CN107502844A - A kind of method for reducing beryllium copper silk nonphysical wear - Google Patents
A kind of method for reducing beryllium copper silk nonphysical wear Download PDFInfo
- Publication number
- CN107502844A CN107502844A CN201710752367.2A CN201710752367A CN107502844A CN 107502844 A CN107502844 A CN 107502844A CN 201710752367 A CN201710752367 A CN 201710752367A CN 107502844 A CN107502844 A CN 107502844A
- Authority
- CN
- China
- Prior art keywords
- beryllium copper
- copper silk
- graphite
- reducing
- nonphysical wear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/008—Using a protective surface layer
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
It is a kind of reduce beryllium copper silk nonphysical wear the process of method be：Graphite and material are weighed → calculated, and → shove charge → is incubated, and → entering water → weighs；Beneficial effects of the present invention are as follows：According to batch:Oxygenation amount:Add graphite=100:1.7:After 0.64 heat treatment, being heat-treated to the warm time substantially shortens, and improves the efficiency of heating surface of heating furnace and reduces the heat treatment loss of beryllium copper silk, quenching loss is reduced to 1.83% by 4.37%, and pickling loss can reduce by 0.90%.
Description
Technical field
The invention belongs to metal material Field of Heat-treatment, more particularly to a kind of method for reducing beryllium copper silk nonphysical wear.
Background technology
Beryllium copper silk be a kind of high intensity, high rigidity solution strengthening alloy product, have after fixation rates higher
Conduction, thermal conductivity, thus spring touch finger pressure-air switch industry is widely used in, in order to overcome existing spring touch finger with touching
The loose contact of head and conductor and caused by contact resistance is big, flow conductivity is poor, the deficiency of temperature rise, while in order to meet it
There is better contact resistance, silk material surface there must be preferable finish.At present because heat-treatment oxidation scaling loss is more serious,
Surface smoothness is poor after pickling, and finished surface finish is poor, seriously governs the raising of lumber recovery and quality, in addition beryllium copper
Slight oxidation will occur under silk normal temperature, oxidation at high temperatures speed increases sharply, and adds nonphysical wear.We are at present
The modes such as passage, reduction batch are quenched to reduce heat treatment loss, but effect by improving the purity of raw material, reducing beryllium copper silk
And unobvious, the proportion of goods damageds of single pass cannot be guaranteed surface quality requirements still more than 3%, so how to reduce beryllium copper
Burn out rate during silk heat treatment, turn into and produce product key.
So the patent is by toward the method that addition graphite powder quenches in ceramic crucible, on the one hand reducing beryllium copper silk and oxygen
The chance of reaction, on the other hand play a part of oxide reduction, so as to reduce quenching beryllium copper silk oxidation nonphysical wear, reach and carry
The purpose of matter synergy.
The content of the invention
The purpose of the present invention is to provide a kind of reduce for the larger weak point of existing beryllium copper silk heat treatment nonphysical wear
The technical scheme of beryllium copper silk nonphysical wear.
For achieving the above object, the process of this method is：Graphite and material metage → calculating → shove charge → insulation →
Enter water → weigh, the concrete technology step of this method is：
（1）Weigh：Using electronic scale weighing graphite and beryllium copper silk, and hundredths can be accurate to.
（2）Calculate：According to the shove charge Liang ︰ oxygenation Liang ︰ additions quantity of graphite=ratios of 100 ︰, 1.7 ︰ 0.64 addition.
（3）Shove charge：Graphite powder is put into crucible and is sent into body of heater, writes down the initial data of the temperature of body of heater temperature control table, is wrapped
Include body of heater preset temperature, heating-up time, soaking time and soaking time.
（4）Insulation：The temperature change of three temperature control instruments is observed, counts the standard deviation of temperature change, normal temperature is
900℃。
（5）Enter water：The speed control come out of the stove is within 30s, using the temperature of thermometer measure water cooling medium, it is to be ensured that
The temperature of water is at 60 DEG C.
Beneficial effects of the present invention are as follows：According to batch:Oxygenation amount:Add graphite=100:1.7:After 0.64 heat treatment,
Being heat-treated to the warm time substantially shortens, and improves the efficiency of heating surface of heating furnace and reduces the heat treatment loss of beryllium copper silk, quenching damage
Consumption is reduced to 1.83% by 4.37%, and pickling loss can reduce by 0.90%.
Embodiment
The embodiment of the present invention is described further by embodiment:
1st, weigh：Graphite and beryllium copper silk fashionable dress stove weight are respectively 7.4kg（No. 1）、20.00kg（No. 2）、20.00kg（No. 3）Adopt
Electronic scale is weighed.
2nd, calculate：20.00kg (No. 2) proportionally adds the ︰ 0.64 of quantity of graphite=100 ︰ 1.7 for shove charge Liang ︰ oxygenation Liang ︰ and added
Entering the amount of graphite, remaining is not added with graphite for 0.1486kg..
3rd, 900 DEG C of preset temperature, heating-up time are that 6min, 20min, 9min soaking time are 20min, and the proportion of goods damageds are divided
Wei 2.7%, 5%, 1.72%.
4th, it is incubated：The normal temperature of three warm areas is 892 DEG C, 901 DEG C, 899 DEG C, and temperature fluctuation is within 10 DEG C.
5th, water is entered：Circulating water, speed of coming out of the stove are 20s, and the temperature of water is 40 DEG C.
6th, weigh：Using electronic scale weighing weight it is respectively 7.2kg, 19kg, 19.65kg after drying
As a result：No. 3 losses are 1.72%.Pickling loss is 0.89%.
Case 2：
1st, weigh：Graphite and beryllium copper silk fashionable dress stove weight are respectively 16.60kg（No. 1）、6.40kg（No. 2）、16.60kg（No. 3）
Using electronic scale weighing.
2nd, calculate：16.60kg (No. 1) proportionally adds the ︰ 0.64 of quantity of graphite=100 ︰ 1.7 for shove charge Liang ︰ oxygenation Liang ︰ and added
Entering the amount of graphite, remaining is not added with graphite for 0.1062kg..
3rd, 900 DEG C of preset temperature, heating-up time are that 6min, 20min, 9min soaking time are 20min, and the proportion of goods damageds are divided
Wei 1.96%, 3.6%, 3.126%.
4th, it is incubated：The normal temperature of three warm areas is 895 DEG C, 905 DEG C, 899 DEG C, and temperature fluctuation is within 10 DEG C.
5th, water is entered：Circulating water, speed of coming out of the stove are 25s, and the temperature of water is 35 DEG C.
6th, weigh：16.00kg、6.16kg、16.27kg.
As a result：The proportion of goods damageds of No. 1 are 1.96%, pickling loss：0.9%.
General principle, the main features and advantages of the present invention are above examples described, the technical staff of the industry should
Solution, present aspect are not restricted to the described embodiments.In the case where not departing from principle of the invention scope, various changes and modifications are also had,
These changes and improvements are each fallen within the scope of protection of the invention.
Claims (4)
- A kind of 1. method for reducing beryllium copper silk nonphysical wear, it is characterised in that the process of this method is：Graphite and material weigh → Calculating → shove charge → is incubated → entering water → and weighed.
- A kind of 2. method for reducing beryllium copper silk nonphysical wear according to claim 1, it is characterised in that described stone of weighing Electronic scale weighing is used when ink and beryllium copper silk, is gone out using counter balance weighing measurement and is heat-treated forward and backward oxygenation amount, and then passed through Theoretical calculation goes out to need the content of graphitic carbon, and ratio is that shove charge Liang ︰ oxygenation Liang ︰ add the ︰ 0.64 of quantity of graphite=100 ︰ 1.7.
- 3. a kind of method for reducing beryllium copper silk nonphysical wear according to claim 1, it is characterised in that described enters hydromining With the temperature of thermometer measure water cooling medium, it is to be ensured that temperature at 60 DEG C, while to ensure to weigh up the beryllium copper silk after cooling with Water and the gross weight for dropping to water oxygen skin.
- 4. a kind of method for reducing beryllium copper silk nonphysical wear according to claim 1, it is characterised in that using EBSD skill Art method tests out the oxygen content of material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710752367.2A CN107502844A (en) | 2017-08-28 | 2017-08-28 | A kind of method for reducing beryllium copper silk nonphysical wear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710752367.2A CN107502844A (en) | 2017-08-28 | 2017-08-28 | A kind of method for reducing beryllium copper silk nonphysical wear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107502844A true CN107502844A (en) | 2017-12-22 |
Family
ID=60692842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710752367.2A Pending CN107502844A (en) | 2017-08-28 | 2017-08-28 | A kind of method for reducing beryllium copper silk nonphysical wear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107502844A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741083A (en) * | 2014-01-09 | 2014-04-23 | 宁夏新和新材科技有限公司 | Cast pipe blank rolling method for preparing high-performance, large-size and high-precision beryllium copper pipe |
| CN103966475A (en) * | 2014-05-15 | 2014-08-06 | 江西理工大学 | Copper-chromium-titanium alloy contact wire and preparation method thereof |
-
2017
- 2017-08-28 CN CN201710752367.2A patent/CN107502844A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741083A (en) * | 2014-01-09 | 2014-04-23 | 宁夏新和新材科技有限公司 | Cast pipe blank rolling method for preparing high-performance, large-size and high-precision beryllium copper pipe |
| CN103966475A (en) * | 2014-05-15 | 2014-08-06 | 江西理工大学 | Copper-chromium-titanium alloy contact wire and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 赵建康: "《铸造合金及其熔炼》", 30 June 1985, 机械工业出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171222 |
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| RJ01 | Rejection of invention patent application after publication |