CN105220067B - The resonant rod of the radio-frequency (RF) device production method of invar cold-heading silk - Google Patents

The resonant rod of the radio-frequency (RF) device production method of invar cold-heading silk Download PDF

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CN105220067B
CN105220067B CN201410255452.4A CN201410255452A CN105220067B CN 105220067 B CN105220067 B CN 105220067B CN 201410255452 A CN201410255452 A CN 201410255452A CN 105220067 B CN105220067 B CN 105220067B
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temperature
cold
heading
production method
pickling
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CN105220067A (en
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荆正伟
钟静
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Danyang Kaixin Alloy Material Co Ltd
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Danyang Kaixin Alloy Material Co Ltd
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Priority to CN201710101980.8A priority Critical patent/CN106868405A/en
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Priority to CN201410255452.4A priority patent/CN105220067B/en
Priority to CN201710102000.6A priority patent/CN106834951A/en
Priority to CN201710101997.3A priority patent/CN106834950A/en
Priority to CN201710101999.2A priority patent/CN106868407A/en
Priority to CN201710101993.5A priority patent/CN106893937B/en
Priority to CN201710101979.5A priority patent/CN106893936B/en
Priority to CN201710101998.8A priority patent/CN106868406A/en
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    • 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
    • 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
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
    • 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
    • C22C33/06—Making ferrous alloys by melting using master alloys
    • 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
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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
    • Y02P10/20—Recycling
    • 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

Abstract

The present invention relates to resonant rod cold-heading silk and its production method, its chemical composition is：Nickel：35 37%, manganese：0.2 0.6%, silicon:≤ 0.3%, phosphorus：≤ 0.2%, carbon：≤ 0.05%, sulfur：≤ 0.02%, ferrum：Surplus.Its production method comprises the following steps：1）Vacuum melting；2）Electroslag remelting；3）Forge cogging；4）Hot-roll forming；5）Crin drawing；6）Sour openpore material；7）Polishing deburring；8）Annealing；9）Pickling is checked；10）Finish draw；11）Heat treatment.Cold-heading silk in the present invention guarantees to meet the requirement of the hardness needed for resonant rod and the coefficient of expansion from proportioning and production method, has good toughness simultaneously, disclosure satisfy that the requirement of cold-heading processing.Not only increase working (machining) efficiency, more improve the utilization rate of material, reduce the loss Manufacturing cost of Product processing.This production method includes vacuum melting operation, can make the H in cold-heading silk2, the gas content of O greatly reduce, control the formation of nonmetallic inclusion well, further increase purity and plasticity, the toughness of cold-heading silk, improve cold-heading silk material processing lumber recovery.

Description

The resonant rod of the radio-frequency (RF) device production method of invar cold-heading silk
Technical field
The present invention relates to the resonant rod of the radio-frequency (RF) device production method of invar cold-heading silk, meet that resonant rod is suitable for is required Hardness and the requirement of the coefficient of expansion, and disclosure satisfy that material and its production method of cold-heading processing, especially with respect to expansion alloy The improvement of the Ni-based 4J36 of material.
Background technology
Develop rapidly with mobile communication business, radio-frequency (RF) device becomes indispensable product in the construction of communication base station, and Apply to resonant rod product in a large number in radio-frequency (RF) device again.Resonant rod as the core component of radio-frequency (RF) device, for many years because its precision will Ask higher and lathe turning processing is carried out using bar, but develop and domestic recently as domestic and international communications industry is further The acceleration that communication master device business cracks the international market, the market demand of radio-frequency devices is increasing, and currently manufactured resonant rod is equal Machining is carried out to resonant rod using Digit Control Machine Tool (CNC), the problem therefore brought is that rapidoprint wastes seriously, material profit Only have 60%～70% with rate, and process time is longer, working (machining) efficiency is only 30～40/hour.The processing effect of resonant rod Rate becomes restriction client's improving product yield, reduces the obstacle of every cost.In the research and practice process to prior art Find：Traditional cold-heading processing method is mainly for the manufacture of parts such as bolt, nut, iron nail, rivet and steel balls.Forging stock material is permissible It is copper, aluminum, carbon steel, steel alloy, rustless steel and titanium alloy etc., stock utilization, up to 80～90%, not only increases processing effect Rate, more material-saving, reduce cost of goods manufactured.And existing resonance bar material is due to hardness to be met and the coefficient of expansion Require, therefore it can not carry out simultaneous manufacturing using cold-heading method.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of producer of the resonant rod of radio-frequency (RF) device invar cold-heading silk Method, to obtain the requirement of the hardness needed for the resonant rod meeting in radio-frequency (RF) device and the coefficient of expansion, disclosure satisfy that cold-heading is processed simultaneously Requirement cold-heading silk.
Inventive concept：Suitably adjust original 4J36 expansion alloy material composition in GB allowed band, incorporate new life Product method.
For solving above-mentioned technical problem, 4J36 expansion alloy material selected by described cold-heading silk, and each group that it comprises is divided into （Wt.% represents）：Nickel：35-37%, manganese：0.2-0.6%, silicon:≤ 0.3%, phosphorus：≤ 0.2%, carbon：≤ 0.05%, sulfur：≤ 0.02%, Ferrum：Surplus.
The production method of described cold-heading silk comprises the following steps：Vacuum melting → electroslag remelting → forge cogging → hot rolling Molding → crin drawing → acid openpore material → polishing deburring → annealing → pickling test → cold drawn → heat treatment, wherein：
1）Vacuum melting：Jinzhou east electric furnace is loaded limited after will be toasted to raw material Jinchuan Ni plate, metallic silicon, Mn, pure Fe Carry out melting in the ZGHL0.25-250-1 type vacuum induction melting furnace that company produces, after melting the 70% of gross mass, increase power High speed melt, refining temperature 1460-1660 DEG C to be achieved after fine melt（Preferably 1500 DEG C）Enter refining period afterwards, refine keeps 30 Minute, the refine later stage turns coarse vacuum（103—10-1Pa）, high-power stirring 1-3 minute tapping, pour injecting electrode.
2）Electroslag remelting：It is 1 with mass ratio：1 fluorite prepares striking agent with titanium dioxide, uses CaF2、Al2O3With CaO system Make remelting electroslag system, wherein, the mass percent of three is：CaF2:65%-75%, Al2O3:15%-25%, CaO:Surplus；Dress Stove, striking slag making, smelting, feeding, cooling, make steel ingot base；Plus during slag spoon do not allow to contact with crystallizer, electrode bar simultaneously or The slag charge on crystallizer disorderly smash by slag spoon, and striking electric current is 500-1500A, is normally smelted, control electric current after slag fine melt again 2500-3000A, voltage 38-41V, make electrode melting, and till crystallizer is filled, smelting finishes carries out feeding, remelted ingot The de- ingot air cooling of cooling.
Described vacuum metling operation and electroslag remelting operation, the ZGHL0.25-250-1 type vacuum induction melting furnace of use has Improve to effect degree of purity and the uniform texture of steel alloy, improve surface, the inherent quality of steel ingot, improve steel alloy Performance, reduce further the yield of nonmetallic inclusionsin steel.
3）Forge cogging：
（1）Preheating：Steel ingot base is heated to 850 DEG C by room temperature, preheats 30-50 minute；
（2）Heat up：It is warmed up to 1050-1150 DEG C and turns over ingot blank, be incubated 40-50 minute；
（3）Insulation：When reaching forging temperature, initial forging temperature >=1100 DEG C, final forging temperature >=950 DEG C.
（4）Forging：Using the second light industry bureau one weight, two uniform maneuvers make steel ingot.
Described forging is to forge beginning to be touched with less deflection, takes the circumstances into consideration to thump, close on after improving etc. plasticity Touch again during final forging temperature it is desirable to deform uniformly, it is to avoid repeatedly clash in same position, want duty to stand up during forging, duty is entered Material, each inlet amount should be less than boring width, more than drafts, it is to avoid produces hammering and folding, destroys surface, the matter of impact cold-forging steel Amount.
4）Hot-roll forming：Material loads the temperature of annealing furnace：≤600℃；Heating-up time >=120 minute；Heating-up temperature： 1100-1150℃；Temperature retention time：>=30 minutes, begin to roll temperature：≥1100℃；Finishing temperature >=950 DEG C.
Above-mentioned hot-rolled process, enters stokehold and production spare part is assembled and adjusts, can avoid producing folding in the operation of rolling Fold or scratch, destroy product surface, form the crackle of cracking.
5）Crin drawing：Before operation, first carry out joining mould, carry out drawing process by deformation requirements with glomerocryst mould.
Described crin drawing procedure, according to dimensional requirement, need to select the mould of suitable pass, join mold technique standard as follows：
Unit（mm）" * " represents annealing（Annealing temperature referring to《Well vacuum electric furnace heat treatment（Annealing）Catalog》）
￠ 18.0* ￠ 17.0* ￠ 16.0* ￠ 15.0* ￠ 14.0* ￠ 13.0* ￠ 10.0* and ￠ 8.5*
Well vacuum electric furnace heat treatment（Annealing）Catalog
Classification State Specification mm Heating-up temperature DEG C Temperature retention time The type of cooling
Nickel-base alloy Semi-finished product >=￠ 8 800-850 >=40 minutes Air cooling
6）Sour openpore material：With soak with sulphuric acid, salt acid rinse to white, 30-70 DEG C of pickling temperature, pickling time 20-35 divides Clock.Blank pickle proportioning：
Pickle proportioning Concentration % Temperature DEG C Time
HCL:HNO3:H2O=1:1:Surplus 15 30-50 10-20
Pickle proportioning Concentration % Temperature DEG C Time
H2SO4:HNO3:NaCl:H2O=4:1:1:Surplus 30 50-70 10-15
Described pickling process, concentration is calculated with the weight of complex acid, and the blank after pickling must embathe and high pressure water washing Totally, conveniently find out face crack.
7）Polishing deburring：Check material surface situation, if any surface defect（As burr, foreskin, crackle）, use portable sand Wheel carries out reconditioning process.
8）Annealing：Crin is placed in pit type annealing furnace and is made annealing treatment, temperature is at 800 DEG C -850 DEG C, it is incubated 1-2 hour.
9）Pickling test：With soak with sulphuric acid, salt acid rinse to white, 50-80 DEG C of pickling temperature, pickling time 8-15 divides Clock.Check material surface situation, carry out light pruning with portable emery wheel it is desirable to surface defect depth is less than 0.5mm.
10）Finish draw：（1）Join mould：The mould of suitable pass according to dimensional requirement, need to be selected, join mold technique standard as follows：
Unit（mm）" * " represents annealing（Annealing temperature referring to《Well vacuum electric furnace is processed（Annealing）Catalog》）,
￠ 18.0* ￠ 17.0* ￠ 16.0* ￠ 15.0* ￠ 14.0* ￠ 13.0* ￠ 10.0* and ￠ 8.5.
（2）Finish draw：Next specification is often drawn all to need to carry out pickling test, reconditioning is processed.
11）Heat treatment：Silk material after will be cold drawn is placed in well formula argon protection bright annealing furnace and carries out heat treatment, at heat Reason temperature, at 800 DEG C -850 DEG C, is incubated air cooling after 1-2 hour, discharging.
Above-mentioned annealing heat-treats and heat treatment, can improve or eliminate steel institute during casting, forging, roll etc. The various tissues disappearance causing and residual stress, and crystal grain thinning is it is therefore prevented that stress concentration, thus reducing opening of cold-forging steel Split probability, larger deflection can be born, there is larger elongation percentage, the contraction percentage of area, preferable plasticity and higher Toughness and intensity.
The chemical composition of the steel from impact cold-heading steel quality for the present invention, surface defect, equipment adjustment, grain size and rolling side The big factor of method 4 is set out, using ZGHL0.25-250-1 type vacuum induction melting furnace be effectively improved steel alloy degree of purity and Uniform texture, improves surface, the inherent quality of steel ingot, improves the performance of steel alloy, reduces nonmetallic folder in steel The content of debris and the gas content of H, O；Deoxidation, crystal grain thinning, expand the deflection of steel, elongation percentage, the contraction percentage of area, relatively Good plasticity and higher toughness and intensity；Enter stokehold production spare part to be assembled and adjusts, can avoid in the operation of rolling Middle generation folds or scratches, and destroys product surface, and the crackle forming cracking by carrying out pickling repeatedly, reconditioning, moving back to blank Fire, drawing, accomplish surface zero-fault.Find through client's reality processing, this material meets hardness and the requirement of the coefficient of expansion, and Simultaneous manufacturing can be carried out using cold-heading method.Stock utilization, up to 95%, not only increases working (machining) efficiency, more saves Material, reduces cost of goods manufactured.
Specific 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%, sulfur：0.015%, ferrum：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%, sulfur：0.01%, ferrum：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%, sulfur：0.012%, ferrum：63.137%.
The production method of above example 1-3 comprises the following steps：
1st, vacuum melting：
（1）, raw material prepare：Described furnace charge is Jinchuan Ni plate, metallic silicon, Mn, Ultra-low carbon and technical pure Fe material, toasted Standby afterwards；
（2）, charging：Vacuum induction melting furnace loads toasted after standby Jinchuan Ni plate, metallic silicon, Mn, ultralow Carbon and technical pure Fe furnace charge；
（3）, refine：Low-power material, increases power high speed melt, refining temperature to be achieved after fine melt after melting 70% Refining period is entered, refine keeps 30 minutes after 1500 DEG C；
（4）, cast：The refine later stage turns coarse vacuum（103—10-1Pa）, high-power stirring tapping in a minute, pour injecting electrode.
2nd, electroslag remelting：
（1）, the allotment of striking agent and remelting electroslag system：It is 1 with mass ratio：1 fluorite prepares striking agent with titanium dioxide, Use CaF2、Al2O3Make remelting electroslag system with CaO；
（2）, shove charge：Chassis, striking agent, crystallizer and electrode are installed, necessary elder generation water flowing before dress crystallizer, and check Have or not drainage, try to get to the heart of a matter on pad powder and crystallizer between must be tight, pad powder inner ring will be justified as far as possible, water tank face will be dried, Totally, put striking agent, to ensure its electric conductivity；
（3）, striking slag making：Reducing electrode makes electrode contact with striking agent, completes striking work, so that striking agent is melted, plus Enter remelting electroslag system；
（4）, smelt：Plus spoon does not allow to contact with crystallizer, electrode bar or the slag on crystallizer disorderly smash by slag spoon during slag simultaneously Material, striking electric current is 500-1500A, is normally smelted, control electric current 2500-3000A, voltage 38-41V after slag fine melt again, Make electrode melting, till crystallizer is filled；
（5）, feeding cooling：Smelting finishes and carries out feeding, and feeding electric current tapers into, and till current value is changed into 0, mends Contracting time 3-5 minute, electrode is lifted off more than electroslag face 3cm could have a power failure, and remelted ingot cools down 30 points in a crystallizer Ingot air cooling is taken off after clock.
3rd, forge cogging：（1）, preheating：Steel ingot base is heated to 850 DEG C by room temperature, answers slow heat, and preheating 30-50 divides Clock；
（2）, heat up：Steel nail base quickly heats to 1050-1150 DEG C, and duty turns over ingot blank so as to equalizing temperature, is incubated 40-50 minute；
（3）, insulation：Reach and be incubated when forging temperature, insulation is forged for 20 minutes, initial forging temperature is 1100 DEG C, Final forging temperature is 950 DEG C.
（4）, forging：Forging adopts the second light industry bureau one weight, and two uniform maneuvers make steel ingot.Forge beginning before and during should The slag on cleaning surface, rubbish etc., are first touched with less deflection in time, take the circumstances into consideration to thump, close on after improving etc. plasticity Touch again during final forging temperature it is desirable to deform uniformly, it is to avoid repeatedly clash in same position, want duty to stand up during forging, duty is entered Material, each inlet amount should be less than boring width, more than drafts, it is to avoid produces hammering and folding, destroys surface, the matter of impact cold-forging steel Amount.
4th, hot-roll forming：
（1）, material load annealing furnace temperature：≤600℃；
（2）, heating-up time >=120 minute；
（3）, heating-up temperature：1100-1150℃；
（4）, temperature retention time：>=30 minutes；
（5）, begin roll temperature：≥1100℃；
（6）, finishing temperature >=950 DEG C.
Enter stokehold production spare part to be assembled and adjusts, can avoid producing folding in the operation of rolling or scratch, destroy Product surface, forms the crackle of cracking.
5th, crin drawing：（1）, wire drawing skidding technological requirement：Before operation, first parcel is put into the lubricant preparing（See Table -1）In be lubricated, be sufficiently stirred for, coating uniform.Parcel after lubrication should uniformly be spread out, carry out Exposure to Sunlight and dry or dry.
Lubricant formulation ratio
Raw material title Technical requirements Quantity（kg）
Graphite powder 200-300# 50
Machine oil 20# 50
Soap 5
Calx 10
Water 500
Table -1
（2）, join mold technique requirement：The mould of suitable pass according to dimensional requirement, need to be selected, join mold technique standard as follows：
Unit（mm）" * " represents annealing（Annealing temperature referring to《Well vacuum electric furnace heat treatment（Annealing）Catalog》）
￠ 18.0* ￠ 17.0* ￠ 16.0* ￠ 15.0* ￠ 14.0* ￠ 13.0* ￠ 10.0* and ￠ 8.5
Well vacuum electric furnace heat treatment（Annealing）Catalog
Classification State Specification mm Heating-up temperature DEG C Temperature retention time The type of cooling
Nickel-base alloy Semi-finished product >=￠ 8 800-850 >=40 minutes Air cooling
6th, sour openpore material：After verification material trademark, material is dissipated and after bundle, puts into submergence in pickling tube, pickling concentration is with complex acid Weight calculate, with soak with sulphuric acid, salt acid rinse to white, 30-70 DEG C of pickling temperature, pickling time 20-35 minute, after pickling Blank must embathe with high pressure water flushing wash clean, dry, conveniently find out face crack.
Blank pickle proportioning：
Pickle proportioning Concentration % Temperature DEG C Time
HCL:HNO3:H2O=1:1:Surplus 15 30-50 10-20
Pickle proportioning Concentration % Temperature DEG C Time
H2SO4:HNO3:NaCl:H2O=4:1:1:Surplus 30 50-70 10-15
7th, polishing deburring：Check material surface situation, if any surface defect（As burr, foreskin, crackle）, use portable sand Wheel carries out reconditioning process, notes having carried protection tool.
8th, make annealing treatment：Crin is placed in well annealing furnace and is made annealing treatment, temperature, at 800 DEG C -850 DEG C, is protected Warm 1-2 hour.
9th, pickling test：With soak with sulphuric acid, salt acid rinse to white, 50-80 DEG C of pickling temperature, pickling time 8-15 divides Clock.Check material surface situation, carry out light pruning with portable emery wheel it is desirable to surface defect depth is less than 0.5mm.
Pickle proportioning Concentration % Temperature DEG C Time
HCL:HNO3:H2O=1:1:Surplus 15 30-50 3-15
Pickle proportioning Concentration % Temperature DEG C Time
H2SO4:HNO3:NaCl:H2O=4:1:1:Surplus 30 50-70 5-10
10th, finish draw：
（1）, wire drawing skidding technological requirement：Before operation, first parcel is put into the lubricant preparing（It is shown in Table -1）In carry out Lubrication, is sufficiently stirred for, coating uniform.Parcel after lubrication should uniformly be spread out, carry out Exposure to Sunlight and dry or dry.
Join mold technique requirement：The mould of suitable pass according to dimensional requirement, need to be selected, join mold technique standard as follows：
Unit（mm）" * " represents annealing（Annealing temperature referring to《Well vacuum electric furnace is processed（Annealing）Catalog》）
￠ 18.0* ￠ 17.0* ￠ 16.0* ￠ 15.0* ￠ 14.0* ￠ 13.0* ￠ 10.0* and ￠ 8.5
（2）, finish draw：Next specification is often drawn all to need to carry out pickling test, reconditioning is processed.
11st, heat treatment：Silk material after will be cold drawn is placed in well formula argon protection bright annealing furnace and carries out heat treatment, at heat Reason temperature, at 800 DEG C -850 DEG C, is incubated air cooling after 1-2 hour, discharging.
The resonant rod cold-heading silk being produced with the present invention, that is, meet the requirement of the hardness needed for resonant rod and the coefficient of expansion, Disclosure satisfy that the requirement of cold-heading processing simultaneously again.The chemical composition of our steel from impact cold-heading steel quality, surface defect, equipment Adjustment, grain size and the big factor of milling method 4 are set out, and are effectively improved using ZGHL0.25-250-1 type vacuum induction melting furnace The degree of purity of steel alloy and uniform texture, improve surface, the inherent quality of steel ingot, improve the performance of steel alloy, Reduce the content of nonmetallic inclusionsin steel and the gas content of H, O；Enter stokehold production spare part to be assembled and adjusts, Avoid producing in the operation of rolling as far as possible and fold or scratch, destroy product surface；Entered using well formula argon protection bright annealing furnace Row deoxidation, crystal grain thinning, expand the deflection of steel, elongation percentage, the contraction percentage of area, preferable plasticity and higher toughness and strong Degree；The crackle forming cracking, by blank is carried out with pickling repeatedly, reconditioning, annealing, drawing, accomplishes surface zero-fault, effectively The lumber recovery that ensure that cold-heading silk.

Claims (1)

1. a kind of resonant rod of radio-frequency (RF) device with the production method of invar cold-heading silk it is characterised in that：
The mass percent of each composition that described cold-heading silk includes is：Nickel：35-37%, manganese：0.2-0.6%, silicon:≤ 0.3%, Phosphorus：≤ 0.02%, carbon：≤ 0.05%, sulfur：≤ 0.02%, ferrum：Surplus；
The production method of described cold-heading silk, comprises the following steps：
1）Vacuum melting：Ni plate, metallic silicon, Mn, pure Fe are loaded in vacuum induction melting furnace and carry out melting, when treating after fine melt Refining period is entered, refine keeps at least 30 minutes, and the refine later stage turns coarse vacuum 10 after reaching refining temperature 1460-1660 DEG C3— 10-1Pa, stirring 1-3 minute tapping, pour injecting electrode；
2）Electroslag remelting：It is 1 with mass ratio：1 fluorite prepares striking agent with titanium dioxide, uses CaF2、Al2O3With CaO system Make remelting electroslag system, wherein, the mass percent of three is：CaF2:65%-75%, Al2O3:15%-25%, CaO:Surplus；Dress Stove, striking slag making, smelting, feeding, cooling, make steel ingot base；
3）Hammer cogging：Steel ingot base is heated to 850 DEG C by room temperature, preheats 30-50 minute；It is 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；
4）Hot-roll forming：Material loads the temperature of annealing furnace：≤ 600℃ ；Heating-up time >=120 minute；Heating-up temperature： 1000-1150℃ ；Temperature retention time：>=30 minutes, begin to roll temperature：≥ 1180℃ ；Finishing temperature >=950 DEG C；
5）Crin drawing：Before operation, first carry out joining mould, carry out drawing process by deformation requirements with glomerocryst mould；
6）Sour openpore material：With soak with sulphuric acid, salt acid rinse to white, 50-80 DEG C of pickling temperature, pickling time 20-30min；
7）Polishing deburring：Check material surface situation, and reconditioning process is carried out to surface defect；
8）Annealing：Annealing temperature, at 800 DEG C -850 DEG C, is incubated 1-2 hour；
9）Pickling test：With soak with sulphuric acid, salt acid rinse to white, 50-80 DEG C of pickling temperature, pickling time 20-30min；Inspection Look into material surface situation, carry out artificial reconditioning with portable emery wheel it is desirable to surface defect depth is less than 0.5mm；
10）Finish draw；
11）Heat treatment：Heat treatment temperature, at 800 DEG C -850 DEG C, is incubated air cooling after 1-2 hour, discharging.
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CN201710102000.6A CN106834951A (en) 2014-06-11 2014-06-11 A kind of resonant rod of RF device invar cold-heading silk
CN201710101997.3A CN106834950A (en) 2014-06-11 2014-06-11 A kind of production method of invar cold-heading silk
CN201710101999.2A CN106868407A (en) 2014-06-11 2014-06-11 The resonant rod of the RF device of vacuum melting with invar cold-heading silk production method
CN201710101980.8A CN106868405A (en) 2014-06-11 2014-06-11 Using the production method of the invar cold-heading silk of electroslag remelting process
CN201710101979.5A CN106893936B (en) 2014-06-11 2014-06-11 The production method of the resonant rod of the RF device of vacuum melting invar cold-heading silk
CN201710101993.5A CN106893937B (en) 2014-06-11 2014-06-11 Using the resonant rod of vacuum melting and electroslag remelting process invar cold-heading silk
CN201710101998.8A CN106868406A (en) 2014-06-11 2014-06-11 The resonant rod of lumber recovery RF device higher with invar cold-heading silk production method

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