CN101705446A - Preparation technology of titanium carbide reinforced high-speed steel base composite material - Google Patents
Preparation technology of titanium carbide reinforced high-speed steel base composite material Download PDFInfo
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- CN101705446A CN101705446A CN200910218840A CN200910218840A CN101705446A CN 101705446 A CN101705446 A CN 101705446A CN 200910218840 A CN200910218840 A CN 200910218840A CN 200910218840 A CN200910218840 A CN 200910218840A CN 101705446 A CN101705446 A CN 101705446A
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Abstract
The invention discloses a preparation technology of titanium carbide reinforced high-speed steel base composite material, mainly comprising the following steps: weaving a titanium wire mesh with titanium wires; preparing mesh-type three-dimensional skeleton structure by tailoring, rolling by layers or overlying; manufacturing a casting mold according to casting technique; putting the titanium wire mesh-type three-dimensional skeleton into a casting mold cavity in advance; smelting high-speed steel to be poured into the casting mold cavity; cooling and cleaning to obtain a titanium wire-high-speed steel binary material prefabricated body; putting the titanium wire-high-speed steel binary material prefabricated body into a thermal treatment furnace; heating to the carbide forming temperature for preserving heat to obtain titanium carbide reinforced high-speed steel base composite material. The composite material prepared with the method fully performs high wear-resisting property of titanium carbide hard phase as well as favourable ductility, convenient regulation and control and reliable technology of high-speed steel, solves the problems of incomplete reaction of composite material, uneven wild phase particle distribution, weakened wild phase interface pollution and the like, and can be widely applied to the wear-resisting fields of mines, electric power, metallurgy, coal, building materials and the like.
Description
Technical field
The invention belongs to the metal-base composites technical field, particularly preparation technology of titanium carbide reinforced high-speed steel base composite material.
Background technology
Rapid steel belongs to the high-carbon high-alloy Ledeburitic steel, through obtaining very high hardness after the special process processing, and under hot conditions, use, still keep high rigidity and high-wearing feature, therefore be widely applied to the cutting tool of making various lathes, also can be applicable to high-load mould, high-temperature bearing and other heat-resistant antifriction component or the like.Rapid steel has reached the quite sophisticated stage so far through the developing history of last 100 years.In five sixties of 20th century, it is that rapid steel (is represented with W6Mo5Cr4V2 that western developed country all generally adopts W-Mo, be the M2 steel) to replace most of W be that (with W18Cr4V is representative to rapid steel, be the T1 steel), and up to the eighties in last century, W-Mo was that rapid steel is just developed rapidly in China, had accounted for nearly 95% of rapid steel ultimate production by 1994.These W-Mo are that rapid steel mainly comprises: W6Mo5Cr4V2, W6Mo5Cr4V2A1 (being called for short M1A1), W9Mo3Cr4, W8Mo5Cr4VCo3N, W12Mo3Cr4VCo3N, W9Mo3Cr4VCo5, W12Mo3Cr4V3N, W9Mo3Cr4V3 or the like; Also have some low-alloy high-speed steels to comprise 301 steel, D106 and GM steel etc.
As cutting technology crucial in the machinery manufacturing industry, along with the modern material science and technology development has also obtained lifting at full speed.At present, many superhard tool materials such as TiC base cemented carbide, coated carbides, pottery, sintering metal, cubic boron nitride, polycrystalline diamond etc. occur, aspect cutting speed, efficient and cutting difficult-to-machine material, significantly be better than rapid steel.But rapid steel aspect toughness, the instrument formability but be any fragility superhard tool material can't reach, especially when making multitool, precision cutting tool, has significant cost advantage, therefore making complex cutting tool, standing the machining of greater impact vibration and cut aspect the general material, rapid steel still occupies critical role, and usage quantity is much larger than Wimet.
Though in tool material, rapid steel is keeping fundamental position, along with the development of modern equipment technology and the deterioration of operating mode, its wear resistance demands carrying out a large amount of improvements urgently.The production technique of stratiform composite high-speed steel roller has been invented in patent [200810246840.0], [200510038980.5], [200810010287.0], [03140532.0], low wear-resisting materials such as spheroidal graphite cast iron are cast as the core of roll, the outside is the rapid steel material, forms the double-layer composite material structure.
The present invention mainly adopts recombining process to prepare the high-wearing feature high-speed steel-base composite material of in-situ chemical reaction synthesizing titanium carbide.
Summary of the invention
The purpose of this invention is to provide preparation technology of titanium carbide reinforced high-speed steel base composite material, in high speed steel substrate, form the titanium carbide hard phase that a large amount of reaction ins generate by this technology, and effectively be combined as a whole with rapid steel, given full play to the high abrasion characteristic of hard phase, the excellent toughness that has also kept matrix metal, thereby reach best Performance Match, can improve about 3 times to the wear resistance of rapid steel.This technology can be made the product of multiple structural shape, and development prospect is wide.
Technical scheme of the present invention is achieved in that
(1) with titanium silk braiding titanium wire network (1);
(2) with titanium wire network (1) cutting, multilayer rolls or superpose, and is prefabricated into netted cubic cage;
(3) carry out pickling and remove the greasy dirt foreign material being prefabricated into netted three-dimensional skeleton;
(4) make casting mold by the casting technique requirement;
(5) the three-dimensional skeleton of ready-formed titanium wire network (1) shape is put into casting mold (2);
(6) smelt rapid steel (3), obtain liquid rapid steel;
(7) liquid rapid steel is poured into casting mold, obtain titanium silk-rapid steel binary material precast body;
(8) cooling cleaning back is inserted heat treatment furnace to titanium silk-rapid steel binary material precast body;
(9) under the carbide formation temperature, be incubated;
(10) come out of the stove behind the furnace cooling, promptly make titanium carbide reinforced high-speed steel base composite material (4).
Described titanium silk (1) diameter is 0.1～2.5mm; Described titanium wire network (1) is woven into single or multiple lift, and titanium silk spacing is 0.2～10mm, also can suitably increase spacing according to the operating mode needs.
In the described step (2), make titanium wire network (1) cubic cage according to the size and the specification of part.Described step (9) carbide formation temperature is 1080 ℃～1350 ℃, and soaking time is 30min～120min.
Compared with prior art, the present invention has the following advantages:
1, the principle of oozing by casting is made into precast body to the solid netted skeletal fixation of titanium silk in high speed steel substrate, guaranteed the homogeneity of carbide forming element titanium in matrix;
2, in heat treatment furnace, by 1080 ℃～1350 ℃, soaking time is 30min～120min, make titanium atom carry out the abundant diffusion of middle long-range, permeate in the high speed steel substrate, and with rapid steel in carbon atom generation reaction in, naturally generate the titanium carbide hard-phase particles, because 1080 ℃～1350 ℃ of humidity provinces are lower than the liquefaction temperature of rapid steel, therefore the diffusion of titanium atom belongs to solid-state diffusion, titanium carbide also generates at solid-state reaction in down, floating and the segregation of having avoided titanium carbide and matrix metal difference of specific gravity to cause, solved hard and be difficult to a disperse and an equally distributed Composite Preparation difficult problem mutually, and can make whole titaniums participate in reaction in generation titanium carbide.
3, the titanium carbide hard belongs to inner in-situ chemical reaction generation mutually, so the interface cleaning of titanium carbide granule is pollution-free, be combined into one with high speed steel substrate, has good interface in conjunction with effect, avoided adding the wild phase interface weakens problem on the conventional composite materials preparation technologies such as hard particles, the matrix material that obtains had both kept the excellent toughness of rapid steel, and the high-wearing feature of titanium carbide hard phase has been arranged again, had further promoted the wear-out life of material.
4, according to the needs of part, both can be positioned over titanium wire network the part of casting mold, obtain local attrition resistant part behind the cast rapid steel, composite bed thickness can be adjusted arbitrarily according to working condition requirement; Also can be positioned over titanium wire network in the whole casting mold die cavity, obtain whole attrition resistant part behind the cast rapid steel, process controllability is strong.
Description of drawings
Fig. 1 is a schema of the present invention
Fig. 2 is the casting mold schematic cross-section that presets titanium wire network
Fig. 3 is a blanking liner plate precast body schematic cross-section
Fig. 4 is whole titanium carbide reinforced high-speed steel base composite material blanking liner plate schematic cross-section
Fig. 5 strengthens high-speed steel-base composite material blanking liner plate schematic section for the partial carbonization titanium
Embodiment
The invention will be further described below in conjunction with embodiment and accompanying drawing.
Embodiment 1: make integral composite blanking liner plate
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, concrete operations step is as follows:
(1) with 0.5mm titanium silk braiding titanium wire network 1, titanium silk spacing is 2mm;
(2) titanium wire network 1 is cut into rectangle by blanking liner plate length and height specification;
(3) rectangle titanium wire network 1 is carried out pickling;
(4) make casting mold 2 by the casting technique requirement;
(5) titanium wire network 1 multilayer that cuts is superposeed, and be placed into the die cavity of water glass sand mold 2;
(6) smelt rapid steel 3, obtain liquid rapid steel;
(7) adopt gravity casting method that liquid rapid steel 3 is poured into casting mold, liquid rapid steel is full of the space of netted three-dimensional skeleton, obtains titanium silk-rapid steel binary material precast body;
(8) after the cleaning of cooling off-type, titanium silk-rapid steel binary material precast body is inserted heat treatment furnace;
(9) about 1300 ℃ of temperature, be incubated 60min down;
(10) come out of the stove behind the furnace cooling, promptly obtain whole titanium carbide reinforced high-speed steel base composite material blanking liner plate 4.
Embodiment 2: make local composite material blanking liner plate
As Fig. 1 and shown in Figure 5, the concrete operations step is as follows:
(1) with 2.0mm titanium silk braiding titanium wire network 1, titanium silk spacing is 10mm;
(2) titanium wire network 1 is cut into rectangle by blanking liner plate length and half height specification;
(3) the rectangle titanium wire network is carried out pickling;
(4) make casting mold 2 by the casting technique requirement;
(5) titanium wire network 1 multilayer that cuts is superposeed, and be placed into the die cavity of water glass sand mold 2;
(6) smelt rapid steel 3, obtain liquid rapid steel;
(7) adopt gravity casting method that liquid rapid steel 3 is poured into casting mold, obtain local titanium silk-rapid steel binary material precast body;
(8) after the cleaning of cooling off-type, local titanium silk-rapid steel binary material precast body is inserted heat treatment furnace;
(9) about 1150 ℃ of temperature, be incubated 120min down;
(10) come out of the stove behind the furnace cooling, promptly obtain the partial carbonization titanium and strengthen high-speed steel-base composite material blanking liner plate 4.
Claims (5)
1. preparation technology of titanium carbide reinforced high-speed steel base composite material, it is characterized in that: this preparation technology may further comprise the steps:
(1) with titanium silk braiding titanium wire network (1);
(2) with titanium wire network (1) cutting, multilayer rolls or superpose, and is prefabricated into netted cubic cage;
(3) carry out pickling and remove the greasy dirt foreign material being prefabricated into netted three-dimensional skeleton;
(4) make casting mold (2) by the casting technique requirement;
(5) the three-dimensional skeleton of ready-formed titanium wire network shape is put into casting mold (2);
(6) smelt rapid steel (3), obtain liquid rapid steel;
(7) liquid rapid steel (3) is poured into casting mold (2), obtain titanium silk-rapid steel binary material precast body;
(8) cooling cleaning back is inserted heat treatment furnace to titanium silk-rapid steel binary material precast body;
(9) under the carbide formation temperature, be incubated;
(10) come out of the stove behind the furnace cooling, promptly make titanium carbide reinforced high-speed steel base composite material (4).
2. preparation technology of titanium carbide reinforced high-speed steel base composite material according to claim 1 is characterized in that: described titanium filament diameter is 0.1～2.5mm.
3. preparation technology of titanium carbide reinforced high-speed steel base composite material according to claim 1 is characterized in that: described titanium wire network (1) is woven into single or multiple lift, and titanium silk spacing is 0.2～10mm, also can suitably increase spacing according to the operating mode needs.
4. preparation technology of titanium carbide reinforced high-speed steel base composite material according to claim 1 is characterized in that: described step (2), make the titanium wire network cubic cage according to the size and the specification of part.
5. preparation technology of titanium carbide reinforced high-speed steel base composite material according to claim 1 is characterized in that: described step (9) carbide formation temperature is 1080 ℃～1350 ℃, and soaking time is 30min～120min.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912958A (en) * | 2010-07-16 | 2010-12-15 | 昆明理工大学 | In-situ synthesizing and compounding method of desilting tip |
| CN101943234A (en) * | 2010-08-06 | 2011-01-12 | 昆明理工大学 | Compound technology of titanium carbide reinforced cast iron base brake disc |
| CN102071378A (en) * | 2011-01-14 | 2011-05-25 | 南京信息工程大学 | Wear resistant steel material and preparation method thereof |
| CN103182506A (en) * | 2013-03-29 | 2013-07-03 | 华南理工大学 | TiCp/M2 high-speed steel composite material and SPS (spark plasma sintering) preparation method thereof |
| CN105463328A (en) * | 2015-12-10 | 2016-04-06 | 安徽相邦复合材料有限公司 | In-situ mixed particle reinforcement steel-based composite material and preparing method thereof |
-
2009
- 2009-11-09 CN CN200910218840A patent/CN101705446A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912958A (en) * | 2010-07-16 | 2010-12-15 | 昆明理工大学 | In-situ synthesizing and compounding method of desilting tip |
| CN101943234A (en) * | 2010-08-06 | 2011-01-12 | 昆明理工大学 | Compound technology of titanium carbide reinforced cast iron base brake disc |
| CN102071378A (en) * | 2011-01-14 | 2011-05-25 | 南京信息工程大学 | Wear resistant steel material and preparation method thereof |
| CN103182506A (en) * | 2013-03-29 | 2013-07-03 | 华南理工大学 | TiCp/M2 high-speed steel composite material and SPS (spark plasma sintering) preparation method thereof |
| CN105463328A (en) * | 2015-12-10 | 2016-04-06 | 安徽相邦复合材料有限公司 | In-situ mixed particle reinforcement steel-based composite material and preparing method thereof |
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Open date: 20100512 |