CN105345236B - A kind of control method of submerged-arc welding deposited metal phosphorus content - Google Patents
A kind of control method of submerged-arc welding deposited metal phosphorus content Download PDFInfo
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- CN105345236B CN105345236B CN201510912574.0A CN201510912574A CN105345236B CN 105345236 B CN105345236 B CN 105345236B CN 201510912574 A CN201510912574 A CN 201510912574A CN 105345236 B CN105345236 B CN 105345236B
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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
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
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Abstract
A kind of controlling party of submerged-arc welding deposited metal phosphorus content：Welding condition：Welding current is 800 ~ 900A, and voltage is 29 ~ 30V, and speed of welding is 42 ~ 45cm/min, and weld heat input is in 34 ~ 36J/cm；The solder flux of matching is alkalescent sintered flux；According to PSeam=(2/3PSilk+1/3PAgent）+0.001 (ln0.010/PSilk+ ln0.020/PAgent) to submerged-arc welding deposited metal phosphorus PSeamIt is predicted；According to the submerged-arc welding deposited metal phosphorus P predictedSeamValue, it is determined that specific welding wire containing P and solder flux.The present invention passes through set up calculating formula, can strictly control submerged arc weld P content, and quick, accurate can select the phosphorous welding wire and solder flux matched, and without carrying out experiment apolegamy welding wire and solder flux, and the weld seam P content and experiment results of PREDICTIVE CONTROL are identical.
Description
Technical field
The present invention relates to a kind of buried arc welding method, a kind of controlling party of submerged-arc welding deposited metal phosphorus content is specifically belonged to
Method.
Background technology
Phosphorus in weld seam is one of main harm element.Especially in the weld seam of the welding such as nuclear power structure, high-performance pipeline,
What the content requirement to phosphorus was strict, but in actual welding, want prediction and control to P content in submerged arc weld
System is again highly difficult, and its reason is that the welding wire and solder flux that submerged-arc welding is used are welding material, in welding process, and welding wire and solder flux are molten
Change forms molten bath, and molten pool metal carries out complicated metallurgical reaction, along with a series of de- P processes, main as following various：
2[Fe2P]+5(FeO) → P2O5+ 9 [Fe], P2O5+3(CaO) → (CaO)3·P2O5, P2O5+4(CaO) →
(CaO)4·P2O5。
Particularly with for constantly adapt to high-end product and in new steel grade newly developed, its weld seam phosphorus content require it is strict when,
Current way is to determine whether welding wire and sintered flux meet the requirement of P content by carrying out actual welding experiment.This side
The deficiency of method is to cause the time of apolegamy welding wire and solder flux long, and both waste of materials and hand labors.
P content in weld seam is generally divided into multiple grades, such as P≤0.025%, 0.015%, 0.010%, 0.008%, and it becomes
Change is very trickle, and the P content in more accurate prediction and control weld seam is one and significantly worked.
To solve this problem, the applicant passes through substantial amounts of experiment, it is proposed that (1) when using identical welding wire and solder flux,
Obtain the welding condition of minimum weld seam P content；(2) under this welding condition, i.e., using weld heat input in 34 ~ 36kJ/
Cm and larger electric current, the corresponding relation by studying different wlding P contents and submerged arc weld P content, it is proposed that pass through welding wire
And the P content in solder flux, in the relational expression that the P content in Resistance of Weld Metal is controlled, then the weld seam predicted by relational expression
P content whether meet requirement so that the welding wire and solder flux of P content that need to be matched when quickly determining actual submerged arc welding so that
Guarantee effect is served to obtain high-performance weld seam.
The content of the invention
The invention reside in overcome the shortcomings of prior art exist there is provided a kind of calculating formula by foundation, can predict and bury
Arc weld P content, and quick, accurately selected the welding wire and solder flux of weld seam P content can be met, without carrying out actual welding experiment
Submerged-arc welding deposited metal phosphorus content control method.
Realize the measure of above-mentioned purpose：
A kind of control method of submerged-arc welding deposited metal phosphorus content, its step：
1）Welding condition：Welding current is 800 ~ 900A, and voltage is 29 ~ 30V, and speed of welding is 42 ~ 45cm/min, welding
Heat input is in 34 ~ 36J/cm；The solder flux of matching is alkalescent sintered flux；
It is applied to：P content of the P content in 0.006 ~ 0.015wt%, flux constituent in component of weld wire 0.008 ~
0.03wt%；
2）According to the P content in welding wire and flux constituent, to submerged-arc welding deposited metal phosphorus PSeamIt is predicted, i.e.,
When P content of the P content in component of weld wire in 0.006 ~ 0.015wt%, flux constituent is in 0.008 ~ 0.03wt%
When, submerged-arc welding deposited metal phosphorus is predicted according to following calculating formula：
PSeam=(2/3PSilk+1/3PAgent）+0.001 (ln0.010/PSilk+ ln0.020/PAgent)
In formula：PSeamThe weight percent content of-expression submerged-arc welding deposited metal phosphorus,
PSilkThe weight percent content of phosphorus in-expression welding wire,
PAgentThe weight percent content of phosphorus in-expression solder flux；
3）According to step 2）Middle predicted submerged-arc welding deposited metal phosphorus PSeamValue, it is determined that specific welding wire containing P and solder flux；When
The submerged-arc welding deposited metal phosphorus P predictedSeamWhen value meets the requirements, then welding wire and solder flux used containing P then as actual welding when
Welding wire and solder flux；As the submerged-arc welding deposited metal phosphorus P predictedSeamWhen being worth undesirable, then continue to select, until conforming to
Ask.
It is：Selected solder flux under the conditions of 350 DEG C before use, will toast 1.5 hours.
The calculating formula of the present invention is entered through being verified in laboratory using the welding wire and solder flux of selected different P contents
Row welding, weld seam P content and the experiment results of PREDICTIVE CONTROL are coincide；Further verified in through being tested in engineering welding, it is real
Measured value equally more coincide, and obtains good result.
The present invention compared with prior art, passes through set up calculating formula, can strictly control submerged arc weld P content, again
Can quick, the accurate selected phosphorous welding wire and solder flux matched, without carrying out experiment apolegamy welding wire and solder flux, and PREDICTIVE CONTROL
Weld seam P content coincide with experiment results；Further verify, measured value equally coincide, obtain in through being tested in engineering welding
Good result.
Embodiment
The present invention is described in detail below：
Embodiment 1（Experiment welding for construction(al)steel, it requires PSeamContent is less than 0.018 wt%）
A kind of control method of submerged-arc welding deposited metal phosphorus content, its step：
1）Welding condition：Welding current is 840A, and voltage is 29V, and speed of welding is 43cm/min, weld heat input for ~
34J/cm；The solder flux of matching is alkalescent sintered flux SJ105；
P in component of weld wireSilkContent is the P in 0.01wt%, flux constituentAgentContent is 0.027wt%；
2）According to the P content in welding wire and flux constituent, to submerged-arc welding deposited metal phosphorus PSeamIt is predicted, i.e.,
By the P in component of weld wireSilkP in content 0.01wt%, flux constituentAgentContent is in 0.027wt%, according to below equation
Calculate the predicted value P of submerged-arc welding deposited metal phosphorusSeam：
PSeam=(2/3PSilk+1/3PAgent）+0.001 (ln0.010/PSilk+ ln0.020/PAgent)=0.0162wt%
3）According to step 2）Middle predicted submerged-arc welding deposited metal phosphorus PSeamValue, its value determines choosing due to meeting the requirements
With the welding wire for being 0.01wt% containing P, actual welding checking is carried out for 0.027wt% solder flux containing P, the weld seam P of its actual welding contains
Measure as 0.016%wt%；It can be seen that predicted value PSeamIt is fine with actual tests welding result uniformity, it was demonstrated that technology of the invention
Scheme is effective.
It should be noted that selected solder flux has toasted 1.5 hours before weldering under the conditions of 350 DEG C.
Embodiment 2（Experiment welding for petroleum pipe steel, it requires PAgentContent is less than 0.012 wt%）
A kind of control method of submerged-arc welding deposited metal phosphorus content, its step：
1）Welding condition：Welding current is 880A, and voltage is 30V, and speed of welding is 45cm/min, weld heat input for ~
35J/cm；The solder flux of matching is alkalescent sintered flux SJ105；
P in component of weld wireSilkContent is the P in 0.01wt%, flux constituentAgentContent is 0.018wt%；
2）According to the P content in welding wire and flux constituent, to submerged-arc welding deposited metal phosphorus PSeamIt is predicted, i.e.,
By the P in component of weld wireSilkP in content 0.01wt%, flux constituentAgentContent is in 0.018wt%, according to below equation
Calculate the predicted value P of submerged-arc welding deposited metal phosphorusSeam：
PSeam=(2/3PSilk+1/3PAgent）+0.001 (ln0.010/PSilk+ ln0.020/PAgent)=0.013wt%
3）According to step 2）Middle predicted submerged-arc welding deposited metal phosphorus PSeamValue, its value is due to undesirable, actual weldering
Seam P content is 0.0125wt%, therefore need to reselect wlding.Again it is 0.013wt% containing P from containing the welding wire that P is 0.01wt%
Solder flux, it is 0.0119% to calculate weldering P content, carries out actual welding checking, and the weld seam P content of its actual welding is 0.0117
wt%；It can be seen that predicted value PSeamIt is with actual tests welding result uniformity fine, it was demonstrated that technical scheme row has
Effect.
It should be noted that selected solder flux has toasted 1.5 hours before weldering under the conditions of 350 DEG C.
Embodiment 3（Experiment welding for midium-carbon steel, it requires PAgentContent is less than 0.01 wt%）
A kind of control method of submerged-arc welding deposited metal phosphorus content, its step：
1）Welding condition：Welding current is 820A, and voltage is 30V, and speed of welding is 44cm/min, weld heat input for ~
34J/cm；The solder flux of matching is alkalescent sintered flux SJ101；
P in component of weld wireSilkContent is the P in 0.006wt%, flux constituentAgentContent is 0.008wt%；
2）According to the P content in welding wire and flux constituent, to submerged-arc welding deposited metal phosphorus PSeamIt is predicted, i.e.,
By the P in component of weld wireSilkP in content 0.006wt%, flux constituentAgentContent is in 0.008wt%, according to following public affairs
Formula calculates the predicted value P of submerged-arc welding deposited metal phosphorusSeam：
PSeam=(2/3PSilk+1/3PAgent）+0.001 (ln0.010/PSilk+ ln0.020/PAgent)=0.008wt%
3）According to step 2）Middle predicted submerged-arc welding deposited metal phosphorus PSeamValue, its value determines choosing due to meeting the requirements
With the welding wire for being 0.006wt% containing P, actual welding checking is carried out for 0.008wt% solder flux containing P, the weld seam P of its actual welding contains
Measure as 0.0083%wt%；It can be seen that predicted value PSeamIt is fine with actual tests welding result uniformity, it was demonstrated that technology of the invention
Scheme is effective.
It should be noted that selected solder flux has toasted 1.5 hours before weldering under the conditions of 350 DEG C.
Embodiment 4（Experiment welding for midium-carbon steel, it requires PAgentContent is less than 0.01 wt%）
A kind of control method of submerged-arc welding deposited metal phosphorus content, its step：
1）Welding condition：Welding current is 820A, and voltage is 30V, and speed of welding is 44cm/min, weld heat input for ~
34J/cm；The solder flux of matching is alkalescent sintered flux SJ101；
P in component of weld wireSilkContent is the P in 0.006wt%, flux constituentAgentContent is 0.015wt%；
2）According to the P content in welding wire and flux constituent, to submerged-arc welding deposited metal phosphorus PSeamIt is predicted, i.e.,
By the P in component of weld wireSilkP in content 0.006wt%, flux constituentAgentContent is in 0.015wt%, according to following public affairs
Formula calculates the predicted value P of submerged-arc welding deposited metal phosphorusSeam：
PSeam=(2/3PSilk+1/3PAgent）+0.001 (ln0.010/PSilk+ ln0.020/PAgent)=0.010wt%
3）According to step 2）Middle predicted submerged-arc welding deposited metal phosphorus PSeamValue, its value determines choosing due to meeting the requirements
With the welding wire for being 0.006wt% containing P, actual welding checking is carried out for 0.015wt% solder flux containing P, the weld seam P of its actual welding contains
Measure as 0.0097%wt%；It can be seen that predicted value PSeamIt is fine with actual tests welding result uniformity, it was demonstrated that technology of the invention
Scheme is effective.
It should be noted that selected solder flux has toasted 1.5 hours before weldering under the conditions of 350 DEG C.
Embodiment 5（Experiment welding for wheel steel, it requires PAgentContent is less than 0.015 wt%）
A kind of control method of submerged-arc welding deposited metal phosphorus content, its step：
1）Welding condition：Welding current is 820A, and voltage is 30V, and speed of welding is 44cm/min, weld heat input for ~
34J/cm；The solder flux of matching is alkalescent sintered flux SJ101；
P in component of weld wireSilkContent is the P in 0.012wt%, flux constituentAgentContent is 0.018wt%；
2）According to the P content in welding wire and flux constituent, to submerged-arc welding deposited metal phosphorus PSeamIt is predicted, i.e.,
By the P in component of weld wireSilkP in content 0.012wt%, flux constituentAgentContent is in 0.018wt%, according to following public affairs
Formula calculates the predicted value P of submerged-arc welding deposited metal phosphorusSeam：
PSeam=(2/3PSilk+1/3PAgent）+0.001 (ln0.010/PSilk+ ln0.020/PAgent)=0.0146wt%
3）According to step 2）Middle predicted submerged-arc welding deposited metal phosphorus PSeamValue, its value determines choosing due to meeting the requirements
With the welding wire for being 0.012wt% containing P, actual welding checking is carried out for 0.018wt% solder flux containing P, the weld seam P of its actual welding contains
Measure as 0.0149%wt%；It can be seen that predicted value PSeamIt is fine with actual tests welding result uniformity, it was demonstrated that technology of the invention
Scheme is effective.
It should be noted that selected solder flux has toasted 1.5 hours before weldering under the conditions of 350 DEG C.
Embodiment 6（Experiment welding for bridge steel, it requires PAgentContent is less than 0.012 wt%）
A kind of control method of submerged-arc welding deposited metal phosphorus content, its step：
1）Welding condition：Welding current is 900A, and voltage is 30V, and speed of welding is 45cm/min, weld heat input for ~
36J/cm；The solder flux of matching is alkalescent sintered flux SJ101；
P in component of weld wireSilkContent is the P in 0.011wt%, flux constituentAgentContent is 0.010wt%；
2）According to the P content in welding wire and flux constituent, to submerged-arc welding deposited metal phosphorus PSeamIt is predicted, i.e.,
By the P in component of weld wireSilkP in content 0.011wt%, flux constituentAgentContent is in 0.010wt%, according to following public affairs
Formula calculates the predicted value P of submerged-arc welding deposited metal phosphorusSeam：
PSeam=(2/3PSilk+1/3PAgent）+0.001 (ln0.010/PSilk+ ln0.020/PAgent)=0.0117wt%
3）According to step 2）Middle predicted submerged-arc welding deposited metal phosphorus PSeamValue, its value determines choosing due to meeting the requirements
With the welding wire for being 0.011wt% containing P, actual welding checking is carried out for 0.010wt% solder flux containing P, the weld seam P of its actual welding contains
Measure as 0.0115%wt%；It can be seen that predicted value PSeamIt is fine with actual tests welding result uniformity, it was demonstrated that technology of the invention
Scheme is effective.
It should be noted that selected solder flux has toasted 1.5 hours before weldering under the conditions of 350 DEG C.
Embodiment 7（Experiment welding for bridge steel, it requires PAgentContent is less than 0.012 wt%）
A kind of control method of submerged-arc welding deposited metal phosphorus content, its step：
1）Welding condition：Welding current is 820A, and voltage is 30V, and speed of welding is 43cm/min, weld heat input for ~
34J/cm；The solder flux of matching is alkalescent sintered flux SJ101；
P in component of weld wireSilkContent is the P in 0.01wt%, flux constituentAgentContent is 0.011wt%；
2）According to the P content in welding wire and flux constituent, to submerged-arc welding deposited metal phosphorus PSeamIt is predicted, i.e.,
By the P in component of weld wireSilkP in content 0.010wt%, flux constituentAgentContent is in 0.011wt%, according to following public affairs
Formula calculates the predicted value P of submerged-arc welding deposited metal phosphorusSeam：
PSeam=(2/3PSilk+1/3PAgent）+0.001 (ln0.010/PSilk+ ln0.020/PAgent)=0.0114wt%
3）According to step 2）Middle predicted submerged-arc welding deposited metal phosphorus PSeamValue, its value determines choosing due to meeting the requirements
With the welding wire for being 0.010wt% containing P, actual welding checking is carried out for 0.010wt% solder flux containing P, the weld seam P of its actual welding contains
Measure as 0.0114%wt%；It can be seen that predicted value PSeamIt is fine with actual tests welding result uniformity, it was demonstrated that technology of the invention
Scheme is effective.
It should be noted that selected solder flux has toasted 1.5 hours before weldering under the conditions of 350 DEG C.
Embodiment 8（Experiment welding for engineering machinery steel, it requires PAgentContent is less than 0.018 wt%）
A kind of control method of submerged-arc welding deposited metal phosphorus content, its step：
1）Welding condition：Welding current is 900A, and voltage is 30V, and speed of welding is 45cm/min, weld heat input for ~
36J/cm；The solder flux of matching is alkalescent sintered flux SJ101；
P in component of weld wireSilkContent is the P in 0.015wt%, flux constituentAgentContent is 0.019wt%；
2）According to the P content in welding wire and flux constituent, to submerged-arc welding deposited metal phosphorus PSeamIt is predicted, i.e.,
By the P in component of weld wireSilkP in content 0.015wt%, flux constituentAgentContent is in 0.019wt%, according to following public affairs
Formula calculates the predicted value P of submerged-arc welding deposited metal phosphorusSeam：
PSeam=(2/3PSilk+1/3PAgent）+0.001 (ln0.010/PSilk+ ln0.020/PAgent)=0.0168wt%
3）According to step 2）Middle predicted submerged-arc welding deposited metal phosphorus PSeamValue, its value determines choosing due to meeting the requirements
With the welding wire for being 0.015wt% containing P, actual welding checking is carried out for 0.019wt% solder flux containing P, the weld seam P of its actual welding contains
Measure as 0.0171%wt%；It can be seen that predicted value PSeamIt is fine with actual tests welding result uniformity, it was demonstrated that technology of the invention
Scheme is effective.
It should be noted that selected solder flux has toasted 1.5 hours before weldering under the conditions of 350 DEG C.
Embodiment 9（Experiment welding for engineering machinery steel, it requires PAgentContent is less than 0.018 wt%）
A kind of control method of submerged-arc welding deposited metal phosphorus content, its step：
1）Welding condition：Welding current is 900A, and voltage is 30V, and speed of welding is 45cm/min, weld heat input for ~
36J/cm；The solder flux of matching is alkalescent sintered flux SJ101；
P in component of weld wireSilkContent is the P in 0.01wt%, flux constituentAgentContent is 0.030wt%；
2）According to the P content in welding wire and flux constituent, to submerged-arc welding deposited metal phosphorus PSeamIt is predicted, i.e.,
By the P in component of weld wireSilkP in content 0.01wt%, flux constituentAgentContent is in 0.030wt%, according to below equation
Calculate the predicted value P of submerged-arc welding deposited metal phosphorusSeam：
PSeam=(2/3PSilk+1/3PAgent）+0.001 (ln0.010/PSilk+ ln0.020/PAgent)=0.017wt%
3）According to step 2）Middle predicted submerged-arc welding deposited metal phosphorus PSeamValue, its value determines choosing due to meeting the requirements
With the welding wire for being 0.01wt% containing P, actual welding checking is carried out for 0.030wt% solder flux containing P, the weld seam P of its actual welding contains
Measure as 0.0171%wt%；It can be seen that predicted value PSeamIt is fine with actual tests welding result uniformity, it was demonstrated that technology of the invention
Scheme is effective.
It should be noted that selected solder flux has toasted 1.5 hours before weldering under the conditions of 350 DEG C.
Present embodiment is only most preferably to enumerate, not to the restricted implementation of technical solution of the present invention.
Claims (2)
1. a kind of control method of submerged-arc welding deposited metal phosphorus content, its step：
1）Welding condition：Welding current is 800 ~ 900A, and voltage is 29 ~ 30V, and speed of welding is 42 ~ 45cm/min, sealing wire energy
Amount is in 35J/cm；The solder flux of matching is alkalescent sintered flux；
It is applied to：P content of the P content in 0.006 ~ 0.015wt%, flux constituent in component of weld wire 0.008 ~
0.03wt%；
2）According to the P content in welding wire and flux constituent, to submerged-arc welding deposited metal phosphorus PSeamIt is predicted, i.e.,
When P content of the P content in component of weld wire in 0.006 ~ 0.015wt%, flux constituent is in 0.008 ~ 0.03wt%, bury
Arc-welding deposited metal phosphorus is predicted according to following calculating formula：
PSeam=(2/3PSilk+1/3PAgent）+0.001 (ln0.010/PSilk+ ln0.020/PAgent)
In formula：PSeamThe weight percent content of-expression submerged-arc welding deposited metal phosphorus,
PSilkThe weight percent content of phosphorus in-expression welding wire,
PAgentThe weight percent content of phosphorus in-expression solder flux；
3）According to step 2）Middle predicted submerged-arc welding deposited metal phosphorus PSeamValue, it is determined that the welding wire and solder flux of specific P content；Work as institute
The submerged-arc welding deposited metal phosphorus P of predictionSeamWhen value meets the requirements, then when the welding wire and solder flux of P content used can be as actual weldings
Welding wire and solder flux；As the submerged-arc welding deposited metal phosphorus P predictedSeamWhen being worth undesirable, then continue to select, until conforming to
Ask.
2. a kind of control method of submerged-arc welding deposited metal phosphorus content as claimed in claim 1, it is characterised in that：Selected
Solder flux under the conditions of 350 DEG C before use, will toast 1.5 hours.
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| JPS594993A (en) * | 1982-07-01 | 1984-01-11 | Nippon Kokan Kk <Nkk> | Welding method of tempered type steel pipe |
| JP4879696B2 (en) * | 2006-10-13 | 2012-02-22 | 新日本製鐵株式会社 | High yield strength, high toughness, flux-cored wire for gas shielded arc welding |
| CN101559541B (en) * | 2009-05-19 | 2011-06-08 | 武汉钢铁(集团)公司 | Test method and device for weld seam alloying in gas shielded welding |
| CN103323572A (en) * | 2013-05-27 | 2013-09-25 | 武汉钢铁(集团)公司 | A test method for studying components and properties of submerged-arc welding seams |
| JP6191393B2 (en) * | 2013-10-28 | 2017-09-06 | 新日鐵住金株式会社 | Submerged arc welding metal with excellent cryogenic toughness, and wire and flux for forming submerged arc welding |
| JP5961296B2 (en) * | 2015-03-20 | 2016-08-02 | 日本冶金工業株式会社 | Method of overlaying stainless steel for welding |
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Effective date of registration: 20170711 Address after: 430083 Qingshan District, Hubei, Wuhan factory before the door No. 2 Applicant after: Wuhan iron and Steel Company Limited Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang Applicant before: Wuhan Iron & Steel (Group) Corp. |
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