CN1236969A - Technology for manufacturing white dumet wire - Google Patents
Technology for manufacturing white dumet wire Download PDFInfo
- Publication number
- CN1236969A CN1236969A CN 99115420 CN99115420A CN1236969A CN 1236969 A CN1236969 A CN 1236969A CN 99115420 CN99115420 CN 99115420 CN 99115420 A CN99115420 A CN 99115420A CN 1236969 A CN1236969 A CN 1236969A
- Authority
- CN
- China
- Prior art keywords
- annealing
- hour
- nickel
- grams per
- per liter
- 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.)
- Granted
Links
Landscapes
- Electroplating Methods And Accessories (AREA)
Abstract
A technology for manufacturing white dumet wire includes such technological steps as selecting Fe-Ni alloy rod with constant linear expansion coefficient as core material, washing its surface with ethylene trichloride, annealing, anode erosion in H2SO4 solution, electroplating copper, annealing, cold drawing, plating N1, annealing drawing and continuous annealing. Its advanteges are easily controlled thickness of Ni layer and high oxidation resistance. Said white dumet wire can be used in electric vacuum device or as electric leading wire for higher air tightness of vacuum and longer service life.
Description
The present invention relates to a kind of production method of electrovacuum seal, sealing materials white Dumet wire.
Dumet wire is mainly used in electron tube, semiconductor device and bulb equipment, and the lead-in wire that dispatch from foreign news agency is led in the video picture device etc.The production method of existing Dumet wire generally is to adopt the iron-nickel alloy rod with certain coefficient of expansion, becomes bimetallic through multiple copper, after drawing, is coated with the borate goods on its surface again, and it is orange red to wine-colored finished product obtaining surface color.Because of this product surface is cuprous oxide and borate mixture, the easy moisture absorption, easy blackout be cannot say for sure pipe, simultaneously, thickness of oxide layer is wayward in production technology, too thick, the too thin sealing property that all influences itself and glass.
Task of the present invention provides a kind of method of producing white Dumet wire, is core with multiple copper iron-nickel alloy wire, three metallic composites that multiple nickel, drawing form.Nickel dam substitutes cuprous oxide and borate mixture, and surface color is silvery white.Because nickel layer thickness is easy to control, and nickel has good oxidization resistance, with white Dumet wire make electron tube, electric guide wire can improve its vacuum-tightness, prolongs its useful life.
It is as follows to finish concrete grammar of the present invention:
One, the production of multiple copper iron-nickel alloy wire core
1. the iron-nickel alloy rod of choosing the alignment coefficient of expansion is core, and the alloy of the 4J43 trade mark is comparatively desirable.Its chemical composition following (%) meets the GBn104-81 standard:
C | P | S | Mn | Si | ?Ni | Fe |
≤0.05 | ≤0.02 | ≤0.02 | ≤0.4 | ≤0.3 | ?42.5~43.5 | Surplus |
2. before electroplating the iron-nickel alloy rod is carried out surface clean with trichloroethylene, in hydrogen-burning stove, anneal, 1100~1150 ℃ of annealing temperatures, temperature retention time 2~3 hours is then at 160-200 grams per liter H
2SO
4Carry out anodic souring in the solution, copper facing again, the parameter of electroplating copper-plating technique is as follows:
The copper electroplating solution prescription is that concentration is the CuSO of 210~260 grams per liters
45H
2O, concentration is the H of 50~75 grams per liters
2SO
4Reagent is pure, and temperature is between 20~32 ℃, and voltage is 2~4 volts in the groove, and working current density is 10~11 amperes/decimeter
2, the copper facing time is 4 hours 15 minutes-6 hours 15 minutes.
3. the drawing of dumet
Iron-nickel alloy rod after the copper facing is carried out annealing in process in hydrogen-burning stove, annealing temperature is that 800~850 ℃, temperature retention time were assigned to 2 hours in 1 hour 20, and then carries out cold drawn silk processing.Draw the dumet rod on chain drawbench, being drawn into diameter is the dumet silk of φ≤4mm, and lubricant is with artificial hard oil fat.And then on vertical cylinder wire drawing machine, draw the dumet silk, be drawn into the dumet silk of diameter phi≤2mm, lubricant ammonia soap solution.
Two, electroplate multiple nickel
1. nickel plating pre-treatment
Before electroplating multiple nickel, the dumet silk is carried out annealing in process at hydrogen-burning stove, 800~850 ℃ of annealing temperatures earlier.Temperature retention time is to assign to 2 hours in 1 hour 20, with the soda boiling pineization of deoiling, uses hot water wash, with 1~10 second of chloroazotic acid etch, chargedly immediately after the washing puts into nickel bath nickel plating.
2. nickel plating technology
The nickel plating solution prescription
NiSO
47H
2O 135 grams per liter Na
2SO410H
2O 70-80 grams per liter
H
3BO
320-30 grams per liter NaCl 5-7 grams per liter
Temperature adopts room temperature, and pH value is that 5~5.5 current densities are 0.2~2 ampere/decimeter
2, time 2-3 hour.
Nickel plating mode: adopt dumet silk one circle circle is evenly hung over the rack plating method or the continuous electroplating method of electroplating electronickelling on the hook rack.
Three, the drawing of white Dumet wire:
1. three metal composite wires after the nickel plating are carried out annealing in process at hydrogen-burning stove earlier, 800~880 ℃ of annealing temperatures, temperature retention time 1 hour to 1 hour 40 minutes is carried out cold drawn silk processing then.
2. three metal composite wires are drawn, intermediate annealing, 800~880 ℃ of annealing temperatures, temperature retention time 1 hour to 1 hour 40 minutes is drawn into the finished product of all size then.
3. the finished products of white Dumet wire adopts the continuous annealing furnace of hydrogen shield to carry out continuous annealing, 800~880 ℃ of annealing temperatures, 18~25 meters/minute of speed.
The iron-nickel alloy rod that embodiment chooses φ 8.0 * 1600mm is core, alloy designations 4J43
1. earlier 4J43 iron-nickel alloy rod is carried out surface clean with trichloroethylene, in hydrogen-burning stove, anneal, 1100 ℃ of annealing temperatures, temperature retention time 2 hours is then at 180 grams per liter H
2SO
4Carry out anodic souring in the solution.Electroplating the copper plating solution prescription is CuSO
45H
2O 220 grams per liters, H
2SO
4(reagent is pure), 59 grams per liters, 30 ℃ of temperature, voltage is 4 volts in the groove, 10 amperes/decimeter of working current density
2, 5-6 hour copper facing time.
2. the drawing of dumet
Iron-nickel alloy rod after the copper facing is carried out annealing in process in hydrogen-burning stove, annealing temperature is 800~850 ℃, temperature retention time was assigned to 2 hours in 1 hour 20, and then carry out cold drawn silk and process, on chain drawbench, draw the dumet rod, be drawn into the iron-nickel alloy wire that diameter phi is 3.8mm, lubricant: artificial hard oil fat.
On vertical cylinder wire drawing machine, draw the dumet silk, be drawn into the copper-beryllium silk of diameter phi 1.5mm.
3, electroplate multiple nickel
Before electroplating multiple nickel, the dumet silk is carried out annealing in process at hydrogen-burning stove, 800~850 ℃ of annealing temperatures earlier, temperature retention time is to assign to 2 hours in 1 hour 20, with the soda boiling pineization of deoiling, uses hot water wash, with 1~10 second of chloroazotic acid etch, chargedly immediately after the washing put into nickel bath nickel plating.The nickel plating technology parameter is as follows: the nickel plating solution prescription
NiSO
47H
2O 135 grams per liter Na
2SO
410H
2O 70-80 grams per liter
H
3BO
320-30 grams per liter NaCl 5-7 grams per liter
Temperature adopts room temperature, and pH value is 5~5.5, and current density is 0.2~2 ampere/decimeter
2, time 2-3 hour.
Nickel plating mode: adopt rack plating method or continuous electroplating method.
4, the drawing of white Dumet wire:
1. three metal composite wires after the nickel plating are carried out annealing in process at hydrogen-burning stove earlier, 800~880 ℃ of annealing temperatures, temperature retention time 1 hour to 1 hour 40 minutes is carried out cold drawn silk processing then.
2. three metal composite wires are drawn, intermediate annealing, 800~880 ℃ of annealing temperatures, temperature retention time 1 hour to 1 hour 40 minutes is drawn into the finished product of all size then.
3. the finished products of white Dumet wire adopts the continuous annealing furnace of hydrogen shield to carry out continuous annealing, 800~880 ℃ of annealing temperatures, 18~25 meters/minute of speed.
Claims (2)
1. method of producing Dumet wire is characterized in that may further comprise the steps:
(1) produces multiple copper iron-nickel alloy wire core
1. the iron-nickel alloy rod of choosing the alignment coefficient of expansion is core, and chemical composition is (%): C≤0.05, P≤0.02, and S≤0.02, Mn≤0.4, Si≤0.3, Ni:42.5~4 3.5, surplus is Fe, meets the GBn104-81 standard;
2. the iron-nickel alloy rod is carried out surface clean with trichloroethylene, annealing then is again at 160-200 grams per liter H
2SO
4Carry out anodic souring in the solution, electroplate copper facing then;
3. the iron-nickel alloy rod after the copper facing is carried out annealing in process, annealing temperature is 800~850 ℃, and temperature retention time was assigned to 2 hours in 1 hour 20, and then carries out cold drawn silk processing;
(2) electroplate multiple nickel
1. earlier with the annealing of dumet silk, annealing temperature is 800~850 ℃, is incubated 1 hour 20 and assigns to 2 hours, with the soda boiling pineization of deoiling, uses hot water wash, uses the chloroazotic acid etch, chargedly immediately after the washing puts into nickel bath nickel plating, and the nickel plating technology parameter is as follows:
The nickel plating solution prescription
NiSO
47H
2O 135 grams per liter Na
2SO
410H
2O 70-80 grams per liter
H
3BO
320-30 grams per liter NaCl 5-7 grams per liter
Temperature adopts that room temperature, pH value are 5~5.5, current density is 0.2~2 ampere/decimeter
2, time 2-3 hour;
2. use rack plating method or the nickel plating of continuous electroplating method;
(3) drawing of white Dumet wire:
1. with the annealing earlier of three metal composite wires after the nickel plating, 800~880 ℃ of annealing temperatures, temperature retention time 1 hour to 1 hour 40 minutes;
2. three metal composite wires are drawn, intermediate annealing, 800~880 ℃ of annealing temperatures, temperature retention time 1 hour to 1 hour 40 minutes is drawn into the finished product of all size then;
3. finished products adopts the continuous annealing furnace of hydrogen shield to carry out continuous annealing, 800~880 ℃ of annealing temperatures, 18~25 meters/minute of speed.
2. the method for a production Dumet wire according to claim 1 is characterized in that: the time with the chloroazotic acid etch before the nickel plating was 1~10 second.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 99115420 CN1109133C (en) | 1999-06-10 | 1999-06-10 | Technology for manufacturing white dumet wire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 99115420 CN1109133C (en) | 1999-06-10 | 1999-06-10 | Technology for manufacturing white dumet wire |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1236969A true CN1236969A (en) | 1999-12-01 |
CN1109133C CN1109133C (en) | 2003-05-21 |
Family
ID=5278380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 99115420 Expired - Fee Related CN1109133C (en) | 1999-06-10 | 1999-06-10 | Technology for manufacturing white dumet wire |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1109133C (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100445022C (en) * | 2005-07-12 | 2008-12-24 | 成都佳路电子材料有限公司 | Ternary structure compounding process of producing dumat wire |
CN103474400A (en) * | 2013-09-14 | 2013-12-25 | 许晗 | Boron-free oxidation dumet wire and manufacturing processes thereof |
CN105386105A (en) * | 2015-11-25 | 2016-03-09 | 西安菲尔特金属过滤材料有限公司 | Manufacturing method of nickel base alloy fibers |
CN108270135A (en) * | 2018-01-20 | 2018-07-10 | 云南大学 | A kind of silver alloy cladding copper alloy composite filament brush material and preparation method thereof |
CN108987244A (en) * | 2017-06-02 | 2018-12-11 | 东芝照明技术株式会社 | Lead, the manufacturing method of lead and motor-vehicle bulb |
CN108994107A (en) * | 2018-07-09 | 2018-12-14 | 江阴六环合金线有限公司 | A kind of oxidation Dumet wire and its processing technology using set process for copper |
CN110453258A (en) * | 2019-06-13 | 2019-11-15 | 佛山市顺德区勒流伟田塑料制品厂 | A kind of plating lamp cap production method |
CN113652532A (en) * | 2021-08-16 | 2021-11-16 | 江苏昆仑光源材料有限公司 | Production method of solute heat treatment Dumet wire |
-
1999
- 1999-06-10 CN CN 99115420 patent/CN1109133C/en not_active Expired - Fee Related
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100445022C (en) * | 2005-07-12 | 2008-12-24 | 成都佳路电子材料有限公司 | Ternary structure compounding process of producing dumat wire |
CN103474400A (en) * | 2013-09-14 | 2013-12-25 | 许晗 | Boron-free oxidation dumet wire and manufacturing processes thereof |
CN105386105A (en) * | 2015-11-25 | 2016-03-09 | 西安菲尔特金属过滤材料有限公司 | Manufacturing method of nickel base alloy fibers |
CN108987244A (en) * | 2017-06-02 | 2018-12-11 | 东芝照明技术株式会社 | Lead, the manufacturing method of lead and motor-vehicle bulb |
CN108987244B (en) * | 2017-06-02 | 2022-03-29 | 东芝照明技术株式会社 | Lead wire, method for manufacturing lead wire, and bulb for vehicle |
CN108270135A (en) * | 2018-01-20 | 2018-07-10 | 云南大学 | A kind of silver alloy cladding copper alloy composite filament brush material and preparation method thereof |
CN108994107A (en) * | 2018-07-09 | 2018-12-14 | 江阴六环合金线有限公司 | A kind of oxidation Dumet wire and its processing technology using set process for copper |
CN110453258A (en) * | 2019-06-13 | 2019-11-15 | 佛山市顺德区勒流伟田塑料制品厂 | A kind of plating lamp cap production method |
CN110453258B (en) * | 2019-06-13 | 2021-10-26 | 佛山市顺德区巴田塑料实业有限公司 | Method for producing electroplated lamp cap |
CN113652532A (en) * | 2021-08-16 | 2021-11-16 | 江苏昆仑光源材料有限公司 | Production method of solute heat treatment Dumet wire |
Also Published As
Publication number | Publication date |
---|---|
CN1109133C (en) | 2003-05-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7105740B2 (en) | Stranded copper-plated aluminum cable, and method for its fabrication | |
US2891309A (en) | Electroplating on aluminum wire | |
CN1455829A (en) | Metal-plated material and method for preparation, and electric and electronic parts using same | |
KR102326967B1 (en) | Method of making textured coated electrode wire | |
CN103484905B (en) | A kind of method of electroplating rhodium layer | |
CN1109133C (en) | Technology for manufacturing white dumet wire | |
CN112593266A (en) | Sn-plated material and method for producing same | |
US2676916A (en) | Electroplating on aluminum | |
US1745912A (en) | Chromium-coated wire and method of manufacture | |
US1931704A (en) | Process of protecting ferrous metals | |
CN114507887A (en) | Composite coating and preparation method thereof | |
KR100227581B1 (en) | Method for forming a tough, electrical insulating layer on surface of copper material | |
CN112143932A (en) | Copper-based palladium coating bonding lead and manufacturing method thereof | |
JPH06235086A (en) | Lead steel wire for electronic parts and its production | |
JPS6240361A (en) | Production of corrosion resistant copper-base member | |
US3708405A (en) | Process for continuously producing nickel or nickel-gold coated wires | |
US2195231A (en) | Art of coating metals | |
CN107170527A (en) | A kind of compressor electric motor copper-clad aluminum conductor processing technology | |
JP2645837B2 (en) | Surface treatment method of wire rope | |
KR100925000B1 (en) | Electrode wire for electric discharge machining and manufacturing method thereof | |
JPS61166994A (en) | Copper or copper alloy wire or rod having bright tin plating or bright tin alloy plating layer | |
JPH05258623A (en) | Forming method for copper stabilized layer of superconductive wire by electroplating | |
CN116631708B (en) | Antioxidant corrosion-resistant copper braided wire and manufacturing method thereof | |
CN114214674B (en) | Chromium plating process of copper continuous casting crystallizer | |
KR100481950B1 (en) | An electrode wire production method for a graphite coating discharge processing |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |