CN104894459A - Method for preparing iron-based composite materials for automobile - Google Patents
Method for preparing iron-based composite materials for automobile Download PDFInfo
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- CN104894459A CN104894459A CN201510302615.4A CN201510302615A CN104894459A CN 104894459 A CN104894459 A CN 104894459A CN 201510302615 A CN201510302615 A CN 201510302615A CN 104894459 A CN104894459 A CN 104894459A
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Abstract
The invention relates to a method for preparing iron-based composite materials for an automobile. The method comprises the following steps that (1) following accessory materials including, by weight, 4.5 parts to 7.0 parts of Mo powder, 6.0 parts to 8.2 parts of Ni powder, 10.5 parts to 17.5 parts of Cr powder, 2.15 parts to 2.65 parts of C powder, 1.5 parts to 1.8 parts of Nb powder, 2.0 parts to 2.5 parts of rare earth powder, 1.0 part to 1.2 parts of Ti powder, 7.5 parts to 8.5 parts of Cu powder and 100 parts to 120 parts of Fe powder are weighed, the granularity of the powder ranges from 250 meshes to 400 meshes, 5 parts to 6 parts of lubricating agents by weight are added so as to carry out ball mill mixing, the mixing time ranges from 2 hours to 8 hours, and mixed powder is obtained; (2) pressing is carried out; (3) sintering is carried out; (4) cooling is carried out; (5) extrusion is carried out; and (6) heat treatment is carried out, the mixed powder is cooled to the indoor temperature, and the iron-based composite materials for the automobile are obtained. Through raw material selection and technological parameter optimization such as temperature and time selection in the segmented sintering system and optimization of a heat treatment system in the preparation process, the iron-based composite materials also can replace aluminum-based and magnesium-based composite materials to be applied to an automobile part.
Description
Technical field
The present invention relates to a kind of method that powder metallurgy prepares iron base composite material, especially relate to a kind of preparation method of automobile iron base composite material.
Background technology
Powder metallurgy is that a kind of logging material and part prepare forming technique in the advanced manufacturing technology of one, has energy-conservation, material-saving, efficient, near-net-shape, the advantage such as pollution-free.The consumption of powder metallurgy component is one of marks of the national development of automobile level of measurement one, also represents the developmental level of this state's powder metallurgy technology simultaneously.
In recent years, sintered metal product manufacturing enterprise of China strengthens Innovation Input, obtains very large progress in product stability and new product development etc., with the gap of developed countries just at rapid drop.But in product stability and high-end product (as high-performance pre-alloyed powder goods etc.), also there is larger gap, the high speed development demand of China's powder metallurgy can not be met.
But what can not be ignored is that iron base composite material introduces these cheap and abundant starting material of iron, can promote on a large scale, as engine part etc. at high temperature, at a high speed, the structural part that runs under wear-resistant condition, iron base composite material is more suitable for their need of work, and its cost performance is higher than aluminium base, magnesium base composite material.So from economic Cheng Mu, practical application effect two side and considering. the research of iron base composite material must be paid attention to.
Summary of the invention
An object of the present invention is the preparation method proposing a kind of automobile iron base composite material.
Two of object of the present invention is to propose a kind of automobile iron base composite material.
Realize especially by following technique means:
A preparation method for automobile iron base composite material, comprises following step:
(1) prepare burden: the batching taking following parts by weight: the Mo powder of 4.5-7.0 part, the Ni powder of 6.0-8.2 part, the Cr powder of 10.5-17.5 part, the C powder of 2.15-2.65 part, the Ti powder of the Nb powder of 1.5-1.8 part, the rare earth powder of 2.0-2.5 part, 1.0-1.2 part, the Cu powder of 7.5-8.5 part, the Fe powder of 100-120 part, described powder size is 250-400 order, the lubricant adding 5-6 weight part carries out ball milling mixing, and mixing time is 2-8 hour; Obtain mixed powder;
(2) suppress: the mixed powder described step (1) prepared is in the pressure system of 750-850Mpa; Obtain blank;
(3) sinter: blank prepared by described step (2) is carried out three-stage sintering, first paragraph sinters: sinter in reducing atmosphere, sintering temperature 1280-1310 DEG C, sintering time is 1-2h, then second segment sintering is carried out: sintering atmosphere is vacuum sintering, first vacuumize in stove, then in-furnace temperature is adjusted to 1200-1230 DEG C, sintering time is 1-2 hour, carry out three-stage sintering afterwards: in stove, pour argon gas, make pressure reach 10-15MPa, sintering temperature is 1150-1180 DEG C, and sintering time is 0.5-1.5h;
(4) cool: cool to room temperature with the furnace;
(5) extrude: blank is put into die finish and extrudes; Carry out local to the work in-process after extruding to cut, repair shaping;
(6) thermal treatment: the blank that step (5) obtains is heat-treated, described heat treatment step is: blank is heated rapidly to 1100-1150 DEG C, insulation 5-15min, then water-cooled is to 460-490 DEG C, insulation 1-2h, then by blank heating to 600-800 DEG C, insulation 2-3h, then furnace cooling 200-220 DEG C, insulation 2-3h, then air cooling obtains automobile-used iron base composite material to room temperature.
Further, described rare earth powder is La and/or Ce.
Further, described lubricant is Zinic stearas.
Automobile iron base composite material, adopts above-mentioned any one method to prepare.
The present invention is by the selection to preparation process Raw, the optimization of processing parameter, as the selection of the temperature-time of multi-steps sintering system, the optimization etc. of heat treating regime, make iron base composite material that aluminium base, magnesium base composite material also can be replaced to be applied on automobile component.
Embodiment
embodiment 1
A kind of preparation method of automobile iron base composite material, comprise following step: (1) prepares burden: the batching taking following parts by weight: the Mo powder of 4.65 parts, the Ni powder of 6.2 parts, the Cr powder of 13.45 parts, the C powder of 2.6 parts, the Nb powder of 1.72 parts, the La powder of 2.32 parts, the Ti powder of 1.1 parts, the Cu powder of 8.0 parts, the Fe powder of 105 parts, described powder size is 300 orders, and the Zinic stearas adding 5.6 weight parts carries out ball milling mixing, and mixing time is 6 hours; Obtain mixed powder;
(2) suppress: the mixed powder described step (1) prepared is in the pressure system of 800Mpa; Obtain blank;
(3) sinter: blank prepared by described step (2) is carried out three-stage sintering, first paragraph sinters: sinter in reducing atmosphere, sintering temperature 1290 DEG C, sintering time is 1.5h, then second segment sintering is carried out: sintering atmosphere is vacuum sintering, first vacuumize in stove, then in-furnace temperature is adjusted to 1220 DEG C, sintering time is 1.2 hours, carry out three-stage sintering afterwards: in stove, pour argon gas, make pressure reach 14MPa, sintering temperature is 1165 DEG C, and sintering time is 1h;
(4) cool: cool to room temperature with the furnace;
(5) extrude: blank is put into die finish and extrudes; Carry out local to the work in-process after extruding to cut, repair shaping;
(6) thermal treatment: the blank that step (5) obtains is heat-treated, described heat treatment step is: blank is heated rapidly to 1125 DEG C, insulation 12min, then water-cooled to 475 DEG C, insulation 1.5h, then by blank heating to 675 DEG C, insulation 2.4h, then furnace cooling 215 DEG C, insulation 3h, then air cooling obtains automobile-used iron base composite material to room temperature.
embodiment 2
A preparation method for automobile iron base composite material, comprises following step:
(1) prepare burden: the batching taking following parts by weight: the Mo powder of 5.5 parts, the Ni powder of 7.7 parts, the Cr powder of 13.6 parts, the C powder of 2.5 parts, the Nb powder of 1.6 parts, Ce and/or the La powder of 2.1 parts, the Ti powder of 1.1 parts, the Cu powder of 7.9 parts, the Fe powder of 110 parts, described powder size is 300 orders, the Zinic stearas adding 5.8 weight parts carries out ball milling mixing, and mixing time is 5 hours; Obtain mixed powder;
(2) suppress: the mixed powder described step (1) prepared is in the pressure system of 825Mpa; Obtain blank;
(3) sinter: blank prepared by described step (2) is carried out three-stage sintering, first paragraph sinters: sinter in reducing atmosphere, sintering temperature 1305 DEG C, sintering time is 1h, then second segment sintering is carried out: sintering atmosphere is vacuum sintering, first vacuumize in stove, then in-furnace temperature is adjusted to 1205 DEG C, sintering time is 1 hour, carry out three-stage sintering afterwards: in stove, pour argon gas, make pressure reach 13MPa, sintering temperature is 1175 DEG C, and sintering time is 0.8h;
(4) cool: cool to room temperature with the furnace;
(5) extrude: blank is put into die finish and extrudes; Carry out local to the work in-process after extruding to cut, repair shaping;
(6) thermal treatment: the blank that step (5) obtains is heat-treated, described heat treatment step is: blank is heated rapidly to 1105 DEG C, insulation 14min, then water-cooled to 475 DEG C, insulation 1.8h, then by blank heating to 670 DEG C, insulation 2.5h, then furnace cooling 205 DEG C, insulation 2.6h, then air cooling obtains automobile-used iron base composite material to room temperature.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention when not departing from principle of the present invention and aim, revising, replacing and modification.
Claims (4)
1. a preparation method for automobile iron base composite material, is characterized in that:
Comprise following step:
(1) prepare burden: the batching taking following parts by weight: the Mo powder of 4.5-7.0 part, the Ni powder of 6.0-8.2 part, the Cr powder of 10.5-17.5 part, the C powder of 2.15-2.65 part, the Ti powder of the Nb powder of 1.5-1.8 part, the rare earth powder of 2.0-2.5 part, 1.0-1.2 part, the Cu powder of 7.5-8.5 part, the Fe powder of 100-120 part, described powder size is 250-400 order, the lubricant adding 5-6 weight part carries out ball milling mixing, and mixing time is 2-8 hour; Obtain mixed powder;
(2) suppress: the mixed powder described step (1) prepared is in the pressure system of 750-850Mpa; Obtain blank;
(3) sinter: blank prepared by described step (2) is carried out three-stage sintering, first paragraph sinters: sinter in reducing atmosphere, sintering temperature 1280-1310 DEG C, sintering time is 1-2h, then second segment sintering is carried out: sintering atmosphere is vacuum sintering, first vacuumize in stove, then in-furnace temperature is adjusted to 1200-1230 DEG C, sintering time is 1-2 hour, carry out three-stage sintering afterwards: in stove, pour argon gas, make pressure reach 10-15MPa, sintering temperature is 1150-1180 DEG C, and sintering time is 0.5-1.5h;
(4) cool: cool to room temperature with the furnace;
(5) extrude: blank is put into die finish and extrudes; Carry out local to the work in-process after extruding to cut, repair shaping;
(6) thermal treatment: the blank that step (5) obtains is heat-treated, described heat treatment step is: blank is heated rapidly to 1100-1150 DEG C, insulation 5-15min, then water-cooled is to 460-490 DEG C, insulation 1-2h, then by blank heating to 600-800 DEG C, insulation 2-3h, then furnace cooling 200-220 DEG C, insulation 2-3h, then air cooling obtains automobile-used iron base composite material to room temperature.
2. the preparation method of automobile iron base composite material as claimed in claim 1, is characterized in that: described rare earth powder is La and/or Ce.
3. the preparation method of the iron base composite material described in claim 1-2, is characterized in that, described lubricant is Zinic stearas.
4. automobile iron base composite material, adopts above-mentioned any one claim to prepare.
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| CN201510302615.4A CN104894459A (en) | 2015-06-05 | 2015-06-05 | Method for preparing iron-based composite materials for automobile |
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| CN201510302615.4A CN104894459A (en) | 2015-06-05 | 2015-06-05 | Method for preparing iron-based composite materials for automobile |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077660A (en) * | 2016-06-15 | 2016-11-09 | 张荣斌 | A kind of powder metallurgy prepares the method for engine valve seat |
| CN109253196A (en) * | 2018-10-16 | 2019-01-22 | 北京天宜上佳高新材料股份有限公司 | A kind of brake friction pair and preparation method thereof |
| CN109338243A (en) * | 2018-11-07 | 2019-02-15 | 东莞市煜田新材料有限公司 | A kind of powder sintered titanium master alloy Heat-Treatment of Steel technique |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007147154A2 (en) * | 2006-06-16 | 2007-12-21 | Federal-Mogul Corporation | Spark plug |
| CN103071800A (en) * | 2012-11-23 | 2013-05-01 | 东睦(江门)粉末冶金有限公司 | Iron-based oil-containing bearing and manufacturing method thereof |
| CN104475738A (en) * | 2015-01-07 | 2015-04-01 | 王文姣 | Bracket of gear shifting mechanism of automobile transmission and manufacturing method thereof |
-
2015
- 2015-06-05 CN CN201510302615.4A patent/CN104894459A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007147154A2 (en) * | 2006-06-16 | 2007-12-21 | Federal-Mogul Corporation | Spark plug |
| CN103071800A (en) * | 2012-11-23 | 2013-05-01 | 东睦(江门)粉末冶金有限公司 | Iron-based oil-containing bearing and manufacturing method thereof |
| CN104475738A (en) * | 2015-01-07 | 2015-04-01 | 王文姣 | Bracket of gear shifting mechanism of automobile transmission and manufacturing method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077660A (en) * | 2016-06-15 | 2016-11-09 | 张荣斌 | A kind of powder metallurgy prepares the method for engine valve seat |
| CN106077660B (en) * | 2016-06-15 | 2018-04-17 | 威海双鑫金属制品有限责任公司 | A kind of method that powder metallurgy prepares engine valve seat |
| CN109253196A (en) * | 2018-10-16 | 2019-01-22 | 北京天宜上佳高新材料股份有限公司 | A kind of brake friction pair and preparation method thereof |
| CN109253196B (en) * | 2018-10-16 | 2020-07-14 | 北京天宜上佳高新材料股份有限公司 | Brake pad and brake friction pair using same |
| CN109338243A (en) * | 2018-11-07 | 2019-02-15 | 东莞市煜田新材料有限公司 | A kind of powder sintered titanium master alloy Heat-Treatment of Steel technique |
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Application publication date: 20150909 |