CN105695845A - Preparation process of heat dissipation and abrasion resistance material - Google Patents

Preparation process of heat dissipation and abrasion resistance material Download PDF

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Publication number
CN105695845A
CN105695845A CN201610089680.8A CN201610089680A CN105695845A CN 105695845 A CN105695845 A CN 105695845A CN 201610089680 A CN201610089680 A CN 201610089680A CN 105695845 A CN105695845 A CN 105695845A
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Prior art keywords
abrasive material
heat radiation
preparation technology
material preparation
powder
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CN201610089680.8A
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CN105695845B (en
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朱正吼
宋晖
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Shenzhen Jinghong New Energy Technology Co ltd
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Nanchang University
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0207—Using a mixture of prealloyed powders or a master alloy
    • C22C33/0228—Using a mixture of prealloyed powders or a master alloy comprising other non-metallic compounds or more than 5% of graphite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/006—Amorphous articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/003—Making ferrous alloys making amorphous alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C45/00—Amorphous alloys
    • C22C45/02—Amorphous alloys with iron as the major constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

The invention discloses a preparation process of a heat dissipation and abrasion resistance material. The material comprises the following ingredients of FeSi powder (comprising 6.0 wt%-10 wt% of Si and the balance Fe), Fe78Si(22-x)Bx amorphous powder (the content is the atomic percent and x is 9-15), Fe73.5Cu1Nb3Si13.5B9 amorphous powder (the content is the atomic percent), Fe2O3 raw materials, Mn3O4 raw materials and ZnO raw materials. The preparation process comprises three main steps of preparation of pre-sintered materials, preparation of a part blank and rapid sintering of the part blank. The preparation process has the advantages that (1) the prepared part is high in hardness, not prone to being damaged and high in percent of pass; (2) the powder is pressed and formed in a mould, the shape and size precision is good in controllability, and operation difficulty is low; and (3) the sintering temperature is low, and the requirement for a hearth is not high.

Description

A kind of heat radiation high-abrasive material preparation technology
Technical field
The present invention relates to a kind of heat radiation high-abrasive material preparation technology, belong to high-abrasive material preparing technical field。
Background technology
High-abrasive material occupies sizable proportion in the whole energy and Financial cost consumption of the industrial circles such as building materials, thermal power generation and metallurgical mine。Metal wear resistant material mainly has: potassium steel, steel alloy, ni-hard cast iron, various white cast-iron and rich chromium cast iron etc.。
Metal material under fluid matasomatism is susceptible to erosive wear and corrosion。Such as jet mill, the pipeline carrying dust and valve, drift sand pump etc.。This corrosion and abrasion industry wear and tear in proportion more than 5%。Erosive wear corrosion is the metal damage phenomenon produced due to high speed relative motion between metal surface and corrosive fluid, is erosive wear and the interactive result of electrochemical corrosion。Wash away weightless with the metal material that corrosion synergism causes much larger than washing away and corroding independent role sum。In general, mechanical wear accounts for Main Function in the erosion corrosion of metal；And electrochemical corrosion plays an important role in whole erosion corrosion。
High-abrasive material is due to high rigidity, it is difficult to Precision Machining, so wear part manufactures difficulty。
This patent is for fluid abrasion situation, it is provided that a kind of high-abrasive material design being easy to molding and preparation technology。
Summary of the invention
It is an object of the invention to provide a kind of heat radiation high-abrasive material preparation technology, whole preparation technology is controlled, the wear part batch production of different size, different-thickness can be realized, of many uses, the especially pulverizing wall in fluid abrasion situation such as jet mill, valve body etc.。
The present invention is achieved like this, and this heat radiation high-abrasive material step of preparation process is as follows:
(1) by Fe2O3、Mn3O4Mix homogeneously after weighing by 100/ (20 ~ 25)/(20 ~ 25) mass ratio with ZnO, is heated to 850 in Muffle furnaceoC × (60 ~ 120) min pre-burning, pulverizes after cooling, grinds, and sieves with 200 orders and 300 mesh sieves respectively, obtains (200 ~ 300) order Preburning material。
(2) (wherein content is atomic percent for Preburning material and abrasion-resistant metal powder body (60 order ~ 150 order FeSi(Si6 ~ 10wt%) powder body or Fe78Si (22-x) Bx, x=9 ~ 15) amorphous powder or Fe73.5Cu1Nb3Si13.5B9 (wherein content is atomic percent) amorphous powder) compare mix homogeneously by (10 ~ 20)/100 mass, add water after pelletize, under >=1500Mpa pressure, be molded into part blank (part present situation is determined depending on mould)。
(3) part blank carries out Fast Sintering in Medium Frequency Induction Heating Furnace and becomes finished part, intermediate frequency sense heating frequency 25kHz, heating power 4kW, heating (5 ~ 10) min。Part after Fast Sintering has higher intensity, hardness and heat transfer coefficient。
The invention have the characteristics that the part hardness (1) prepared is high, be hardly damaged, qualification rate is high；(2) powder body is compressing in a mold, and form and dimensional precision controllability is good, and operation easier is little；(3) sintering temperature is low, and burner hearth is less demanding。
Detailed description of the invention
Embodiment 1
Step 1: by Fe2O3、Mn3O4Mix homogeneously after weighing by 100/21/23 mass ratio with ZnO, is heated to 850 in Muffle furnaceoC × 60min pre-burning, pulverizes after cooling, grinds, and sieves with 200 orders and 300 mesh sieves respectively, obtains (200 ~ 300) order Preburning material。
Step 2: Preburning material and 150 order FeSi6.5 powder body than mix homogeneously, after the pelletize that adds water, are molded into part blank (part present situation is determined) depending on mould by 10/100 mass under >=1500Mpa pressure。
Step 3: part blank carries out Fast Sintering in Medium Frequency Induction Heating Furnace and becomes finished part, intermediate frequency sense heating frequency 25kHz, heating power 4kW, heating 5min。Part after Fast Sintering has higher hardness (>=HRC50), good heat-transfer。
Embodiment 2
Step 1: by Fe2O3、Mn3O4Mix homogeneously after weighing by 100/21/23 mass ratio with ZnO, is heated to 850 in Muffle furnaceoC × 60min pre-burning, pulverizes after cooling, grinds, and sieves with 200 orders and 300 mesh sieves respectively, obtains (200 ~ 300) order Preburning material。
Step 2: Preburning material and 150 order Fe78Si13B9 (wherein content is atomic percent) amorphous powder (lamellar) compare mix homogeneously by 10/100 mass, add water after pelletize, under >=1500Mpa pressure, be molded into part blank (part present situation is determined depending on mould)。
Step 3: part blank carries out Fast Sintering in Medium Frequency Induction Heating Furnace and becomes finished part, intermediate frequency sense heating frequency 25kHz, heating power 4kW, heating 5min。Part after Fast Sintering has higher hardness (>=HRC52), good heat-transfer。
Embodiment 3
Step 1: by Fe2O3、Mn3O4Mix homogeneously after weighing by 100/21/23 mass ratio with ZnO, is heated to 850 in Muffle furnaceoC × 60min pre-burning, pulverizes after cooling, grinds, and sieves with 200 orders and 300 mesh sieves respectively, obtains (200 ~ 300) order Preburning material。
Step 2: Preburning material and 150 order Fe73.5Cu1Nb3Si13.5B9 (wherein content is atomic percent) amorphous powder (lamellar) compare mix homogeneously by 10/100 mass, add water after pelletize, under >=1500Mpa pressure, be molded into part blank (part present situation is determined depending on mould)。
Step 3: part blank carries out Fast Sintering in Medium Frequency Induction Heating Furnace and becomes finished part, intermediate frequency sense heating frequency 25kHz, heating power 4kW, heating 5min。Part after Fast Sintering has higher hardness (>=HRC48), good heat-transfer。
Embodiment 4
Step 1: by Fe2O3、Mn3O4Mix homogeneously after weighing by 100/21/23 mass ratio with ZnO, is heated to 850 in Muffle furnaceoC × 60min pre-burning, pulverizes after cooling, grinds, and sieves with 200 orders and 300 mesh sieves respectively, obtains (200 ~ 300) order Preburning material。
Step 2: Preburning material and 150 order FeSi6.5 powder body than mix homogeneously, after the pelletize that adds water, are molded into part blank (part present situation is determined) depending on mould by 20/100 mass under >=1500Mpa pressure。
Step 3: part blank carries out Fast Sintering in Medium Frequency Induction Heating Furnace and becomes finished part, intermediate frequency sense heating frequency 25kHz, heating power 4kW, heating 5min。Part after Fast Sintering has higher hardness (>=HRC55), good heat-transfer。
Embodiment 5
Step 1: by Fe2O3、Mn3O4Mix homogeneously after weighing by 100/20/25 mass ratio with ZnO, is heated to 850 in Muffle furnaceoC × 60min pre-burning, pulverizes after cooling, grinds, and sieves with 200 orders and 300 mesh sieves respectively, obtains (200 ~ 300) order Preburning material。
Step 2: Preburning material and 150 order FeSi6.5 powder body than mix homogeneously, after the pelletize that adds water, are molded into part blank (part present situation is determined) depending on mould by 20/100 mass under >=1500Mpa pressure。
Step 3: part blank carries out Fast Sintering in Medium Frequency Induction Heating Furnace and becomes finished part, intermediate frequency sense heating frequency 25kHz, heating power 4kW, heating 5min。Part after Fast Sintering has higher hardness (>=HRC55), good heat-transfer。
Embodiment 6
Step 1: by Fe2O3、Mn3O4Mix homogeneously after weighing by 100/25/20 mass ratio with ZnO, is heated to 850 in Muffle furnaceoC × 60min pre-burning, pulverizes after cooling, grinds, and sieves with 200 orders and 300 mesh sieves respectively, obtains (200 ~ 300) order Preburning material。
Step 2: Preburning material and 150 order FeSi6.5 powder body than mix homogeneously, after the pelletize that adds water, are molded into part blank (part present situation is determined) depending on mould by 20/100 mass under >=1500Mpa pressure。
Step 3: part blank carries out Fast Sintering in Medium Frequency Induction Heating Furnace and becomes finished part, intermediate frequency sense heating frequency 25kHz, heating power 4kW, heating 5min。Part after Fast Sintering has higher hardness (>=HRC55), good heat-transfer。
More specifically, as better embodiment, FeSi powder constituents in the present invention: Si6.0% ~ 10%, all the other are ferrum, it is possible to be FeSi(6.5-10) powder body。

Claims (6)

1. a heat radiation high-abrasive material preparation technology, it is characterised in that processing step is:
(1) by Fe2O3、Mn3O4Mix homogeneously after weighing by 100/ (20 ~ 25)/(20 ~ 25) mass ratio with ZnO, is heated to 850 in Muffle furnaceoC × (60 ~ 120) min pre-burning, pulverizes after cooling, grinds, and sieves with 200 orders and 300 mesh sieves respectively, obtains 200 ~ 300 order Preburning materials;
(2) Preburning material is mixed homogeneously by (10 ~ 20)/100 mass ratio with abrasion-resistant metal powder body, after the pelletize that adds water, is molded into part blank;
(3) part blank carries out Fast Sintering in Medium Frequency Induction Heating Furnace and becomes finished part。
2. heat radiation high-abrasive material preparation technology according to claim 1, it is characterised in that described abrasion-resistant metal powder body is 60 order ~ 150 order FeSi powder body。
3. heat radiation high-abrasive material preparation technology according to claim 1, it is characterised in that described abrasion-resistant metal powder is Fe78Si (22-x) Bx amorphous powder, and wherein content is atomic percent, x=9 ~ 15。
4. heat radiation high-abrasive material preparation technology according to claim 1, it is characterised in that described abrasion-resistant metal powder is Fe73.5Cu1Nb3Si13.5B9 amorphous powder, and wherein content is atomic percent。
5. heat radiation high-abrasive material preparation technology according to claim 1, it is characterised in that in step (3), intermediate frequency sense heating frequency 25kHz, heating power 4kW, heating 5 ~ 10min。
6. heat radiation high-abrasive material preparation technology according to claim 1, it is characterised in that FeSi powder constituents: Si6.0% ~ 10wt%, all the other are ferrum。
CN201610089680.8A 2016-02-18 2016-02-18 A kind of heat dissipation wear-resistant material preparation process Active CN105695845B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108555298A (en) * 2018-05-30 2018-09-21 江苏师范大学 A kind of electronic industrial products heat sink material
CN109351961A (en) * 2018-11-20 2019-02-19 广州市光铭金属制品有限责任公司 A kind of 420L stainless steel material and preparation method thereof for cutterhead product
CN109570486A (en) * 2018-11-20 2019-04-05 广州市光铭金属制品有限责任公司 420 stainless steel materials of one kind and preparation method thereof

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CN1793020A (en) * 2005-11-17 2006-06-28 上海交通大学 High performant low consumption manganese zine ferrite material and preparation process thereof
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CN101857426A (en) * 2009-04-08 2010-10-13 广东江粉磁材股份有限公司 Broadband high impedance MnZn ferrite material and manufacture method thereof
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CN1793020A (en) * 2005-11-17 2006-06-28 上海交通大学 High performant low consumption manganese zine ferrite material and preparation process thereof
CN1962783A (en) * 2006-11-06 2007-05-16 南昌大学 Process for preparing amorphous nano-crystalline magnetic powder magnetic-conductive adhesive
CN1966550A (en) * 2006-11-06 2007-05-23 南昌大学 Method for making force-sensitive silicon rubber
CN101857426A (en) * 2009-04-08 2010-10-13 广东江粉磁材股份有限公司 Broadband high impedance MnZn ferrite material and manufacture method thereof
CN102212815A (en) * 2011-06-20 2011-10-12 南昌大学 Method for preparing ferroferric oxide coating on surface of iron-based amorphous strip by using high-temperature oxidation method

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108555298A (en) * 2018-05-30 2018-09-21 江苏师范大学 A kind of electronic industrial products heat sink material
CN109351961A (en) * 2018-11-20 2019-02-19 广州市光铭金属制品有限责任公司 A kind of 420L stainless steel material and preparation method thereof for cutterhead product
CN109570486A (en) * 2018-11-20 2019-04-05 广州市光铭金属制品有限责任公司 420 stainless steel materials of one kind and preparation method thereof

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Effective date of registration: 20220519

Address after: 518100 floor 2, building B, Huafeng property, Chengxi Industrial Zone, Hexi community, Xixiang street, Bao'an District, Shenzhen, Guangdong Province

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