CN102436863A - Copper wire used for plastic manometry sensitive element - Google Patents
Copper wire used for plastic manometry sensitive element Download PDFInfo
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- CN102436863A CN102436863A CN2011102662578A CN201110266257A CN102436863A CN 102436863 A CN102436863 A CN 102436863A CN 2011102662578 A CN2011102662578 A CN 2011102662578A CN 201110266257 A CN201110266257 A CN 201110266257A CN 102436863 A CN102436863 A CN 102436863A
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- copper
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- pressure measurement
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Abstract
The invention discloses a copper wire used for a plastic manometry sensitive element. The copper wire provided by the invention comprises the following components in percentage by weight: 0.004%-0.010% of boron and the balance of oxygen-free copper. The copper wire provided by the invention is mainly used for a plastic manometry sensitive element copper post and a copper ball.
Description
Technical field
The present invention relates to a kind of plasticity pressure measurement senser and use copper cash.
Background technology
Plasticity pressure measurement senser is the raw material that are used to prepare plasticity pressure measurement senser copper post with copper cash.Senser copper post is to be processed through certain machining by copper cash; Therefore indexs such as the mechanical strength of copper cash, uniformity, stability directly affect strong property, the uniformity of copper post, the performance index of surface strength, and the copper post is criticized with criticize between stability.So the performance impact of copper cash the accuracy of plasticity pressure measurement senser copper post test gunpowder breech pressure.
At present; China's plasticity pressure measurement senser is an oxygen-free copper with the used raw material of copper cash; This oxygen-free copper composition is copper content>=99.99%; Oxygen content≤0.001%, the copper cash of being processed by this oxygenless copper material has good homogeneous property, but has the soft partially defective of strong property by the copper post of this copper cash preparation; The strong property of so-called copper post is meant copper post height or deflection after the pressure of copper post under certain static loading force value, and there be the soft partially direct use of copper post in plasticity pressure measurement utensil that influence of strong property in the copper post; And because the technical process that oxygen-free copper prepares copper cash is harsh to environmental requirement, the copper yarn batches of production with batch between performance difference big, the strong property between the copper post that causes being processed by copper cash is criticized and criticized differs bigger.
Summary of the invention
Technical problem to be solved by this invention is the defective that overcomes prior art, provides a kind of plasticity pressure measurement senser to use copper cash.Copper post with this copper cash preparation not only has strong preferably property, and the strong property stable performance of different batches copper post.
Plasticity pressure measurement senser of the present invention is made up of oxygen-free copper and boron with copper cash, and boron content is 0.004%～0.010%, and surplus is an oxygen-free copper.
Preferred version of the present invention is 0.006% for boron content, and surplus is an oxygen-free copper.
Another preferred version of the present invention is 0.008% for boron content, and surplus is an oxygen-free copper.
Advantage of the present invention
(1) in oxygen-free copper, adds micro-pure boron powder; Boron is present in the effect that has solution strengthening in the oxygen-free copper with the form of solid solution; Suppressed the crystallization behavior again in the copper cash course of processing; Reduce the yield tensile ratio of copper cash, improved " n " hardenability value, thereby improved the strong property of plasticity pressure measurement senser copper post;
(2) can play the effect of strengthening and purifying crystal boundary at middle adding micronutrient boron; Improve plasticity pressure measurement senser and prepare the harsh requirement of process environment with copper cash; Therefore; The difference of strong property is little between the plasticity pressure measurement senser of this invention copper cash preparation batch, has improved the stability of plasticity pressure measurement senser copper column performance.
Embodiment
In oxygen-free copper electrolytic zinc-coated steel sheet fusion process, directly add pure boron powder; The mass ratio that adds pure boron powder is 0.004%-0.010%; Water seal is hot extruded into copper rod; Through high-temperature homogenization processing, cold-drawn, strip off the skin, annealing, stretch process to required copper wire diameter, make plasticity pressure measurement senser of the present invention and use copper cash, then through being machined into required plasticity pressure measurement senser copper post.
Embodiment 1
Present embodiment is 0.006% according to boron content, and surplus is that oxygen-free copper is implemented.Copper content>=99.99% of oxygen-free copper wherein, oxygen content≤0.001%.
Preparation of the present invention:
(1) founding: in electric induction furnace, 500kg oxygen-free copper electrolytic zinc-coated steel sheet is carried out melting, temperature progressively rises to 1100 ℃ in the stove.
(2) mix: the molten bath that after the fusing of oxygen-free copper electrolytic zinc-coated steel sheet, has the thin-walled oxygen-free copper pipe of the pure boron powder of 30g directly to insert electric induction furnace envelope, calm 15 minutes-25 minutes, treat that pure boron powder is dispersed in the copper liquid after, the copper ingot of drawing Φ 250mm.
(3) extruding: 900 ℃ of copper ingot to the temperature of power frequency heating Φ 250mm are hot extruded into Φ 34mm copper rod through the extruder water seal then
(4) high-temperature homogenization is handled: Φ 34mm copper rod is carried out 850 ℃, and the homogenizing of 2h is handled.
(5) stretch process: repeatedly cold-drawn is stretched to Φ 19.7mm copper cash and strips off the skin, again through repeatedly being cold drawing to Φ 10.2mm copper cash.
(6) annealing in process: Φ 10.2mm copper cash is carried out 400 ℃, the 2h annealing in process, this is stretched to Φ 8mm copper cash again, obtains copper cash of the present invention.
Embodiment 2
Present embodiment is 0.008% according to boron content, and surplus is that oxygen-free copper is implemented.Copper content>=99.99% of oxygen-free copper wherein, oxygen content≤0.001%.
Preparation of the present invention:
(1) founding: in electric induction furnace, 500kg oxygen-free copper electrolytic zinc-coated steel sheet is carried out melting, temperature is progressively to 1100 ℃ in the stove.
(2) mix: after the fusing of oxygen-free copper electrolytic zinc-coated steel sheet, have the thin-walled oxygen-free copper pipe of the pure boron powder of 40g directly to insert the molten bath envelope, calm 15-25 minute, treat that pure boron powder is dispersed in the copper liquid after, the copper ingot of drawing Φ 250mm.
(3) extruding: 900 ℃ of copper ingot to the temperature of power frequency heating Φ 250mm are hot extruded into Φ 34mm copper rod through the extruder water seal then
(4) high-temperature homogenization is handled: Φ 34mm copper rod is carried out 850 ℃, and the homogenizing of 2h is handled.
(5) stretch process: repeatedly cold-drawn is stretched to Φ 19.7mm copper cash and strips off the skin, again through repeatedly being cold drawing to Φ 7.2mm copper cash.
(6) annealing in process: Φ 7.2mm copper cash is carried out 400 ℃, the 2h annealing in process, this is stretched to Φ 6mm copper cash again, obtains copper cash of the present invention.
Application of the present invention
The preparation of Φ 8mm * 13mm copper post:
(1) machining: Φ 8mm copper cash of the present invention is carried out machine cuts, process and be of a size of Φ 8mm * 13mm copper post.
(2) annealing in process: Φ 8mm * 13mm copper post that step (1) is obtained carries out 400 ℃, the annealing in process of 2h.
(3) pickling: Φ 8mm * 13mm copper post that step (2) annealing in process is obtained is with 3% dilute sulfuric acid dipping 5min; Water cleans, drying, inspection copper post surface; There is the copper post of crackle, burr to reject on the surface, the flawless copper post of any surface finish is carried out compression test.
Copper cash of the present invention is prepared into Φ 8 * 13mm copper post and has carried out static compression test, detects by the weapons industry standard WJ71-2006 of the People's Republic of China (PRC), WJ72-2006 and WJ73-2006.High value is positioned at the median of WJ71-2006 index after load value is the copper post pressure of the present invention under the 20KN; And carry out the parallel static compression test of multiple batches of copper post; High value all is positioned at the median of WJ71-2006 index after load value is the copper post pressure of the present invention under the 20KN; And between the strong property of copper post batch repeatability better, the concrete outcome data are seen table 1.
Table 1 Φ 8 * 13mm copper post compression test result
Annotate: the high scope in qualified pressure back of the strong property of Φ 8 * 13mm copper post is 9.60mm～9.90mm among the copper cylinder standard WJ72-2006.
Claims (3)
1. a plasticity pressure measurement senser is used copper cash, its quality percentage composition: boron content is 0.004%～0.010%, and surplus is an oxygen-free copper.
2. plasticity pressure measurement senser of the present invention according to claim 1 is used copper cash, its quality percentage composition: boron content is 0.006%, and surplus is an oxygen-free copper.
3. plasticity pressure measurement senser of the present invention according to claim 1 is used copper cash, its quality percentage composition: boron content is 0.008%, and surplus is an oxygen-free copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102662578A CN102436863A (en) | 2011-09-09 | 2011-09-09 | Copper wire used for plastic manometry sensitive element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102662578A CN102436863A (en) | 2011-09-09 | 2011-09-09 | Copper wire used for plastic manometry sensitive element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102436863A true CN102436863A (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102662578A Pending CN102436863A (en) | 2011-09-09 | 2011-09-09 | Copper wire used for plastic manometry sensitive element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102436863A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2003889A (en) * | 1933-10-20 | 1935-06-04 | American Brass Co | Method of making deoxidized copper and copper alloys |
| US2479311A (en) * | 1945-07-11 | 1949-08-16 | Int Smelting & Refining Co | Production of oxygen-free copper |
| GB2161832A (en) * | 1984-07-21 | 1986-01-22 | Kabel Metallwerke Ghh | Hollow electrical conductor |
-
2011
- 2011-09-09 CN CN2011102662578A patent/CN102436863A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2003889A (en) * | 1933-10-20 | 1935-06-04 | American Brass Co | Method of making deoxidized copper and copper alloys |
| US2479311A (en) * | 1945-07-11 | 1949-08-16 | Int Smelting & Refining Co | Production of oxygen-free copper |
| GB2161832A (en) * | 1984-07-21 | 1986-01-22 | Kabel Metallwerke Ghh | Hollow electrical conductor |
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120502 |