CN108907495A - NiCr44Ti welding wire and its production technology - Google Patents
NiCr44Ti welding wire and its production technology Download PDFInfo
- Publication number
- CN108907495A CN108907495A CN201810709306.2A CN201810709306A CN108907495A CN 108907495 A CN108907495 A CN 108907495A CN 201810709306 A CN201810709306 A CN 201810709306A CN 108907495 A CN108907495 A CN 108907495A
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- welding wire
- nicr44ti
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3033—Ni as the principal constituent
- B23K35/304—Ni as the principal constituent with Cr as the next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
Abstract
A kind of NiCr44Ti welding wire provided by the invention, the weight percent content of each ingredient are：It is 0.3 ~ 1.0%, C be 0.01 ~ 0.10%, Mn be≤0.20%, Si be≤0.20%, S be≤0.015%, P be≤0.02%, Fe be≤0.50%, Cu is≤0.50% that Cr, which is 42 ~ 46%, Ti, surplus Ni；Its production technology includes：Ingredient, vacuum induction melting, forging, rolling, annealing, drawing and inspection.NiCr44Ti welding wire of the invention has compared with high-ductility, welding performance, and lumber recovery is high；Welding wire mechanical property is good, has excellent resistance to high temperature oxidation and corrosion resistance, is suitble to the pipeline welding of chemical industry, power field.
Description
Technical field
The present invention relates to special alloy welding wire technology fields, can be applied to high temperature, corrosion and punching more particularly to one kind
Lose the NiCr44Ti welding wire and its production technology of the pipeline welding of environment.
Background technique
In chemical industry and Industrial Boiler such as power plant boiler field, many pipelines can be used, these pipelines at work can
Environment in high temperature, heavy corrosion or liquid continuous erosion, welding and reparation between pipeline and pipeline need to use welding wire,
So for the pipeline welding wire in these fields, in addition to the welding performance and lumber recovery of welding wire itself, welding wire it is resistant to high temperatures
Oxidation susceptibility, erosion resistance corrosion resistance are also very important Consideration.Currently based on the nickel-based welding wire that national standard generates, base
This is not able to satisfy the welding demand of the pipeline under this application circumstances, and therefore, it is necessary to the elements to current nickel-based welding wire
Composition and production technology optimize, it is made to meet higher application demand.
Summary of the invention
For the problems in above-mentioned concrete application, the object of the present invention is to provide a kind of pair of alloying component, manufacturing process into
Row optimization, lumber recovery is high, welding performance is excellent and can satisfy the nickel-base alloy bare welding filler metal used under harsh environment and its preparation side
Method.
To achieve the object of the present invention, the present invention proposes a kind of NiCr44Ti welding wire, the weight of component and each ingredient
Measuring degree is：Cr be 42 ~ 46%, Ti be 0.3 ~ 1.0%, C be 0.01 ~ 0.10%, Mn be≤0.20%, Si be≤
It is≤0.02%, Fe be≤0.50%, Cu is≤0.50% that 0.20%, S, which are≤0.015%, P, surplus Ni.
Preferably, the weight percent content of the NiCr44Ti welding wire, component and each ingredient is：Cr is 43
~ 45%, Ti be 0.4 ~ 0.8%, C be 0.01 ~ 0.10%, Mn be≤0.20%, Si be≤0.20%, S be≤0.015%, P be≤
0.02%, Fe are that≤0.50%, Cu is≤0.50%, surplus Ni.
Another object according to the present invention, the present invention also propose the production technology of above-mentioned NiCr44Ti welding wire, the production
Technique includes the following steps：
S1. ingredient：Prepare raw material, material surface polishing or polishing according to design ingredient and weight percent；
S2. vacuum induction melting：Electrolytic nickel, crome metal, high-purity carbon are first fully enclosed crucible, Titanium and metallic aluminium are bundled into one
Packet, magnesium-nickel alloy and calcium-silicon are bundled into one and are packaged into feeder, and bell is closed after charging and is vacuumized；After melting starts, from
Small-power power transmission step by step, finally with maximum power power transmission until melting down；Melting down backward motion crucible 2-3 times, power is reduced to 80-
90KW is refined, and refining period is kept for 20 minutes；Have a power failure after refining, carries out cooling conjunctiva；Power is improved to 100KW or more
Power transmission rushes film heating, then reduces power, and titanium and aluminium is added, fascinates crucible 2-3 times, adjusts temperature, closes valve, fills height in furnace
Then pure argon is added magnesium-nickel alloy and calcium-silicon, prepares casting to 0.7 atmospheric pressure；Natural air cooling after ingot casting is come out of the stove；
S3. it forges：Heating temperature is 1180 ~ 1200 DEG C when forging；
S4. it rolls：Heating temperature is 1160 ~ 1180 DEG C when rolling, the wire rod of rolling 6.5 ~ 8.5 ㎜ of φ；
S5. it anneals：Wire annealing temperature：1160 ~ 1180 DEG C, soaking time：1 hour, the type of cooling：Hardening；
S6. drawing：Wire rod carries out drawing after hot dip coating and drying, obtains the welding wire of φ 1.65-1.67mm；
S7. it examines：Including its size, tensile strength, surface quality, flaw detection.
Preferably, it is cast for electrification casting in the step S2, and when the vacuum degree in vacuum drying oven is less than 10Pa
It can carry out power transmission.
It further preferably, is that multi-pass gradually drawing, the per pass line of drawing are carried out using diamond mould in the step S6
Material sizing reduction is in 0.05-0.08mm.
Further preferably, further include the steps that playing disk after being straightened wire rod finished product after the step S7.
Each chemical element influences the performance of welding wire as follows in NiCr44Ti welding wire：
（1）Si element：Oxidation film is formed on the surface of weld seam, improves the inoxidizability of weld seam at high temperature, while is still good
Deoxidier, and can increase slag and melt metal mobility.
（2）Mn element：Good desulfurizing agent, while being also solution strengthening element, the intensity and hardness of weld seam can be improved.
（3）Cr element：The key element of high-temperature oxidation resistance and anti-corrosion capability, in the protection oxidation film master that high temperature is formed
It will be by Cr2O3Composition, with Cr2O3Based on oxidation film it is finer and close, adhesion is also relatively strong, it is ensured that alloy is long-term at high temperature
It uses.
（4）Ni element：Ni and other elements form austenite lattice, and high temperature is not undergone phase transition, and stability is good at high temperature.
Ni is austenizer, can provide good comprehensive performance, can form solid solution with Cr under high temperature, have relatively high
Elevated temperature strength has high plasticity, good process industrial art performance at room temperature.
（5）Ti element：Intermediate compound hardening constituent, elevated temperature strength with higher, corrosion resistance are formed with Ni.
（6）Fe element：Solution strengthening element forms solid solution with Ni.
Compared with prior art, NiCr44Ti welding wire of the invention in alloy element and its content carried out it is stringent
Control is conducive to the plasticity for improving material, convenient for alloy is processed into thinner welding wire and guarantees the welding performance of welding wire；Using
Vacuum induction melting advantageously reduces gas content and harmful element content, not oxidizable with elements such as Ti existing for season；System
The welding wire mechanical property obtained is good, has excellent resistance to high temperature oxidation and corrosion resistance.
Specific embodiment
To make to have further understanding to the purpose of the present invention, construction, feature and its function, hereby cooperate embodiment detailed
It is described as follows.
Embodiment one：
The NiCr44Ti welding wire of the present embodiment, the weight percent content of each ingredient are：Cr is 42%, Ti 0.3%, and C is
0.01%, Mn 0.15%, Si 0.15%, S 0.01%, P 0.01%, Fe 0.30%, Cu 0.30%, surplus Ni.
Embodiment two：
The NiCr44Ti welding wire of the present embodiment, the weight percent content of each ingredient are：Cr is 46%, Ti 1.0%, and C is
0.10%, Mn 0.20%, Si 0.20%, S 0.015%, P 0.02%, Fe 0.50%, Cu 0.50%, surplus Ni.
Embodiment three：
The NiCr44Ti welding wire of the present embodiment, the weight percent content of each ingredient are：Cr is 44%, Ti 0.7%, and C is
0.05%, Mn 0.18%, Si 0.18%, S 0.012%, P 0.015%, Fe 0.40%, Cu 0.40%, surplus Ni.This
The production technology of the NiCr44Ti welding wire of above-described embodiment of invention includes the following steps：
S1. ingredient：Ingredient, material surface polishing or polishing are carried out according to each ingredient and its weight percent；
S2. vacuum induction melting：Raw material electrolytic nickel, crome metal, high-purity carbon are fully enclosed crucible, and Titanium is bundled into metallic aluminium
One packet, magnesium-nickel alloy and calcium-silicon are bundled into one and are packaged into feeder, and bell is closed after charging, first starts to vacuumize, vacuum
When degree is less than 10Pa, power transmission can be carried out；After melting starts, from small-power (40-60KW) power transmission step by step, finally with maximum power
（100KW or more, such as 120KW）Power transmission is until melting down, and melting down backward motion crucible 2-3 times, reduction power to 90-100KW carries out
Refining, refining period are kept for 20 minutes；Have a power failure after refining, carries out cooling conjunctiva；It is high-power（100KW or more）Power transmission rushes film liter
Temperature, then reduction power to 90KW or so, is added titanium and aluminium, fascinates crucible 2-3 times, adjusts temperature, closes valve, fills height in furnace
Then pure argon is added magnesium-nickel alloy and calcium-silicon, prepares casting to 0.7 atmospheric pressure；Natural air cooling after ingot casting is come out of the stove；
S3. it forges：Heating temperature is 1180 ~ 1200 DEG C when forging；
S4. it rolls：Heating temperature is 1160 ~ 1180 DEG C when rolling, the wire rod of rolling 6.5 ~ 8.5 ㎜ of φ；
S5. it anneals：Wire annealing temperature：1160 ~ 1180 DEG C, soaking time：1 hour, the type of cooling：Hardening；
S6. drawing：Wire rod carries out drawing after hot dip coating and drying, obtains the welding wire of φ 1.65-1.67mm；
S7. it examines：Including its size, tensile strength, surface quality, flaw detection.
In above-mentioned step S5, when the gauge or diameter of wire of rolling is smaller, for example, gas guarantor need to be carried out when being lower than φ 6mm
Continuous annealing is protected, annealing temperature is not less than 1080 DEG C；In addition, in a preferred embodiment, in the drawing process of step S6
In, using multi pass drawing, the sizing reduction of each drawing wires is controlled in 0.05-0.08mm；In addition, beating Pan Bao in wire rod finished product
The alignment of spooler straightening-wheel is had to pass through before dress.
When the wire rod of φ 1.6 is made, tensile strength exists NiCr44Ti welding wire made from the various embodiments described above of the invention
1000-1200MPa has extremely excellent mechanical property.
Table 1：NiCr44Ti welding wire the performance test results
NiCr44Ti welding wire of the invention in alloying component element species and its content carried out stringent control, be conducive to
The plasticity for improving material, convenient for alloy is processed into thinner welding wire, and ensure that the welding performance of welding wire；Using vacuum induction
Melting advantageously reduces gas content and harmful element content, not oxidizable with elements such as Ti existing for season.Weldering of the invention
Silk mechanical property is good, has excellent resistance to high temperature oxidation and corrosion resistance, is suitble to the pipeline welding of chemical industry, power field.
The present invention is described by above-mentioned related embodiment, however above-described embodiment is only to implement example of the invention.
It must be noted that the embodiment disclosed is not limiting as the scope of the present invention.On the contrary, do not depart from spirit of the invention and
It is changed and retouched made by range, belongs to scope of patent protection of the invention.
Claims (6)
1. a kind of NiCr44Ti welding wire, which is characterized in that the weight percent content of the component of the welding wire and each ingredient
For：Cr be 42 ~ 46%, Ti be 0.3 ~ 1.0%, C be 0.01 ~ 0.10%, Mn be≤0.20%, Si be≤0.20%, S be≤
It is≤0.50%, Cu is≤0.50% that 0.015%, P, which are≤0.02%, Fe, surplus Ni.
2. NiCr44Ti welding wire as described in claim 1, which is characterized in that the weight of the component of the welding wire and each ingredient
Measuring degree is：Cr be 43 ~ 45%, Ti be 0.4 ~ 0.8%, C be 0.01 ~ 0.10%, Mn be≤0.20%, Si be≤
It is≤0.02%, Fe be≤0.50%, Cu is≤0.50% that 0.20%, S, which are≤0.015%, P, surplus Ni.
3. a kind of production technology for preparing NiCr44Ti welding wire as claimed in claim 1 or 2, which is characterized in that the welding wire
Production technology include the following steps：
S1. ingredient：Prepare raw material, material surface polishing or polishing according to design ingredient and weight percent；
S2. vacuum induction melting：Electrolytic nickel, crome metal, high-purity carbon are first fully enclosed crucible, Titanium and metallic aluminium are bundled into one
Packet, magnesium-nickel alloy and calcium-silicon are bundled into one and are packaged into feeder, and bell is closed after charging and is vacuumized；After melting starts, from
Small-power power transmission step by step, finally with maximum power power transmission until melting down；Melting down backward motion crucible 2-3 times, power is reduced to 90-
100KW is refined, and refining period is kept for 20 minutes；Have a power failure after refining, carries out cooling conjunctiva；Improve power to 100KW with
Upper power transmission rushes film heating, then reduces power, and titanium and aluminium is added, fascinates crucible 2-3 times, adjusts temperature, closes valve, fills in furnace
Then high-purity argon gas is added magnesium-nickel alloy and calcium-silicon, prepares casting to 0.7 atmospheric pressure；Natural air cooling after ingot casting is come out of the stove；
S3. it forges：Heating temperature is 1180 ~ 1200 DEG C when forging；
S4. it rolls：Heating temperature is 1160 ~ 1180 DEG C when rolling, the wire rod of rolling 6.5 ~ 8.5 ㎜ of φ；
S5. it anneals：Wire annealing temperature：1160 ~ 1180 DEG C, soaking time：1 hour, the type of cooling：Hardening；
S6. drawing：Wire rod carries out drawing after hot dip coating and drying, obtains the welding wire of φ 1.65-1.67mm；
S7. it examines：Including its size, tensile strength, surface quality, flaw detection.
4. the production technology of NiCr44Ti welding wire as claimed in claim 3, which is characterized in that the casting in the step S2
It is poured for electrification, and power transmission can be carried out when the vacuum degree in vacuum drying oven is less than 10Pa.
5. the production technology of NiCr44Ti welding wire as claimed in claim 3, which is characterized in that be to adopt in the step S6
Multi-pass gradually drawing is carried out with diamond mould, the wire rod sizing reduction of drawing is in 0.05-0.08mm per pass.
6. the production technology of NiCr44Ti welding wire as claimed in claim 3, which is characterized in that after the step S7 also
Include the steps that playing disk after being straightened wire rod finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810709306.2A CN108907495A (en) | 2018-07-02 | 2018-07-02 | NiCr44Ti welding wire and its production technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810709306.2A CN108907495A (en) | 2018-07-02 | 2018-07-02 | NiCr44Ti welding wire and its production technology |
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| CN108907495A true CN108907495A (en) | 2018-11-30 |
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| CN201810709306.2A Pending CN108907495A (en) | 2018-07-02 | 2018-07-02 | NiCr44Ti welding wire and its production technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110977246A (en) * | 2019-12-31 | 2020-04-10 | 江苏新华合金有限公司 | H00Cr12Ni9Mo2Si welding wire and production process thereof |
| CN110977245A (en) * | 2019-12-31 | 2020-04-10 | 江苏新华合金有限公司 | Nickel-chromium-molybdenum alloy welding wire for ball valve surfacing and process preparation method thereof |
| CN111015019A (en) * | 2019-12-31 | 2020-04-17 | 江苏新华合金有限公司 | 00Cr20Mo16 welding wire and production process thereof |
| CN112605557A (en) * | 2020-12-26 | 2021-04-06 | 江苏新核合金科技有限公司 | HGH1131 welding wire and preparation method thereof |
| CN113798736A (en) * | 2020-06-12 | 2021-12-17 | 江苏立新合金实业总公司 | Preparation method and processing technology of nickel-chromium-titanium alloy welding wire |
| CN113798727A (en) * | 2020-06-12 | 2021-12-17 | 江苏立新合金实业总公司 | High-strength alloy steel welding wire and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110977246A (en) * | 2019-12-31 | 2020-04-10 | 江苏新华合金有限公司 | H00Cr12Ni9Mo2Si welding wire and production process thereof |
| CN110977245A (en) * | 2019-12-31 | 2020-04-10 | 江苏新华合金有限公司 | Nickel-chromium-molybdenum alloy welding wire for ball valve surfacing and process preparation method thereof |
| CN111015019A (en) * | 2019-12-31 | 2020-04-17 | 江苏新华合金有限公司 | 00Cr20Mo16 welding wire and production process thereof |
| CN111015019B (en) * | 2019-12-31 | 2021-11-26 | 江苏新华合金有限公司 | 00Cr20Mo16 welding wire and production process thereof |
| CN110977245B (en) * | 2019-12-31 | 2022-03-04 | 江苏新华合金有限公司 | Process preparation method of nickel-chromium-molybdenum alloy welding wire for ball valve surfacing |
| CN113798736A (en) * | 2020-06-12 | 2021-12-17 | 江苏立新合金实业总公司 | Preparation method and processing technology of nickel-chromium-titanium alloy welding wire |
| CN113798727A (en) * | 2020-06-12 | 2021-12-17 | 江苏立新合金实业总公司 | High-strength alloy steel welding wire and preparation method thereof |
| CN113798736B (en) * | 2020-06-12 | 2023-09-12 | 江苏立新合金实业总公司 | Preparation method of nickel-chromium-titanium alloy welding wire |
| CN112605557A (en) * | 2020-12-26 | 2021-04-06 | 江苏新核合金科技有限公司 | HGH1131 welding wire and preparation method thereof |
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| CB02 | Change of applicant information |
Address after: 225722 Luo West Village, Zhang Guo Town, Xinghua City, Taizhou, Jiangsu Applicant after: Jiangsu Xinhua Alloy Co., Ltd Address before: 225722 Luo West Village, Zhang Guo Town, Xinghua City, Taizhou, Jiangsu Applicant before: Jiangsu Xinhua Alloy Electric Apparatus Co., Ltd. |
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Application publication date: 20181130 |
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| RJ01 | Rejection of invention patent application after publication |