CN103757462A - High performance titanium alloy explosion-proof tool and preparation method thereof - Google Patents
High performance titanium alloy explosion-proof tool and preparation method thereof Download PDFInfo
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- CN103757462A CN103757462A CN201210166736.7A CN201210166736A CN103757462A CN 103757462 A CN103757462 A CN 103757462A CN 201210166736 A CN201210166736 A CN 201210166736A CN 103757462 A CN103757462 A CN 103757462A
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Abstract
The invention relates to a high performance titanium alloy explosion-proof tool and preparation method thereof. The high performance titanium alloy explosion-proof tool is prepared by the following metals by mass ratio: 3.0-4% of titanium, 0.15-0.25% of chromium, 0.5-1.1% of aluminium and balance being copper. The preparation method comprises following steps: 1) casting: melting each raw material in a vacuum furnace at 1880+/-20 DEG C and insulating for 10+/-2 minutes, and then casting into a semi-finished product at vacuum state; 2) quenching: placing the semi-finished product which is treated by cutting cast gate and polishing into a heat treatment furnace, and heating to 880 +/-20 DEG C, and insulating for 10+/-2 minutes, and placing the semi-finished product into a liquid coolant which is clear water of normal temperature for rapidly cooling; then cooling in furnace. The invention has the advantages of simple production technology and abundant production raw material sources, good cost performance which is far better than those of aluminum bronze explosion-proof tool and beryllium bronze explosion-proof tool, good hardness which is higher than HRC42, good torque value which exceeds national standard A and C series, and good explosion-proof performance which meets the related standard EXIIC grade. The invention also has diamagnetic property.
Description
Technical field
The present invention relates to a kind of high-performance titanium-alloy explosion-prevention tool and preparation method thereof.
Background technology
Current domestic explosion-proof instrument mainly adopts xantal or lance bronze material to be made.The explosion-proof instrument that xantal material is made, its hardness, intensity saddle are low, and wherein hardness is more than HRC25, and torque value reaches B and the D series (low series) of the relevant explosion-proof instrument standard QB/T2613.1-7-2003 regulation of country.The anti-waterfall instrument hardness that bronzing material is made, intensity are higher than xantal material explosion-proof instrument, its hardness, intensity are higher, wherein hardness is more than HRC35, and torque value reaches A and the C series (high series) of the relevant explosion-proof instrument standard QB/T2613.1-7-2003 regulation of country.
The shortcoming of aluminium-bronze explosion-proof tool is that life cycle is short because its performance is low; Though bronzing 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 for a long time file and smelts the selenium tuberculosis that is easy to get.
Summary of the invention
Technical problem to be solved by this invention is exactly that current explosion-proof instrument is low-cost, lower performance: high Sui can, expensive shortcoming, for people provide a kind of new eight material, high performance explosion-proof instrument and make each technique.
The present invention is made respectively and forms in mass ratio by following metal:
Titanium: 3.0-4%, chromium: 015-0.25%, aluminium: 05-1.1%'s, all the other are copper.
Preparation method of the present invention comprises the steps:
1) casting: by the titanium .0 of total mass 3.0-4%, the copper of the chromium of 15-0.25%, 05-I.1% aluminium and surplus through 1880 ± 20 ℃ of high temperature melting and be incubated 10 ± 2 minutes, is then cast into work in-process in vacuum oven under vacuum state:
2) quench: after work in-process are cut to cast gate, polishing, put into heat treatment furnace, through 880 ± 20 ℃ of heating, and 1 slow-witted temperature 10 ± 2 minutes, the cooling fluid of putting into medium and be normal temperature clear water is cooling fast:
3) artificial aging is processed: the product after quenching is put into heat treatment furnace, through 430 ± 20 ' C heating, and be incubated 2-3 hour, then furnace cooling.
The length of artificial aging time is controlled according to the section thickness of the size of product and product, and the product soaking time that large product, cross section are thick is longer.
Above-mentioned steps 3) can optionally increase metalworking step before, the i of institute metalworking comprise cut, just, car. dig, draw, one or more working methods in brill, milling etc.
Production technique of the present invention is simple, rich raw material sources (China's metal titanium reserves and output account for No. 1 in the world), beanstalk riveting ratio is much better than the anti-* instrument of aluminium cream copper and the bronze explosion-proof instrument of file. in cost of manufacture, be equivalent to xantal like product, in situation far below bronzing like product (cost and unit cost are about bronzing explosion-proof instrument like product 60%), hardness, the performance index such as moment of torsion all super i are crossed more than berylliumbronze explosion-proof instrument-hardness reaches HRC42, torque value surpasses the quick-fried tool standard QB/T26 of national phase official seal 4] A and the C series (high series) of 31-7-2003 regulation, explosion-proof performance meets relevant criterion GBI 0686-] the 989 EXIIC levels (the highest explosion proof ratings) of stipulating.Meanwhile, due to the present invention also have diamagnetic performance (can be used for high-intensity magnetic field equipment install, maintenance, increase the use range of product), be a kind of high-performance, explosion-proof instrument regeneration product cheaply.
Embodiment
Embodiment 1: the preparation of doubleoffset ring spanner
I) casting: will account for the titanium of platform box total mass 36%, 018% chromium, 06% aluminium and the copper of surplus are put into vacuum oven through 1870 ' C fusing, and puppet temperature is cast molding under vacuum state after 10 minutes; After slightly cold, come out of the stove, after foundry goods is completely cooling, cuts and water day, polishing.
2) quench: the workpiece of cutting cast gate and polish was put into heat treatment furnace again and through 870 ℃ of heated wells, be incubated 10 minutes, coming out of the stove and putting into fast medium is that the cooling fluid of normal temperature clear water is cooling fast.
3) metalworking: the workpiece after quench treatment is carried out to following metalworking: the broaching routine angle of plum blossom hole～mono-.
4) artificial aging is processed: the workpiece through above-mentioned metalworking is put into heat treatment furnace again through 440 ℃ of heating, and be incubated 2 hours 30 minutes, then furnace cooling; Complete cooled workpiece is doubleoffset ring spanner finished product through polishing.
Embodiment 2: the preparation of chisel
1) casting: will account for the titanium of platform gold total mass 38%, 0.2% chromium, 08% 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; After slightly cold, come out of the stove: after foundry goods is completely cooling, cut cast gate, polishing.
2) quench: the workpiece of cutting cast gate and polished is put in eight heat treatment furnaces again and heated and be incubated 12 minutes through 900 ℃, coming out of the stove, it is cooling fast to put fast in the cooling fluid that A medium is normal temperature clear water, workpiece after quench treatment is again through polishing, then the workpiece of polishing is put into again to heat treatment furnace through 550 ℃ of heating, and be incubated 2 hours 30 minutes, furnace cooling then: complete cooled workpiece is chisel finished product through polishing.Chisel salient features is now: wherein hardness is more than HRC42.
Claims (2)
1. a high-performance titanium-alloy explosion-prevention tool, is characterized in that it is prepared from mass ratio by following metal: titanium: 3.0-4%, chromium: 0.15-0.25%, aluminium: 0.5-1.1%'s, all the other are copper.
2. the preparation method of high-performance titanium-alloy explosion-prevention tool described in claim 1, is characterized in that comprising the steps;
1) casting: by the copper of the aluminium of the chromium of the titanium of total mass 3.5-4Y0,0.15-0.25%, 0.5-1% and surplus.At vacuum oven, through 1880 ± 20 ℃ of high temperature melting and be incubated 10 ± 2 minutes, then under vacuum state, be cast into work in-process.
2) quench: after work in-process are cut to cast gate, polishing, put into heat treatment furnace, through 880 ± 20 ℃ of heating, and be incubated 10 ± 2 minutes, the cooling fluid of putting into medium and be normal temperature clear water is cooling fast:
3) artificial aging is processed: the product after quenching is put into heat treatment furnace, through 430 ± 20 ℃ of heating, and be incubated 2-3 hour, then furnace cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210166736.7A CN103757462A (en) | 2012-05-22 | 2012-05-22 | High performance titanium alloy explosion-proof tool and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210166736.7A CN103757462A (en) | 2012-05-22 | 2012-05-22 | High performance titanium alloy explosion-proof tool and preparation method thereof |
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| Publication Number | Publication Date |
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| CN103757462A true CN103757462A (en) | 2014-04-30 |
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| CN201210166736.7A Pending CN103757462A (en) | 2012-05-22 | 2012-05-22 | High performance titanium alloy explosion-proof tool and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281021A (en) * | 2020-10-26 | 2021-01-29 | 有研工程技术研究院有限公司 | Ultrahigh-strength stress relaxation-resistant excellent-bending-forming conductive copper alloy and preparation method and application thereof |
| CN113856931A (en) * | 2021-11-02 | 2021-12-31 | 朱凤英 | Improved aluminum profile spraying process |
-
2012
- 2012-05-22 CN CN201210166736.7A patent/CN103757462A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281021A (en) * | 2020-10-26 | 2021-01-29 | 有研工程技术研究院有限公司 | Ultrahigh-strength stress relaxation-resistant excellent-bending-forming conductive copper alloy and preparation method and application thereof |
| CN112281021B (en) * | 2020-10-26 | 2021-10-15 | 有研工程技术研究院有限公司 | Ultrahigh-strength stress relaxation-resistant excellent-bending-forming conductive copper alloy and preparation method and application thereof |
| CN113856931A (en) * | 2021-11-02 | 2021-12-31 | 朱凤英 | Improved aluminum profile spraying process |
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Application publication date: 20140430 |