CN105316575A - Cold-heading wire for resonance rod and production method thereof - Google Patents
Cold-heading wire for resonance rod and production method thereof Download PDFInfo
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- CN105316575A CN105316575A CN201410255425.7A CN201410255425A CN105316575A CN 105316575 A CN105316575 A CN 105316575A CN 201410255425 A CN201410255425 A CN 201410255425A CN 105316575 A CN105316575 A CN 105316575A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 31
- 238000000137 annealing Methods 0.000 claims abstract description 28
- 238000005554 pickling Methods 0.000 claims abstract description 27
- 238000005242 forging Methods 0.000 claims abstract description 17
- 238000002844 melting Methods 0.000 claims abstract description 17
- 239000002893 slag Substances 0.000 claims abstract description 14
- 239000000126 substance Substances 0.000 claims abstract description 8
- 238000003723 Smelting Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 230000008018 melting Effects 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- 238000007670 refining Methods 0.000 claims description 13
- 238000007669 thermal treatment Methods 0.000 claims description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000007654 immersion Methods 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 239000005864 Sulphur Substances 0.000 claims description 5
- 229910001651 emery Inorganic materials 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 239000011572 manganese Substances 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- 239000011574 phosphorus Substances 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000010436 fluorite Substances 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 239000003643 water by type Substances 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 2
- 241001417490 Sillaginidae Species 0.000 claims 1
- 230000007547 defect Effects 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 9
- 239000007789 gas Substances 0.000 abstract description 3
- 238000005491 wire drawing Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 229910052755 nonmetal Inorganic materials 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000009966 trimming Methods 0.000 abstract 1
- 235000021110 pickles Nutrition 0.000 description 8
- 229910000851 Alloy steel Inorganic materials 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 7
- 208000037656 Respiratory Sounds Diseases 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 238000005336 cracking Methods 0.000 description 6
- 239000000956 alloy Substances 0.000 description 5
- 238000003754 machining Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000006748 scratching Methods 0.000 description 4
- 230000002393 scratching effect Effects 0.000 description 4
- 241001062472 Stokellia anisodon Species 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 210000003953 foreskin Anatomy 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000013138 pruning Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910004261 CaF 2 Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001374 Invar Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
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- 230000000630 rising effect Effects 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/047—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire of fine wires
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/18—Electroslag remelting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention relates to a cold-heading wire for a resonance rod and a production method thereof. The cold-heading wire includes the following chemical components: 35-37% of Ni, 0.2-0.6% of Mn, not more than 0.3% of Si, not more than 0.2% of P, not more than 0.05% of C, not more than 0.02% of S and the balanced being Fe. The production method includes the following steps: 1) vacuum smelting; 2) electro-slag re-melting; 3) forging and cogging-down; 4) hot-roll moulding; 5) thick wire drawing; 6) acidic-white blank treatment; 7) grinding and edge trimming; 8) annealing treatment; 9) acid-pickling inspection; 10) fine drawing and 11) heat treatment. The cold-heading wire can satisfy demands on hardness and expansion coefficient of the resonance rod on the basis of proportion and production cost and meanwhile has excellent toughness, thereby satisfying processing requirement of cold heading. The production method not only improves processing efficiency but also increases material utilization rate, so that product processing loss and preparation cost are reduced. The production method includes the vacuum smelting process so that contents of H2, O2 and such gases are greatly reduced in the cold-heading wire, so that formation of non-metal impurities are controlled well and further the cold-heading wire is improved in purity, plasticity and toughness and is improved in process yield.
Description
Technical field
The present invention relates to resonant rod invar cold-heading silk and the production method thereof of radio-frequency (RF) device, meet the requirement of required hardness that resonant rod is suitable for and the coefficient of expansion, and material and the production method thereof of cold-heading processing can be met, especially about the improvement of the Ni-based 4J36 of expansion alloy material.
Background technology
Along with mobile communication business develop rapidly, radio-frequency (RF) device becomes product indispensable in the construction of communication base station, and applies to resonant rod product in a large number in radio-frequency (RF) device.Resonant rod is as the core component of radio-frequency (RF) device, bar is adopted to carry out lathe turning processing because its accuracy requirement is higher for many years, but in recent years along with domestic and international communications industry further develops the acceleration of cracking the international market with home communications primary device business, the market requirement of radio-frequency devices is increasing, and manufacture resonant rod at present and all adopt numerically-controlled machine (CNC) to carry out machining to resonant rod, therefore the problem brought is that work material waste is serious, material use efficiency only has 60% ~ 70%, and process period is longer, working (machining) efficiency is only 30 ~ 40/hour.The working (machining) efficiency of resonant rod becomes restriction client improving product output, reduces the obstacle of every cost.Find in the research and practice process of prior art: traditional cold-heading working method is mainly for the manufacture of parts such as bolt, nut, iron nail, rivet and steel balls.Forging stock material can be copper, aluminium, carbon steel, steel alloy, stainless steel and titanium alloy etc., and material use efficiency can reach 80 ~ 90%, not only increases working (machining) efficiency, more saves material, reduces cost of goods manifactured.And existing resonant rod material is owing to will meet the requirement of hardness and the coefficient of expansion, therefore it can not adopt cold-heading method to carry out simultaneous manufacturing.
Summary of the invention
The technical problem to be solved in the present invention is to provide the requirement of hardness needed for a kind of resonant rod met in radio-frequency (RF) device and the coefficient of expansion, can meet cold-heading silk and the production method thereof of the requirement of cold-heading processing simultaneously.
In GB allowed band, suitably adjust original 4J36 expansion alloy material composition, incorporate new production method.Concrete operations are as follows: select 4J36 expansion alloy material, its chemical composition is (wt.% represents): nickel: 35-37%, manganese: 0.2-0.6%, silicon :≤0.3%, phosphorus :≤0.2%, carbon :≤0.05%, sulphur :≤0.02%, iron: surplus.
Its production method comprises the following steps: vacuum melting → esr → forge cogging → hot-roll forming → crin drawing → sour openpore material → polishing deburring → anneal → pickling test → cold drawn → thermal treatment, wherein:
1) vacuum melting: raw material Jinchuan Ni plate, Pure Silicon Metal, Mn, Ultra-low carbon and technical pure Fe are loaded after baking in the ZGHL0.25-250-1 type vacuum induction melting furnace of east, Jinzhou electric furnace company limited production and carry out melting, high-power high speed melt is added after melting 70%, when entering refining period after refining temperature 1460-1660 DEG C to be achieved after fine melt (preferably 1500 DEG C), refining keeps 30 minutes, and the refining later stage turns rough vacuum (10
3-10
-1pa), high-power stirring tapping in a minute, waters injecting electrode.
2) esr: be that the fluorite of 0.9:1 to 1.1:1 and titanium dioxide prepare striking agent with mass ratio, is respectively the CaF of 7:2:1 with mass ratio
2, Al
2o
3remelting electroslag system is made with CaO; Shove charge, striking slag making, smelting, feeding, cooling, make steel ingot base; When adding slag, spoon does not allow to contact with crystallizer, electrode bar or slag charge on crystallizer disorderly smash by slag spoon simultaneously, striking electric current is 500-1500A, normally smelt again after slag fine melt, control electric current 2500-3000A, voltage 38-41V, make electrode melting, until crystallizer is filled, smelting finishes carries out feeding, the de-ingot air cooling of remelted ingot cooling.
Described vacuum metling operation and esr operation, the ZGHL0.25-250-1 type vacuum induction melting furnace used improves purity and the uniform texture of steel alloy effectively, improve the surface of steel ingot, inner quality, improve the performance of steel alloy, reduce further the generation of nonmetallic inclusionsin steel.
3) cogging is forged:
(1) preheating: steel ingot base is heated to 850 DEG C by room temperature, preheating 30-50 minute;
(2) heat up: be warmed up to 1050-1150 DEG C and turn over ingot blank, insulation 40-50 minute;
(3) be incubated: when reaching forging temperature, initial forging temperature >=1100 DEG C, final forging temperature >=950 DEG C.
(4) forging: adopt the second light industry bureau one weight, two uniform methodologys make steel ingot.
Described forging forges to start to touch with less deflection, improve rear bang of taking the circumstances into consideration etc. plasticity, touch again when closing on final forging temperature, require that distortion is even, avoid repeatedly clashing at same position, forge in process and want duty to stand up, diligent charging, it is wide that each inlet amount should be less than brill, be greater than draught, avoid producing hammering and folding, failure surface, affects the quality of cold heading steel.
4) hot-roll forming: material loads the temperature of annealing furnace :≤600 DEG C; Heating-up time >=120 minutes; Heating temperature: 1100-1150 DEG C; Soaking time: >=30 minutes, begins to roll temperature: >=1100 DEG C; Finishing temperature >=950 DEG C.
Above-mentioned hot-rolled process, enters stokehold and assembles production spare part and adjust, and can avoid producing folding in the operation of rolling or scratching, destroy product surface, form the crackle of cracking.
5) crin drawing: before operation, first carries out joining mould, carries out drawing process by deformation requirements glomerocryst mould.
Described crin drawing procedure, according to dimensional requirement, need select the mould of suitable pass, and it is as follows to join mold technique standard:
Unit (mm) " * " represents annealing (annealing temperature is see " well vacuum electric furnace thermal treatment (annealing) table look-up ")
￠ 18.0*-￠ 17.0*-￠ 16.0*-￠ 15.0*-￠ 14.0*-￠ 13.0*-￠ 10.0* and ￠ 8.5*
Well vacuum electric furnace thermal treatment (annealing) table look-up
| Classification | State | Specification mm | Heating temperature DEG C | Soaking time | The type of cooling |
| Nickel-base alloy | Work in-process | ≥￠8 | 800-850 | >=40 minutes | Air cooling |
6) sour openpore material: with sulfuric acid immersion, salt acid rinse to white, pickling temperature 30-70 DEG C, pickling time 20-35 minute.Blank pickle solution proportioning:
| Pickle solution proportioning | Concentration % | Temperature DEG C | Time |
| HCL:HNO 3:H 2O=1:1: surplus | 15 | 30-50 | 10-20 |
| Pickle solution proportioning | Concentration % | Temperature DEG C | Time |
| H 2SO 4:HNO 3:NaCl:H 2O=4:1:1: surplus | 30 | 50-70 | 10-15 |
Described pickling process, concentration is with the Weight computation of complex acid, and the blank after pickling must embathe and high pressure water flushing wash clean, conveniently finds out surface crack.
7) polishing deburring: check material surface situation, if any surface imperfection (as burr, foreskin, crackle), carry out reconditioning process with portable emery wheel.
8) anneal: be placed on by crin in pit type annealing furnace and carry out anneal, temperature, at 800 DEG C-850 DEG C, is incubated 1-2 hour.
9) pickling test: with sulfuric acid immersion, salt acid rinse to white, pickling temperature 50-80 DEG C, pickling time 8-15 minute.Check material surface situation, carry out light pruning with portable emery wheel, require that the surface imperfection degree of depth is no more than 0.5mm.
10) finish draw: (1) joins mould: according to dimensional requirement, the mould of suitable pass need be selected, it is as follows to join mold technique standard:
Unit (mm) " * " represents annealing (annealing temperature is see " well vacuum electric furnace process (annealing) table look-up "),
￠ 18.0*-￠ 17.0*-￠ 16.0*-￠ 15.0*-￠ 14.0*-￠ 13.0*-￠ 10.0* and ￠ 8.5.
(2) finish draw: often draw next specification all to need to carry out pickling test, reconditioning process.
11) thermal treatment: be placed in well formula argon shield bright annealing oven by the silk material after cold drawn and heat-treat, thermal treatment temp is at 800 DEG C-850 DEG C, and insulation is air cooling after 1-2 hour, discharging.
Above-mentioned annealing thermal treatment and thermal treatment, can improve or eliminate steel casting, forge, the various tissues disappearance that causes in the process such as rolling and unrelieved stress, and crystal grain thinning, prevent stress concentration, thus reduce the cracking probability of cold heading steel, larger deflection can be born, there is larger unit elongation, relative reduction in area, preferably plasticity and higher toughness and intensity.
The present invention is from affecting the chemical composition of steel of cold heading steel quality, surface imperfection, equipment adjustment, grain fineness number and the large factor of rolling method 4, ZGHL0.25-250-1 type vacuum induction melting furnace is used effectively to improve purity and the uniform texture of steel alloy, improve the surface of steel ingot, inner quality, improve the performance of steel alloy, reduce the content of nonmetallic inclusionsin steel and the gas content of H, O; Deoxidation, crystal grain thinning, expand the deflection of steel, unit elongation, relative reduction in area, preferably plasticity and higher toughness and intensity; Enter stokehold to assemble production spare part and adjust, can avoid producing folding in the operation of rolling or scratching, destroy product surface, the crackle forming cracking, by carrying out pickling repeatedly, reconditioning, annealing, drawing to blank, accomplishes surperficial zero-fault.Find through the actual processing of client, namely this material meets the requirement of hardness and the coefficient of expansion, and cold-heading method can be adopted again to carry out simultaneous manufacturing.Material use efficiency can reach 95%, not only increases working (machining) efficiency, more saves material, reduces cost of goods manifactured.
Embodiment
Embodiment 1
Resonant rod cold-heading silk, its chemical composition is (wt.% represents): nickel: 35.6%, manganese: 0.35%, silicon: 0.3%, phosphorus: 0.18%, carbon: 0.02%, sulphur: 0.015%, iron: 63.535%.
Embodiment 2
Resonant rod cold-heading silk, its chemical composition is (wt.% represents): nickel: 36.8%, manganese: 0.5%, silicon: 0.28%, phosphorus: 0.10%, carbon: 0.015%, sulphur: 0.01%, iron: 62.295%.
Embodiment 3
Resonant rod cold-heading silk, its chemical composition is (wt.% represents): nickel: 36.2%, manganese: 0.33%, silicon: 0.17%, phosphorus: 0.13%, carbon: 0.021%, sulphur: 0.012%, iron: 63.137%.
The production method of above embodiment 1-3 comprises the following steps:
1, vacuum melting:
(1), raw material prepares: described furnace charge is Jinchuan Ni plate, Pure Silicon Metal, Mn, Ultra-low carbon and technical pure Fe material, for subsequent use after baking;
(2), feed: in vacuum induction melting furnace, load Jinchuan Ni plate, Pure Silicon Metal, Mn, Ultra-low carbon and technical pure Fe furnace charge for subsequent use after baking;
(3), refining: low power material, melt after 70% and add high-power high speed melt, when entering refining period after refining temperature 1500 DEG C to be achieved after fine melt, refining keeps 30 minutes;
(4), pour into a mould: the refining later stage turns rough vacuum (10
3-10
-1pa), high-power stirring tapping in a minute, waters injecting electrode.
2, esr:
(1), the allotment of striking agent and remelting electroslag system: be that the fluorite of 1:1 and titanium dioxide prepare striking agent with mass ratio, use CaF
2, Al
2o
3remelting electroslag system is made with CaO;
(2), shove charge: chassis, striking agent, crystallizer and electrode are installed, necessary first water flowing before dress crystallizer, and check with or without drainage, pad powder on trying to get to the heart of a matter and must be tight between crystallizer, pad powder inner ring will circle as far as possible, water tank face wants dry, clean, puts striking agent, to ensure its electroconductibility;
(3), striking slag making: reduce electrode and electrode is contacted with striking agent, complete striking work, striking agent is melted, add remelting electroslag system;
(4), smelt: when adding slag, spoon does not allow to contact with crystallizer, electrode bar or slag charge on crystallizer disorderly smash by slag spoon simultaneously, striking electric current is 500-1500A, normally smelt again after slag fine melt, control electric current 2500-3000A, voltage 38-41V, make electrode melting, until crystallizer is filled;
(5), feeding cooling: smelting finishes carries out feeding, feeding electric current diminishes gradually, until current value becomes 0, and feeding time 3-5 minute, electroslag face more than 3cm is left in electrode rising could have a power failure, de-ingot air cooling after remelted ingot cools 30 minutes in a crystallizer.
3, cogging is forged: (1), preheating: steel ingot base is heated to 850 DEG C by room temperature, answers slow heat, preheating 30-50 minute;
(2), heat up: steel nail base rapid heating is warmed up to 1050-1150 DEG C, and duty turns over ingot blank, makes its equalizing temperature, insulation 40-50 minute;
(3), be incubated: reach when forging temperature and be incubated, be incubated and forge for 20 minutes, initial forging temperature is 1100 DEG C, and final forging temperature is 950 DEG C.
(4), forging: forging adopts the second light industry bureau one weight, and two uniform methodologys make steel ingot.Forge the slag, rubbish etc. that start in front and process, to clear up surface in time, first touch with less deflection, improve rear bang of taking the circumstances into consideration etc. plasticity, touch again when closing on final forging temperature, require that distortion evenly, avoids repeatedly clashing at same position, forge in process and want duty to stand up, diligent charging, it is wide that each inlet amount should be less than brill, is greater than draught, avoids producing hammering and folding, failure surface, affects the quality of cold heading steel.
4, hot-roll forming:
(1), material loads the temperature of annealing furnace :≤600 DEG C;
(2), heating-up time >=120 minutes;
(3), Heating temperature: 1100-1150 DEG C;
(4), soaking time: >=30 minutes;
(5), begin to roll temperature: >=1100 DEG C;
(6), finishing temperature >=950 DEG C.
Enter stokehold to assemble production spare part and adjust, can avoid producing folding in the operation of rolling or scratching, destroy product surface, form the crackle of cracking.
5, crin drawing: (1), wire drawing skidding processing requirement: before operation, first puts into the lubricant (see table-1) prepared and lubricates, fully stir, coating uniform by parcel.Parcel after lubrication should evenly be spread out, carries out Exposure to Sunlight and dries or dry.
Lubricant formulation ratio
| Starting material title | Technical requirements | Quantity (kg) |
| Graphite Powder 99 | 200-300# | 50 |
| Machine oil | 20# | 50 |
| Soap | 5 | |
| Lime | 10 | |
| Water | 500 |
Table-1
(2), join mold technique requirement: according to dimensional requirement, need select the mould of suitable pass, it is as follows to join mold technique standard:
Unit (mm) " * " represents annealing (annealing temperature is see " well vacuum electric furnace thermal treatment (annealing) table look-up ")
￠ 18.0*-￠ 17.0*-￠ 16.0*-￠ 15.0*-￠ 14.0*-￠ 13.0*-￠ 10.0* and ￠ 8.5
Well vacuum electric furnace thermal treatment (annealing) table look-up
| Classification | State | Specification mm | Heating temperature DEG C | Soaking time | The type of cooling |
| Nickel-base alloy | Work in-process | ≥￠8 | 800-850 | >=40 minutes | Air cooling |
6, sour openpore material: after checking material mark, pickling tub submergence is put into by after loose for material bundle, pickling concentration is with the Weight computation of complex acid, with sulfuric acid immersion, salt acid rinse to white, pickling temperature 30-70 DEG C, pickling time 20-35 minute, the blank after pickling must embathe with high pressure water flushing wash clean, dry, and conveniently finds out surface crack.
Blank pickle solution proportioning:
| Pickle solution proportioning | Concentration % | Temperature DEG C | Time |
| HCL:HNO 3:H 2O=1:1: surplus | 15 | 30-50 | 10-20 |
| Pickle solution proportioning | Concentration % | Temperature DEG C | Time |
| H 2SO 4:HNO 3:NaCl:H 2O=4:1:1: surplus | 30 | 50-70 | 10-15 |
7, polishing deburring: check material surface situation, if any surface imperfection (as burr, foreskin, crackle), carry out reconditioning process with portable emery wheel, notes being with protection tool.
8, anneal: be placed on by crin in well annealing furnace and carry out anneal, temperature, at 800 DEG C-850 DEG C, is incubated 1-2 hour.
9, pickling test: with sulfuric acid immersion, salt acid rinse to white, pickling temperature 50-80 DEG C, pickling time 8-15 minute.Check material surface situation, carry out light pruning with portable emery wheel, require that the surface imperfection degree of depth is no more than 0.5mm.
| Pickle solution proportioning | Concentration % | Temperature DEG C | Time |
| HCL:HNO 3:H 2O=1:1: surplus | 15 | 30-50 | 3-15 |
| Pickle solution proportioning | Concentration % | Temperature DEG C | Time |
| H 2SO 4:HNO 3:NaCl:H 2O=4:1:1: surplus | 30 | 50-70 | 5-10 |
10, finish draw:
(1), wire drawing skidding processing requirement: before operation, first parcel is put into the lubricant (see table-1) prepared and lubricate, fully stir, coating uniform.Parcel after lubrication should evenly be spread out, carries out Exposure to Sunlight and dries or dry.
Join mold technique requirement: according to dimensional requirement, need select the mould of suitable pass, it is as follows to join mold technique standard:
Unit (mm) " * " represents annealing (annealing temperature is see " well vacuum electric furnace process (annealing) table look-up ")
￠ 18.0*-￠ 17.0*-￠ 16.0*-￠ 15.0*-￠ 14.0*-￠ 13.0*-￠ 10.0* and ￠ 8.5
(2), finish draw: often draw next specification all to need to carry out pickling test, reconditioning process.
11, thermal treatment: be placed in well formula argon shield bright annealing oven by the silk material after cold drawn and heat-treat, thermal treatment temp is at 800 DEG C-850 DEG C, and insulation is air cooling after 1-2 hour, discharging.
With the resonant rod cold-heading silk that the present invention produces, namely meet hardness needed for resonant rod and the requirement of the coefficient of expansion, the requirement that cold-heading is processed can be met again simultaneously.We are from affecting the chemical composition of steel of cold heading steel quality, surface imperfection, equipment adjustment, grain fineness number and the large factor of rolling method 4, ZGHL0.25-250-1 type vacuum induction melting furnace is used effectively to improve purity and the uniform texture of steel alloy, improve the surface of steel ingot, inner quality, improve the performance of steel alloy, reduce the content of nonmetallic inclusionsin steel and the gas content of H, O; Enter stokehold to assemble production spare part and adjust, avoid producing folding in the operation of rolling or scratching as far as possible, destroy product surface; Use well formula argon shield bright annealing oven to carry out deoxidation, crystal grain thinning, expand the deflection of steel, unit elongation, relative reduction in area, preferably plasticity and higher toughness and intensity; The crackle forming cracking, by carrying out pickling repeatedly, reconditioning, annealing, drawing to blank, accomplishes surperficial zero-fault, the strong lumber recovery that ensure that cold-heading silk.
Claims (2)
1. a resonant rod cold-heading silk, is characterized in that the mass percent of each chemical composition comprised is: nickel: 35-37%, manganese: 0.2-0.6%, silicon :≤0.3%, phosphorus :≤0.02%, carbon :≤0.05%, sulphur :≤0.02%, iron: surplus.
2. the production method for cold-heading silk of the resonant rod described in the claims 1, is characterized in that comprising the following steps:
1) vacuum melting: by Ni plate, Pure Silicon Metal, Mn, Ultra-low carbon technical pure Fe after baking, load in vacuum induction melting furnace and carry out melting, when entering refining period after refining temperature 1460-1660 DEG C to be achieved after fine melt, refining keeps at least 30 minutes, the refining later stage turns rough vacuum, high-power stirring tapping in a minute, waters injecting electrode;
2) esr: be that the fluorite of 0.9:1 to 1.1:1 and titanium dioxide prepare striking agent with mass ratio is the CaF of 7:2:1 with mass ratio
2, Al
2o
3remelting electroslag system is made with CaO; Shove charge, striking slag making, smelting, feeding, cooling, make steel ingot base; Striking electric current is 500-1500A, normally smelts after slag fine melt again, and control electric current 2500-3000A, voltage 38-41V, makes electrode melting, until crystallizer is filled, smelting finishes carries out feeding, the de-ingot air cooling of remelted ingot cooling;
3) hammer cogging: steel ingot base is heated to 850 DEG C by room temperature, preheating 30-50 minute; Be warmed up to 1000-1150 DEG C, insulation 40-50 minute; Reach forging temperature, initial forging temperature >=1100 DEG C, final forging temperature >=950 DEG C; Adopt the second light industry bureau one weight, two uniform methodologys make steel ingot;
4) hot-roll forming: material loads the temperature of annealing furnace :≤600 DEG C; Heating-up time >=120 minutes; Heating temperature: 1000-1150 DEG C; Soaking time: >=30 minutes, begins to roll temperature: >=1180 DEG C; Finishing temperature >=950 DEG C;
5) crin drawing: before operation, first carries out joining mould, carries out drawing process by deformation requirements glomerocryst mould;
6) sour openpore material: with sulfuric acid immersion, salt acid rinse to white, pickling temperature 50-80 DEG C, pickling time 20-30min;
7) polishing deburring: check material surface situation, and effects on surface defect carries out reconditioning process;
8) anneal: blank is placed in pit type annealing furnace and carries out anneal, temperature, at 800 DEG C-850 DEG C, is incubated 1-2 hour;
9) pickling test: with sulfuric acid immersion, salt acid rinse to white, pickling temperature 50-80 DEG C, pickling time 20-30min; Check material surface situation, carry out artificial reconditioning with portable emery wheel, require that the surface imperfection degree of depth is no more than 0.5mm;
10) finish draw: (1) joins mould:
(2) finish draw: often draw next specification all to need to carry out pickling test, reconditioning process;
11) thermal treatment: be placed in well formula argon shield bright annealing oven by the silk material after cold drawn and heat-treat, thermal treatment temp is at 800 DEG C-850 DEG C, and insulation is air cooling after 1-2 hour, discharging.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410255425.7A CN105316575B (en) | 2014-06-11 | 2014-06-11 | Cold-heading wire for resonance rod and production method thereof |
| CN201710307825.1A CN107022720A (en) | 2014-06-11 | 2014-06-11 | The production method of stock utilization higher resonant rod cold-heading silk |
| CN201710308108.0A CN107130182A (en) | 2014-06-11 | 2014-06-11 | A kind of stock utilization higher resonant rod cold-heading silk |
| CN201710308109.5A CN107043891B (en) | 2014-06-11 | 2014-06-11 | A kind of production method of resonant rod cold-heading silk |
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| CN201710308109.5A Division CN107043891B (en) | 2014-06-11 | 2014-06-11 | A kind of production method of resonant rod cold-heading silk |
| CN201710308108.0A Division CN107130182A (en) | 2014-06-11 | 2014-06-11 | A kind of stock utilization higher resonant rod cold-heading silk |
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| CN109023142A (en) * | 2018-08-21 | 2018-12-18 | 丹阳市凯鑫合金材料有限公司 | A kind of effective glass sealing alloy of vacuum heat-collecting and its production method |
| CN111383861A (en) * | 2018-12-28 | 2020-07-07 | 东莞科力线材技术有限公司 | Magnetic conductive material for electromagnetic relay and preparation method thereof |
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| CN113102671A (en) * | 2021-04-06 | 2021-07-13 | 无锡透平叶片有限公司 | Die forging method for superhard aluminum alloy forging of cone-barrel-shaped revolving body |
| CN115652182A (en) * | 2022-11-04 | 2023-01-31 | 江苏隆达超合金航材有限公司 | Method for controlling gas and inclusions in Invar36 alloy |
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| CN111383861A (en) * | 2018-12-28 | 2020-07-07 | 东莞科力线材技术有限公司 | Magnetic conductive material for electromagnetic relay and preparation method thereof |
| CN112458374A (en) * | 2020-10-26 | 2021-03-09 | 江苏新核合金科技有限公司 | Du-Mg wire material and preparation method thereof |
| CN113102671A (en) * | 2021-04-06 | 2021-07-13 | 无锡透平叶片有限公司 | Die forging method for superhard aluminum alloy forging of cone-barrel-shaped revolving body |
| CN115652182A (en) * | 2022-11-04 | 2023-01-31 | 江苏隆达超合金航材有限公司 | Method for controlling gas and inclusions in Invar36 alloy |
| CN115652182B (en) * | 2022-11-04 | 2024-02-02 | 江苏隆达超合金航材有限公司 | Method for controlling gas and inclusion in Invar36 alloy |
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| CN107022720A (en) | 2017-08-08 |
| CN107130182A (en) | 2017-09-05 |
| CN105316575B (en) | 2017-05-10 |
| CN107043891A (en) | 2017-08-15 |
| CN107043891B (en) | 2018-09-21 |
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