CN101089211A - High performance titanium alloy explosion-proof and preparation method thereof - Google Patents
High performance titanium alloy explosion-proof and preparation method thereof Download PDFInfo
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- CN101089211A CN101089211A CN 200710025038 CN200710025038A CN101089211A CN 101089211 A CN101089211 A CN 101089211A CN 200710025038 CN200710025038 CN 200710025038 CN 200710025038 A CN200710025038 A CN 200710025038A CN 101089211 A CN101089211 A CN 101089211A
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Abstract
This invention relates to high performance explosion-proof titanium alloy tool, which alloy containing: titanium 3.5-4%, chromium 0.15-0.25%, aluminium 0.5-1% and the rest copper. The production steps are: (1)heating the raw materials at temperature of 1880+-20deg.C for 10+g2min, and then casting the alloy into semi-product at vacuum condition; (2), the semi-product, after cutting gate-stub and burnishing, putting into heat-treatment oven, being heated at temperature of 880+-20deg.C, and keeping at that temperature for 10+-2min, and then quick cooling by putting the same into ambient temperature water as coolant; (3), proceeding artificial aging by putting the product into heat treatment oven at temperature of 430+-20deg.C for 2-3Hrs, and then natural cooling in the oven.
Description
Technical field
The present invention relates to a kind of high-performance titanium-alloy explosion-prevention tool and preparation method thereof.
Background technology
Present domestic explosion-proof instrument mainly adopts xantal or beryllium-bronze material to be made.The explosion-proof instrument that the xantal material is made, its hardness, intensity are lower, and wherein hardness is more than the HRC25, and torque value reaches the B and the D series (low series) of the relevant explosion-proof instrument standard QB/T2613.1 of country～7-2003 regulation.Explosion-proof instrument hardness, intensity that beryllium-bronze material is made are higher than xantal material explosion-proof instrument, its hardness, intensity are higher, wherein hardness is more than the HRC35, and torque value reaches the A and the C series (high series) of the relevant explosion-proof instrument standard QB/T2613.1 of country～7-2003 regulation.
The shortcoming of aluminium-bronze explosion-proof tool is that because of its performance is low life cycle is short; Though berylliumbronze explosion-proof instrument performance is higher than aluminium-bronze explosion-proof tool, its cost and unit cost are quite high, are about the twice of xantal like product.Beryllium has certain injury to human body when smelting in addition, is engaged in beryllium for a long time and smelts the selenium tuberculosis that is easy to get.
Summary of the invention
Technical problem to be solved by this invention is exactly present explosion-proof instrument low cost, lower performance; High-performance, expensive shortcoming, for people provide a kind of novel material, high performance explosion-proof instrument and preparation technology thereof.
The present invention is prepared from by mass ratio by following metal:
Titanium: 3.5-4%, chromium: 0.15-0.25%, aluminium: 0.5-1%'s, all the other are copper.
Preparation method of the present invention comprises the steps:
1) casting:, in vacuum oven, through 1880 ± 20 ℃ of high temperature melting and be incubated 10 ± 2 minutes, under vacuum state, be cast into work in-process then with the titanium of total mass 3.5-4%, the chromium of 0.15-0.25%, the aluminium of 0.5-1% and the copper of surplus;
2) quench: put into heat treatment furnace after work in-process are cut cast gate, polishing,, and be incubated 10 ± 2 minutes, put into medium and be the cooling fluid of normal temperature clear water and cool off fast through 880 ± 20 ℃ of heating;
3) artificial aging is handled: the product after will quenching is put into heat treatment furnace, through 430 ± 20 ℃ of heating, and is incubated 2-3 hour, then furnace cooling.
The length of artificial aging time is according to the section thickness control of the size of product and product, and the product soaking time that big product, cross section are thick is longer.
Above-mentioned steps 3) can optionally increase the metalworking step before, described metalworking comprise cut, cut, car, one or more working methods in digging, draw, bore, mill etc.
Production technique of the present invention is simple, rich raw material sources (China's metal titanium reserves and output account for the No. 1 in the world), its cost performance is much better than aluminium-bronze explosion-proof tool and berylliumbronze explosion-proof instrument, be equivalent to the xantal like product in cost of manufacture, under the situation far below berylliumbronze like product (cost and unit cost are about berylliumbronze explosion-proof instrument like product 60%), hardness, performance index such as moment of torsion are all above the berylliumbronze explosion-proof instrument, hardness reaches more than the HRC42, torque value surpasses the A and the C series (high series) of the relevant explosion-proof instrument standard QB/T2613.1 of country～7-2003 regulation, and explosion-proof performance satisfies the EXIIC level (the highest explosion proof ratings) of relevant criterion GB10686-1989 regulation.Simultaneously, because the present invention also has diamagnetic performance (equipment that can be used for high-intensity magnetic field institute is installed, maintenance, the use range of increase product), be a kind of high-performance, explosion-proof instrument regeneration product cheaply.
Embodiment
Embodiment 1: the preparation of doubleoffset ring spanner
1) casting: will account for the titanium of alloy total mass 3.6%, 0.18% chromium, 0.6% the aluminium and the copper of surplus are put into vacuum oven through 1870 ℃ of fusings, are incubated cast molding under vacuum state after 10 minutes; Come out of the stove after cold slightly; After cooling off fully, cuts on foundry goods cast gate, polishing.
2) quench: will cut cast gate and the workpiece of polish is put into heat treatment furnace again and heated and be incubated 10 minutes through 870 ℃, coming out of the stove and putting into medium fast is that the cooling fluid of normal temperature clear water is cooled off fast.
3) metalworking: the workpiece after quench treatment is carried out following metalworking: broaching plum blossom hole----chamfering.
4) artificial aging is handled: will put into heat treatment furnace again through 440 ℃ of heating through the workpiece of above-mentioned metalworking, and be incubated 2 hours 30 minutes, then furnace cooling; Complete cooled workpiece is the doubleoffset ring spanner finished product through polishing.
The described doubleoffset ring spanner basic mechanical design feature of present embodiment is: hardness is more than HRC42, and torque value surpasses to the A of the relevant explosion-proof instrument standard QB/T2613.1 of country ~ 7-2003 regulation and C series (high series) requirement.
Embodiment 2: the preparation of chisel
1) casting: will account for the titanium of alloy total mass 3.8%, 0.2% chromium, 0.8% the aluminium and the copper of surplus are put into vacuum oven through 1890 ℃ of fusings, are incubated cast molding under vacuum state after 12 minutes; Come out of the stove after cold slightly; After cooling off fully, cuts on foundry goods cast gate, polishing.
2) quench: will cut cast gate and the workpiece of polish is put into heat treatment furnace again and heated and be incubated 12 minutes through 900 ℃, coming out of the stove and putting into medium fast is that the cooling fluid of normal temperature clear water is cooled off fast, workpiece after quench treatment is again through polishing, the workpiece that to polish is put into heat treatment furnace again through 450 ℃ of heating then, and be incubated 2 hours 40 minutes, furnace cooling then; Complete cooled workpiece is the chisel finished product through polishing.The chisel salient features of this moment is: wherein hardness is more than HRC42.
Claims (4)
1, a kind of high-performance titanium-alloy explosion-prevention tool is characterized in that it is prepared from by mass ratio by following metal:
Titanium: 3.5-4%, chromium: 0.15-0.25%, aluminium: 0.5-1%'s, all the other are copper.
2, the preparation method of the described high-performance titanium-alloy explosion-prevention tool of claim 1 is characterized in that comprising the steps:
1) casting:, in vacuum oven, through 1880 ± 20 ℃ of high temperature melting and be incubated 10 ± 2 minutes, under vacuum state, be cast into work in-process then with the titanium of total mass 3.5-4%, the chromium of 0.15-0.25%, the aluminium of 0.5-1% and the copper of surplus;
2) quench: put into heat treatment furnace after work in-process are cut cast gate, polishing,, and be incubated 10 ± 2 minutes, put into medium and be the cooling fluid of normal temperature clear water and cool off fast through 880 ± 20 ℃ of heating;
3) artificial aging is handled: the product after will quenching is put into heat treatment furnace, through 430 ± 20 ℃ of heating, and is incubated 2-3 hour, then furnace cooling.
3, as the preparation method of high-performance titanium-alloy explosion-prevention tool as described in the claim 2, it is characterized in that before step 3), also comprising high metalworking step.
4, the preparation method of high-performance titanium-alloy explosion-prevention tool as claimed in claim 3, it is characterized in that described metalworking step comprise cut, cut, car, in digging, draw, bore, milling one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100250384A CN100494435C (en) | 2007-07-10 | 2007-07-10 | High performance titanium alloy explosion-proof tool and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100250384A CN100494435C (en) | 2007-07-10 | 2007-07-10 | High performance titanium alloy explosion-proof tool and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101089211A true CN101089211A (en) | 2007-12-19 |
| CN100494435C CN100494435C (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100250384A Expired - Fee Related CN100494435C (en) | 2007-07-10 | 2007-07-10 | High performance titanium alloy explosion-proof tool and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111118335A (en) * | 2020-01-17 | 2020-05-08 | 河北中泊防爆工具集团股份有限公司 | Titanium bronze alloy material and preparation method and application thereof |
-
2007
- 2007-07-10 CN CNB2007100250384A patent/CN100494435C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111118335A (en) * | 2020-01-17 | 2020-05-08 | 河北中泊防爆工具集团股份有限公司 | Titanium bronze alloy material and preparation method and application thereof |
| CN111118335B (en) * | 2020-01-17 | 2022-04-08 | 河北中泊防爆工具集团股份有限公司 | Titanium bronze alloy material and preparation method and application thereof |
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| Publication number | Publication date |
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| CN100494435C (en) | 2009-06-03 |
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Granted publication date: 20090603 Termination date: 20120710 |