grinding stone is corundum grinding stone.
CN201410300354.8A 2014-06-27 2014-06-27 A kind of production method of the metallic sintered products with installation through hole Active CN104028765B (en)

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Cited By (17)

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CN106195008A (en) * 2016-07-01 2016-12-07 江苏鹰球集团有限公司 Positioning sleeve and manufacture method thereof for ball bearing
CN106270487A (en) * 2016-08-30 2017-01-04 宁波拓发汽车零部件有限公司 A kind of electromagnetism connects valve
CN106363179A (en) * 2016-08-30 2017-02-01 宁波拓发汽车零部件有限公司 Bottom valve
CN106566974A (en) * 2016-11-01 2017-04-19 安徽恒均粉末冶金科技股份有限公司 Automobile magnetic water pump powder metallurgy inner/outer magnet ring and preparation method thereof
CN107000058A (en) * 2014-12-12 2017-08-01 住友电工烧结合金株式会社 The manufacture method and sintered component of sintered component
CN107000057A (en) * 2014-12-12 2017-08-01 住友电工烧结合金株式会社 Manufacture method, sintered component and the drill bit of sintered component
CN107043885A (en) * 2017-04-28 2017-08-15 张家港振江粉末冶金制品有限公司 A kind of manufacture method of immediate action valve valve element
CN107321993A (en) * 2017-06-27 2017-11-07 浙江丰立机电有限公司 A kind of powder metallurgical gear preparation method for being used to share bicycle
CN107363260A (en) * 2017-07-25 2017-11-21 重庆江洲粉末冶金科技有限公司 A kind of production technology of powder metallurgy transmission gear
CN107419186A (en) * 2017-04-28 2017-12-01 张家港振江粉末冶金制品有限公司 A kind of manufacture method of helical gear
CN109513915A (en) * 2018-11-27 2019-03-26 汪学军 A kind of production method of metallic sintered products and the metallic sintered products with installation through-hole
CN109628848A (en) * 2018-12-28 2019-04-16 浙江江兴汽车检测设备有限公司 A kind of Retarder dilval magnetic conductive board and preparation method thereof
CN109663909A (en) * 2019-01-14 2019-04-23 常熟市华德粉末冶金有限公司 A kind of preparation method of high-precision powder metallurgy automobile ignition switch lock tongue
CN111074181A (en) * 2019-12-26 2020-04-28 东莞市振亮精密科技有限公司 5G antenna fixing seat and forming method thereof
CN111590068A (en) * 2020-05-14 2020-08-28 苏州市凌志粉末冶金有限公司 Cam machining method
CN112570712A (en) * 2020-12-01 2021-03-30 菏泽双龙冶金机械有限公司 Powder metallurgy part and production method of powder metallurgy part with mounting through hole
CN113020601A (en) * 2021-02-05 2021-06-25 鞠真飞 Throwing fly cutter capable of building body for physical training and manufacturing method thereof

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CN103028730A (en) * 2012-10-25 2013-04-10 安徽蓝博旺机械集团合诚机械有限公司 Powder metallurgy preparation method of valve clack of membrane valve
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CN102335746A (en) * 2011-09-26 2012-02-01 吕元之 Powder metallurgy sedan synchronizer gear hub and production method thereof
CN102773481A (en) * 2012-05-08 2012-11-14 北京科技大学 Method of improving performance of iron-based powder metallurgy parts prepared by high velocity compaction
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Cited By (20)

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CN107000058A (en) * 2014-12-12 2017-08-01 住友电工烧结合金株式会社 The manufacture method and sintered component of sintered component
CN107000057A (en) * 2014-12-12 2017-08-01 住友电工烧结合金株式会社 Manufacture method, sintered component and the drill bit of sintered component
CN106195008A (en) * 2016-07-01 2016-12-07 江苏鹰球集团有限公司 Positioning sleeve and manufacture method thereof for ball bearing
CN106270487B (en) * 2016-08-30 2018-08-10 宁波拓发汽车零部件有限公司 A kind of electromagnetism connection valve
CN106363179A (en) * 2016-08-30 2017-02-01 宁波拓发汽车零部件有限公司 Bottom valve
CN106270487A (en) * 2016-08-30 2017-01-04 宁波拓发汽车零部件有限公司 A kind of electromagnetism connects valve
CN106566974A (en) * 2016-11-01 2017-04-19 安徽恒均粉末冶金科技股份有限公司 Automobile magnetic water pump powder metallurgy inner/outer magnet ring and preparation method thereof
CN107043885A (en) * 2017-04-28 2017-08-15 张家港振江粉末冶金制品有限公司 A kind of manufacture method of immediate action valve valve element
CN107419186A (en) * 2017-04-28 2017-12-01 张家港振江粉末冶金制品有限公司 A kind of manufacture method of helical gear
CN107321993A (en) * 2017-06-27 2017-11-07 浙江丰立机电有限公司 A kind of powder metallurgical gear preparation method for being used to share bicycle
CN107363260A (en) * 2017-07-25 2017-11-21 重庆江洲粉末冶金科技有限公司 A kind of production technology of powder metallurgy transmission gear
CN109513915A (en) * 2018-11-27 2019-03-26 汪学军 A kind of production method of metallic sintered products and the metallic sintered products with installation through-hole
CN109628848A (en) * 2018-12-28 2019-04-16 浙江江兴汽车检测设备有限公司 A kind of Retarder dilval magnetic conductive board and preparation method thereof
CN109663909A (en) * 2019-01-14 2019-04-23 常熟市华德粉末冶金有限公司 A kind of preparation method of high-precision powder metallurgy automobile ignition switch lock tongue
CN111074181A (en) * 2019-12-26 2020-04-28 东莞市振亮精密科技有限公司 5G antenna fixing seat and forming method thereof
CN111590068A (en) * 2020-05-14 2020-08-28 苏州市凌志粉末冶金有限公司 Cam machining method
CN111590068B (en) * 2020-05-14 2022-05-24 苏州市凌志粉末冶金有限公司 Cam machining method
CN112570712A (en) * 2020-12-01 2021-03-30 菏泽双龙冶金机械有限公司 Powder metallurgy part and production method of powder metallurgy part with mounting through hole
CN113020601A (en) * 2021-02-05 2021-06-25 鞠真飞 Throwing fly cutter capable of building body for physical training and manufacturing method thereof
CN113020601B (en) * 2021-02-05 2023-03-10 鞠真飞 Throwing fly cutter capable of building body for physical training and manufacturing method thereof

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