CN1094239C - Permanent magnetic material with stainless property - Google Patents
Permanent magnetic material with stainless property Download PDFInfo
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- CN1094239C CN1094239C CN 97111733 CN97111733A CN1094239C CN 1094239 C CN1094239 C CN 1094239C CN 97111733 CN97111733 CN 97111733 CN 97111733 A CN97111733 A CN 97111733A CN 1094239 C CN1094239 C CN 1094239C
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Abstract
The present invention relates to a permanent magnetic material with stainless property, which has the alloy ingredients of 0.02 % to 0.12% of C, 0% to 1% of Si, 0% to 1% of Mn, 6% to 12% of Ni, 13% to 20% of Cr, 0% to 5% of Co and the rest is Fe. After the alloy ingredients are smelted, cast into ingots, peeled, forged, processed by heat, treated by solid solution, quenched by water, washed by acid, and processed by cold, and the finished material is tempered, etc., the material has the corrosion resistance and the workability of stainless steel and simultaneously has permanent magnetic performance. The permanent magnetic performance Br of the material is from 0.1 to 1.0T (1000-10000G), and Hc is from 8.0 to 32 KA/M (100-4000e). The material can be used for the fields which require the material to simultaneously have non-rust characteristics and permanent magnetic performance, such as medicine, power industry, etc.
Description
The present invention relates to a kind of permanent magnetic material and manufacture method thereof with stainless property.
The ductile permanent-magnetic material that can provide with commercial form at present, as materials such as Fe-Co-V, Fe-Cr-Co, distortion permanent magnetic steels, fields such as instrument and meter, electric machine industry, auto industry, microwave technology, audio-visual technology, computer technology, bioengineering have been widely used in.These materials have certain magnetic property under normal temperature, normal pressure, neutral medium, magnetic hardening state; But under some particular surroundings or specific condition, as in having Korrosionsmedium, its serviceability is restricted.Particularly in fields such as life science, medical science, except that requiring to have certain magnetic property, also need material to have good anti-atmosphere, salt tolerant, corrosion resisting property and good toughness, elasticity such as acidproof to the material that uses.Only the acupuncture made from this material with need is an example, and annual aggregate demand both at home and abroad just reaches more than 500,000,000.
Can for commercial ductile permanent-magnetic material under the magnetic hardening state, all not have corrosion resistance at present, and the toughness of material, poor flexibility; Can not satisfy instructions for use.In having the stainless steel-like alloy of good etch resistant properties, also can not satisfy use because of not having magnetic property again.Therefore, development, exploitation a kind of machinable, have corrosion resisting property, new material with magnetic property has crucial meaning.
Purpose of the present invention is exactly to prepare a kind of machinable, new section bar with corrosion resisting property, magnetic property by the metallurgical means of necessity, to satisfy under some specified conditions the special instructions for use to material.
For realizing purpose of the present invention, adopted following technical scheme: composition (wt%) is C 0.02～0.12, Si 0.11～1, Mn 0.57～1, Ni 6～12, Cr 13～20, and Co 0～5, the alloy of surplus Fe, in arc furnace or intermediate frequency furnace, smelt, be cast into steel ingot, strip off the skin after 1200～1250 ℃ of heating are rolled into 40 * 40mm square billet, by desired specification, be rolled into wire rod through 1150～1200 ℃, wire rod carried out 1050 ℃ solution treatment, and carry out shrend, wire rod carries out pickling processes after the shrend, again it is cold drawing to required size, carries out Secondary Solid Solution Treatment and pickling under 1000～1100 ℃, last deflection with 75～95% is cold drawing to a material.After stripping off the skin for the above-mentioned alloy smelting ingot casting of band, be heated to 1200～1250 ℃, be rolled into the slab of 100～200 * 4mm, after 1050 ℃ of solution treatment and shrend, carry out pickling, be cold-rolled to required specification through 75%～90% reduction ratio then.At last finished silk material or band are carried out 400～600 ℃, 0.5～1.5 hour temper.
Through the existing stainless corrosion resistance of material that technique scheme is made, machinability has obtained the permanent magnetism performance again simultaneously, the permanent magnetism performance Br0.1～1.0T of material wherein, Hc8.0～32KA/M.
With the magnetic acupuncture of this material, have characteristics such as magnetic property is stable, corrosion-resistant, anti-oxidant, needle body good toughness, elasticity height, safe and reliable, because the magnetic acupuncture is integrated traditional acupuncture function and magnetic therapy, evident in efficacyly be better than common acupuncture simultaneously.In addition, the short circuit that also can be used for power industry of this material is patrolled on the device of location.
Further specify technical scheme of the present invention below by embodiment.
Embodiment 1:
Composition (wt%) is C 0.06, Si 0.18, Mn 0.57, Ni 8.7, Cr 17.79, the alloy of surplus Fe is smelted in intermediate frequency furnace, is cast into steel ingot, strip off the skin after 1200 ℃ of heating, be rolled into 40 * 40mm square billet,, wire rod carried out 1050 ℃ solution treatment through 1200 ℃ of wire rods that are rolled into Φ 8mm, and carry out shrend, wire rod carries out pickling processes after the shrend, again it is cold drawing to required size, carries out Secondary Solid Solution Treatment and pickling under 1000 ℃, last deflection with 94% is cold drawing to a material, and carry out 500 ℃, and 0.5 hour temper, can obtain magnetic property is 4 π Ms 0.65T, Br 0.59T, the anti-corrosion permanent-magnet alloy of Hc 16.8KA/M.
Embodiment 2:
Composition (wt%) is C 0.02, Si 0.12, Mn 0.62, Ni 11.25, Cr 15.21,, the alloy of surplus Fe, in intermediate frequency furnace, smelt, be cast into steel ingot, strip off the skin after 1220 ℃ of heating are rolled into 40 * 40mm square billet, through 1180 ℃ of wire rods that are rolled into Φ 8mm, wire rod is carried out 1050 ℃ solution treatment, and carry out shrend, wire rod carries out pickling processes after the shrend, again it is cold drawing to required size, carry out Secondary Solid Solution Treatment and pickling under 1050 ℃, last deflection with 95% is cold drawing to a material, and carries out 550 ℃, 0.5 hour temper, can obtain magnetic property is 4 π Ms 0.56T, Br 0.41T, the anti-corrosion permanent-magnet alloy of Hc 22.4A/M.
Embodiment 3:
Composition (wt%) is C 0.03, Si 0.11, Mn 0.64, Ni 6.41, Cr 16.84, and Co 3.21, the alloy of surplus Fe, in arc furnace, smelt, be cast into steel ingot, strip off the skin after 1225 ℃ of heating are rolled into 40 * 40mm square billet, through 1225 ℃ of wire rods that are rolled into Φ 8mm, wire rod is carried out 1050 ℃ solution treatment, and carry out shrend, wire rod carries out pickling processes after the shrend, again it is cold drawing to required size, carry out Secondary Solid Solution Treatment and pickling under 1050 ℃, last deflection with 86% is cold drawing to a material, and carries out 500 ℃, 1.5 hour vacuum tempering handle, can obtain magnetic property is 4 π Ms 1.36T, Br 0.99T, the anti-corrosion permanent-magnet alloy of Hc 8.0KA/M.
Embodiment 4:
Composition (wt%) is C 0.05, Si 0.20, Mn 0.65, Ni 11.5, Cr 13.1, and the alloy of surplus Fe is smelted in intermediate frequency furnace, be cast into steel ingot, strip off the skin after 1200 ℃ of heating, be rolled into the slab of 200 * 4mm, through 1050 ℃ of solution treatment, and carry out shrend, through pickling processes,, and carry out 500 ℃ then with the cold rolling one-tenth band of 85% reduction ratio, 1.5 hour vacuum tempering handle, can obtain magnetic property is the anti-corrosion permanent-magnet alloy of 4 π Ms 0.55T, Br 0.39T, Hc 16.0KA/M.
Claims (3)
1. machinable material with anti-corrosion and magnetic property is characterized in that: alloying component (wt%) is C 0.02～0.12, and Si 0.11～1, and Mn 0.57～1, Ni 6～12, and Cr 13～20, and Co 0～5, surplus Fe, the permanent magnetism performance Br0.1～1.0T of material, Hc8.0～32KA/M.
One kind machinable have anti-corrosion and magnetic property the silk material processing method, alloying component (wt%) is C 0.02～0.12, Si 0.11～1, Mn 0.57～1, Ni 6～12, Cr 13～20, and Co 0～5, surplus Fe, the permanent magnetism performance Br0.1～1.0T of material, Hc8.0～32KA/M is characterized in that: smelt in arc furnace or intermediate frequency furnace, be cast into steel ingot, strip off the skin after 1200～1250 ℃ of heating, be rolled into 40 * 40mm square billet,, be rolled into wire rod through 1150～1200 ℃ by desired specification, wire rod carried out 1050 ℃ solution treatment, and carrying out shrend, wire rod carries out pickling processes after the shrend, again it is cold drawing to required size, under 1000～1100 ℃, carry out Secondary Solid Solution Treatment and pickling, last deflection with 75～95% is cold drawing to a material, at last the finished silk material is carried out 400～600 ℃, 0.5～1.5 hour temper.
3. machinable processing method with band of anti-corrosion and magnetic property, alloying component (wt%) is C 0.02～0.12, Si 0.11～1, Mn 0.57～1, and Ni 6～12, and Cr 13～20, Co 0～5, surplus Fe, the permanent magnetism performance Br0.1～1.0T of material, Hc8.0～32KA/M, it is characterized in that: in arc furnace or intermediate frequency furnace, smelt, be cast into steel ingot, be heated to 1200～1250 ℃ after stripping off the skin, be rolled into the slab of 100～200 * 4mm, after 1050 ℃ of solution treatment and shrend, carry out pickling, be cold-rolled to required specification through 75%～90% reduction ratio then, at last the finished product band carried out 400～600 ℃, 0.5～1.5 hour temper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97111733 CN1094239C (en) | 1997-05-05 | 1997-05-05 | Permanent magnetic material with stainless property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97111733 CN1094239C (en) | 1997-05-05 | 1997-05-05 | Permanent magnetic material with stainless property |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1198576A CN1198576A (en) | 1998-11-11 |
| CN1094239C true CN1094239C (en) | 2002-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97111733 Expired - Lifetime CN1094239C (en) | 1997-05-05 | 1997-05-05 | Permanent magnetic material with stainless property |
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| Country | Link |
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| CN (1) | CN1094239C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112652481B (en) * | 2020-12-15 | 2023-04-07 | 杭州科兴磁业有限公司 | Processing technology of iron-chromium-cobalt semi-hard magnetic |
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1997
- 1997-05-05 CN CN 97111733 patent/CN1094239C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1198576A (en) | 1998-11-11 |
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Effective date of registration: 20090508 Address after: Technical and Quality Department of Shijingshan Shougang Group Corporation, Beijing: 100041 Co-patentee after: Beijing Beiye Functional Materials Corporation Patentee after: Shougang Address before: Technical and Quality Department of Shijingshan Shougang Group Corporation, Beijing: 100041 Patentee before: Capital Iron & Steel General Company |
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| CX01 | Expiry of patent term |
Granted publication date: 20021113 |
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| CX01 | Expiry of patent term |