CN104625352B - Abrasion resistant steel and low-carbon steel dissimilar metal consumable electrode gas shielded welding technology - Google Patents
Abrasion resistant steel and low-carbon steel dissimilar metal consumable electrode gas shielded welding technology Download PDFInfo
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- CN104625352B CN104625352B CN201510002477.8A CN201510002477A CN104625352B CN 104625352 B CN104625352 B CN 104625352B CN 201510002477 A CN201510002477 A CN 201510002477A CN 104625352 B CN104625352 B CN 104625352B
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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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
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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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
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Abstract
The invention relates to an abrasion resistant steel and low-carbon steel dissimilar metal consumable electrode gas shielded welding technology and belongs to the technology field of dissimilar metal welding technologies. According to the technology, by the adjustment and controlling to welding positions, welding parameters, interlayer-temperature and the like, when the high-carbon and high-manganese abrasion resistant steel is welded with the low-carbon steel dissimilar metal, the purposes of preheating before welding and slow cooling after welding are achieved, so that no cracks occur in welding seams after welding is completed, the welding seams do not crack after being heated again through a heating furnace, and it is guaranteed that rolling goes on smoothly. Compared with a traditional abrasion resistant steel and low-carbon steel dissimilar metal welding technology, the abrasion resistant steel and the low-carbon steel dissimilar metal consumable electrode gas shielded welding technology has no special requirements for raw materials and equipment, so that the manufacturing cost is lowered.
Description
Technical field
The invention belongs to different-metal material welding Technology field is and in particular to one kind is with regard to abrasion-resistant stee and low-carbon steel dissimilar metal
Metal welding procedure.
Background technology
Abrasion-resistant stee is generally high-carbon（C）, Gao Meng（Mn）Steel alloy.Abrasion-resistant stee be generally used for processing and fabricating abrasion-proof backing block and
Sieve plate, production and the conveying pipe such as conveying cement mortar, ore pulp.The wearing composite material being produced with abrasion-resistant stee using mild steel, no
Only there is the performance of abrasion-resistant stee, also reduce the consumption of abrasion-resistant stee, thus decreasing manganese（Mn）Deng the consumption of alloying element, so
Wearing composite material is just progressively replacing abrasion-resistant stee in the application of every field.
The production process of wearing composite material is：Abrasion-resistant stee and mild steel two boards, are combined into wear-resisting by welding manner
Composite billet, i.e. the assembly process of wearing composite material, as shown in Figure 1.Wear-resisting composite billet becomes hot rolling wear-resisting multiple through hot rolling
Condensation material coiled sheet, and wearing composite material is obtained by subsequent heat treatment technique.The production of wearing composite material must weld system
Base, abrasion-resistant stee with the dissimilar metal prior welding mode of mild steel is：Because of abrasion-resistant stee carbon containing（C）With containing manganese（Mn）Height, must before weldering
Must preheating, postheating and being welded using low-hydrogen electrode, to improve weldquality poor.Traditional welding procedure tedious process, one-tenth
This height, is not suitable for the welding of abrasion-resistant stee and low-carbon steel dissimilar metal metal.
Patent of the present invention is aiming at this Welding Problems, there is provided a kind of molten with low-carbon steel dissimilar metal metal with regard to abrasion-resistant stee
Change pole gas shielded arc welding welding procedure.
Content of the invention
For solving high-carbon, the abrasion-resistant stee of Gao Meng and low-carbon steel dissimilar metal metal welding procedure during the welding of wearing composite material assembly
Technical problem, the present invention provides a kind of high-carbon, the abrasion-resistant stee of Gao Meng and low-carbon steel dissimilar metal metal molten pole gas shielded welding work
Skill, by the adjustment of welding position, welding parameter, interlayer temperature etc. and control, reaching high-carbon, the abrasion-resistant stee of Gao Meng and low-carbon (LC)
During the different-metal material welding of steel, weld preheating, the purpose of postheating, make weld seam flawless after the completion of welding, more heated stove
After heating, weld seam does not ftracture it is ensured that roll is smoothed out.
The technical solution used in the present invention is as follows：
A kind of abrasion-resistant stee and low-carbon steel dissimilar metal metal molten pole gas shielded arc welding welding procedure, comprise the steps：
Step（1）, select drying, oil-free, rustless ordinary carbon steel welding wire, and keep weldering with welding region before use
Silk is dried, oil-free and rustless；
Step（2）, it is 30 ± 10V in weldingvoltage, welding current is 230 ± 70A, speed of welding is 0.2 ~ 1.5m/
Min, groove depth is more than or equal to 10mm, and bevel angle is more than or equal to 90 °, CO2Gas flow is 5 ~ 18L/min, interlayer
Temperature be 80 ± 40 DEG C under the conditions of, full weld welding is carried out to abrasion-resistant stee and mild steel groove, and weld when connection be direct current just
Connect；
Step（3）, during the Ith road welding, carry out the first weldering from mild steel side, after the completion of welding, quick cleaning abrasion-resistant stee side
Splash and the oxide skin of commissure and welding slag, carry out the second weldering between the first weldering and abrasion-resistant stee afterwards, after the completion of welding
Oxide skin at trimming and welding slag, complete the Ith road welding；
Step（4）, after the completion of the Ith road welding, carry out the first weldering of the IIth road welding from mild steel side, in the base of the first weldering
Carry out the second weldering on plinth, after the completion of welding, the quickly splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and welding slag, afterwards
Carry out the 3rd weldering between the second weldering and abrasion-resistant stee, the oxide skin at trimming after the completion of welding and welding slag, complete the IIth road
Welding；
Step（5）, after the completion of the IIth road welding, carry out the first weldering of the IIIth road welding from mild steel side, in the first weldering
On the basis of carry out second, third weldering, after the completion of welding, the quick splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and weldering
Slag, carries out the 4th weldering afterwards between the 3rd weldering and abrasion-resistant stee, and the oxide skin at trimming after the completion of welding and welding slag complete
IIIth road welding；
So, repeat step（5）Complete the IV, the V ... N road welding, the first weldering of every welding together is all from mild steel side
Weld, and constantly build weldering, before carrying out last weldering, the quickly cleaning splash of abrasion-resistant stee side and the oxygen of commissure from bottom to top
Change skin and welding slag, carry out last weldering, the oxygen at trimming after the completion of welding afterwards between weldering second from the bottom and abrasion-resistant stee
Change skin and welding slag, welding process is continuously uninterruptedly to weld, until abrasion-resistant stee and mild steel groove full weld complete.
Described welding wire is commercial ordinary carbon steel welding wire, diameter ＜ 3.0mm.
Further, the preferred welding wire trade mark is CHW-50C6, a diameter of 1.2mm.
Further, preferred weld length is 300 ± 200mm.
It is further preferred that described abrasion-resistant stee and low-carbon steel dissimilar metal metal molten pole gas shielded arc welding welding procedure,
Comprise the steps：
Step（1）, select drying, oil-free, rustless ordinary carbon steel welding wire, and keep weldering with welding region before use
Silk is dried, oil-free and rustless；
Step（2）, it is 20V in weldingvoltage, welding current is 160A, speed of welding is 0.2m/min, groove depth is
10mm, bevel angle is 90 °, CO2Gas flow is 5L/min, under the conditions of interlayer temperature is 40 DEG C, to abrasion-resistant stee and mild steel
Groove carries out full weld welding, and when welding, connection is straight polarity direct current；
Step（3）, during the Ith road welding, carry out the first weldering from mild steel side, after the completion of welding, quick cleaning abrasion-resistant stee side
Splash and the oxide skin of commissure and welding slag, carry out the second weldering between the first weldering and abrasion-resistant stee afterwards, after the completion of welding
Oxide skin at trimming and welding slag, complete the Ith road welding；
Step（4）, after the completion of the Ith road welding, carry out the first weldering of the IIth road welding from mild steel side, in the base of the first weldering
Carry out the second weldering on plinth, after the completion of welding, the quickly splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and welding slag, afterwards
Carry out the 3rd weldering between the second weldering and abrasion-resistant stee, the oxide skin at trimming after the completion of welding and welding slag, complete the IIth road
Welding；
Step（5）, after the completion of the IIth road welding, carry out the first weldering of the IIIth road welding from mild steel side, in the first weldering
On the basis of carry out second, third weldering, after the completion of welding, the quick splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and weldering
Slag, carries out the 4th weldering afterwards between the 3rd weldering and abrasion-resistant stee, and the oxide skin at trimming after the completion of welding and welding slag complete
IIIth road welding；
So, repeat step（5）Complete the IV, the V ... N road welding, the first weldering of every welding together is all from mild steel side
Weld, and constantly build weldering, before carrying out last weldering, the quickly cleaning splash of abrasion-resistant stee side and the oxygen of commissure from bottom to top
Change skin and welding slag, carry out last weldering, the oxygen at trimming after the completion of welding afterwards between weldering second from the bottom and abrasion-resistant stee
Change skin and welding slag, welding process is continuously uninterruptedly to weld, until abrasion-resistant stee and mild steel groove full weld complete.
It is further preferred that described abrasion-resistant stee and low-carbon steel dissimilar metal metal molten pole gas shielded arc welding welding procedure,
Comprise the steps：
Step（1）, select drying, oil-free, rustless ordinary carbon steel welding wire, and keep weldering with welding region before use
Silk is dried, oil-free and rustless；
Step（2）, it is 40V in weldingvoltage, welding current is 300A, speed of welding is 1.5m/min, groove depth is
15mm, bevel angle is 110 °, CO2Gas flow is 18L/min, under the conditions of interlayer temperature is 120 DEG C, to abrasion-resistant stee and low-carbon (LC)
Steel groove carries out full weld welding, and when welding, connection is straight polarity direct current；
Step（3）, during the Ith road welding, carry out the first weldering from mild steel side, after the completion of welding, quick cleaning abrasion-resistant stee side
Splash and the oxide skin of commissure and welding slag, carry out the second weldering between the first weldering and abrasion-resistant stee afterwards, after the completion of welding
Oxide skin at trimming and welding slag, complete the Ith road welding；
Step（4）, after the completion of the Ith road welding, carry out the first weldering of the IIth road welding from mild steel side, in the base of the first weldering
Carry out the second weldering on plinth, after the completion of welding, the quickly splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and welding slag, afterwards
Carry out the 3rd weldering between the second weldering and abrasion-resistant stee, the oxide skin at trimming after the completion of welding and welding slag, complete the IIth road
Welding；
Step（5）, after the completion of the IIth road welding, carry out the first weldering of the IIIth road welding from mild steel side, in the first weldering
On the basis of carry out second, third weldering, after the completion of welding, the quick splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and weldering
Slag, carries out the 4th weldering afterwards between the 3rd weldering and abrasion-resistant stee, and the oxide skin at trimming after the completion of welding and welding slag complete
IIIth road welding；
So, repeat step（5）Complete the IV, the V ... N road welding, the first weldering of every welding together is all from mild steel side
Weld, and constantly build weldering, before carrying out last weldering, the quickly cleaning splash of abrasion-resistant stee side and the oxygen of commissure from bottom to top
Change skin and welding slag, carry out last weldering, the oxygen at trimming after the completion of welding afterwards between weldering second from the bottom and abrasion-resistant stee
Change skin and welding slag, welding process is continuously uninterruptedly to weld, until abrasion-resistant stee and mild steel groove full weld complete.
It is further preferred that described abrasion-resistant stee and low-carbon steel dissimilar metal metal molten pole gas shielded arc welding welding procedure,
Comprise the steps：
Step（1）, select drying, oil-free, rustless ordinary carbon steel welding wire, and keep weldering with welding region before use
Silk is dried, oil-free and rustless；
Step（2）, it is 30V in weldingvoltage, welding current is 230A, speed of welding is 1m/min, groove depth is more than
Equal to 10mm, bevel angle is 140 °, CO2Gas flow is 10L/min, under conditions of interlayer temperature is 80 DEG C, to abrasion-resistant stee
When carrying out full weld welding with mild steel groove, and welding, connection is straight polarity direct current；
Step（3）, during the Ith road welding, carry out the first weldering from mild steel side, after the completion of welding, quick cleaning abrasion-resistant stee side
Splash and the oxide skin of commissure and welding slag, carry out the second weldering between the first weldering and abrasion-resistant stee afterwards, after the completion of welding
Oxide skin at trimming and welding slag, complete the Ith road welding；
Step（4）, after the completion of the Ith road welding, carry out the first weldering of the IIth road welding from mild steel side, in the base of the first weldering
Carry out the second weldering on plinth, after the completion of welding, the quickly splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and welding slag, afterwards
Carry out the 3rd weldering between the second weldering and abrasion-resistant stee, the oxide skin at trimming after the completion of welding and welding slag, complete the IIth road
Welding；
Step（5）, after the completion of the IIth road welding, carry out the first weldering of the IIIth road welding from mild steel side, in the first weldering
On the basis of carry out second, third weldering, after the completion of welding, the quick splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and weldering
Slag, carries out the 4th weldering afterwards between the 3rd weldering and abrasion-resistant stee, and the oxide skin at trimming after the completion of welding and welding slag complete
IIIth road welding；
So, repeat step（5）Complete the IV, the V ... N road welding, the first weldering of every welding together is all from mild steel side
Weld, and constantly build weldering, before carrying out last weldering, the quickly cleaning splash of abrasion-resistant stee side and the oxygen of commissure from bottom to top
Change skin and welding slag, carry out last weldering, the oxygen at trimming after the completion of welding afterwards between weldering second from the bottom and abrasion-resistant stee
Change skin and welding slag, welding process is continuously uninterruptedly to weld, until abrasion-resistant stee and mild steel groove full weld complete.
Compared with prior art, its advantage is the present invention：
Using technical solution of the present invention it is ensured that abrasion-resistant stee is welded with low-carbon steel dissimilar metal metal, weld seam flawless, weld seam are strong
Degree is high, that is, ensure that abrasion-resistant stee and low carbon steel weld do not ftracture it is ensured that wearing composite material under heating and as-rolled condition
Normal production；And with respect to traditional abrasion-resistant stee and low-carbon steel dissimilar metal metal welding procedure, raw material and equipment is no significantly special will
Ask, thus reducing production cost.
Brief description
Fig. 1 is wear-resisting composite billet structural representation；
Fig. 2 is that abrasion-resistant stee of the present invention welds schematic diagram with mild steel；
1 abrasion-resistant stee, 2 mild steel, 3 weld seams, 4 welding guns, 5 welding wires, the second weldering of 6 the Ith road welding, 7
3rd weldering of the IIth road welding, the 4th weldering of 8 the IIIth road welding, the 5th weldering of 9 the IVth road welding, 10 the Ith road welding
First weldering, 11 the IIth roads welding first weldering, 12 the IIIth roads welding first weldering, 13 the IVth roads welding first
Weldering.
Specific embodiment
With reference to embodiment, the present invention is described in further detail.
It will be understood to those of skill in the art that the following example is merely to illustrate the present invention, and should not be regarded as limiting this
Bright scope.Unreceipted particular technique or condition person in embodiment, according to the technology described by document in the art or condition
Or carry out according to product description.Agents useful for same or the unreceipted production firm person of instrument, are and can pass through what purchase obtain
Conventional products.
Application example：By the technology of the present invention, successfully roll out batch of wearing composite material plate（Volume）.
Raw material：Abrasion-resistant stee is 65Mn, and chemical composition is as shown in table 1；Mild steel is Q235, and chemical composition is as shown in table 2；Weldering
The silk trade mark is CHW-50C6, a diameter of Φ 1.2mm, and welding wire chemical composition is as shown in table 3.
Embodiment 1
A kind of abrasion-resistant stee and low-carbon steel dissimilar metal metal molten pole gas shielded arc welding welding procedure, comprise the steps：
Step（1）, select welding wire drying, oil-free, rustless straight carbon steel welding wire as welding wire, welding wire uses front and weld zone
To be dried in domain, oil-free and rustless, reach the effect of dehydrogenation, the described welding wire trade mark is CHW-50C6, a diameter of
1.2mm；
Step（2）, during welding, connection is straight polarity direct current, and playing butt-welding fitting has heat effect；It is 20V in weldingvoltage,
Welding current is 160A, and speed of welding is 0.2m/min, and groove depth is 10mm, and bevel angle is 90 °, CO2Gas flow is
5L/min, under the conditions of interlayer temperature is 40 DEG C, carries out full weld to above-mentioned abrasion-resistant stee and mild steel groove；
Step（3）, during the Ith road welding, carry out the first weldering 10 from mild steel 2 side, after the completion of welding, quickly clear up abrasion-resistant stee
The oxide skin of the splash of side and commissure and welding slag, carry out the second weldering 6, welding afterwards between the first weldering 10 and abrasion-resistant stee 1
After the completion of oxide skin at trimming and welding slag, complete the Ith road welding；
Step（4）, after the completion of the Ith road welding, carry out the first weldering 11 of the IIth road welding from mild steel 2 side, in the first weldering
Carry out the second weldering on the basis of 11, after the completion of welding, the quickly splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and weldering
Slag, carries out the 3rd weldering 7, the oxide skin at trimming after the completion of welding and welding slag afterwards between the second weldering and abrasion-resistant stee 1, complete
Become the IIth road welding；
Step（5）, after the completion of the IIth road welding, carry out the first weldering 12 of the IIIth road welding from mild steel 2 side, in the first weldering
Carry out second, third weldering on the basis of 12, after the completion of welding, the quickly cleaning splash of abrasion-resistant stee side and the oxide skin of commissure
And welding slag, carry out the 4th weldering 8, the oxide skin at trimming after the completion of welding and weldering afterwards between the 3rd weldering and abrasion-resistant stee 1
Slag, completes the IIIth road welding；
Step（6）, after the completion of the IIIth road welding, carry out the first weldering 13 of the IVth road welding from mild steel 2 side, in the first weldering
Carry out on the basis of 13 second, third, the 4th weldering, after the completion of welding, the splash of quick cleaning abrasion-resistant stee side and commissure
Oxide skin and welding slag, carry out the 5th weldering 9, the oxidation at trimming after the completion of welding afterwards between the 4th weldering and abrasion-resistant stee 1
Skin and welding slag, complete the IVth road welding；
So, repeat step（6）Complete the Vth road welding, the first of every welding together welds all from the weldering of mild steel 2 side, and
Constantly build weldering from bottom to top, before carrying out last weldering, the quick splash of cleaning abrasion-resistant stee 1 side and the oxide skin of commissure and
Welding slag, afterwards second from the bottom weldering and abrasion-resistant stee 1 between carry out last weldering, the oxide skin at trimming after the completion of welding and
Welding slag, welding process is continuously uninterruptedly to weld, until abrasion-resistant stee and mild steel groove full weld complete.As shown in Figure 2.
The present embodiment weld length is 100mm.Weld in heating, the operation of rolling using after the completion of the welding of the present embodiment method
Seam flawless, cracking situation, and successfully it has been rolled into wear-resisting Combined roll.
Embodiment 2
A kind of abrasion-resistant stee and low-carbon steel dissimilar metal metal molten pole gas shielded arc welding welding procedure, comprise the steps：
Step（1）, select welding wire drying, oil-free, rustless straight carbon steel welding wire as welding wire, welding wire uses front and weld zone
To be dried in domain, oil-free and rustless, reach the effect of dehydrogenation, the described welding wire trade mark is CHW-50C6, a diameter of
1.2mm；
Step（2）, during welding, connection is straight polarity direct current, and playing butt-welding fitting has heat effect；It is 40V in weldingvoltage,
Welding current is 300A, and speed of welding is 1.5m/min, and groove depth is 15mm, and bevel angle is 110 °, CO2Gas flow is
18L/min, under the conditions of interlayer temperature is 120 DEG C, carries out full weld to above-mentioned abrasion-resistant stee and mild steel groove；
Step（3）, during the Ith road welding, carry out the first weldering 10 from mild steel 2 side, after the completion of welding, quickly clear up abrasion-resistant stee
The oxide skin of the splash of side and commissure and welding slag, carry out the second weldering 6, welding afterwards between the first weldering 10 and abrasion-resistant stee 1
After the completion of oxide skin at trimming and welding slag, complete the Ith road welding；
Step（4）, after the completion of the Ith road welding, carry out the first weldering 11 of the IIth road welding from mild steel 2 side, in the first weldering
Carry out the second weldering on the basis of 11, after the completion of welding, the quickly splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and weldering
Slag, carries out the 3rd weldering 7, the oxide skin at trimming after the completion of welding and welding slag afterwards between the second weldering and abrasion-resistant stee 1, complete
Become the IIth road welding；
Step（5）, after the completion of the IIth road welding, carry out the first weldering 12 of the IIIth road welding from mild steel 2 side, in the first weldering
Carry out second, third weldering on the basis of 12, after the completion of welding, the quickly cleaning splash of abrasion-resistant stee side and the oxide skin of commissure
And welding slag, carry out the 4th weldering 8, the oxide skin at trimming after the completion of welding and weldering afterwards between the 3rd weldering and abrasion-resistant stee 1
Slag, completes the IIIth road welding；
Step（6）, after the completion of the IIIth road welding, carry out the first weldering 13 of the IVth road welding from mild steel 2 side, in the first weldering
Carry out on the basis of 13 second, third, the 4th weldering, after the completion of welding, the splash of quick cleaning abrasion-resistant stee side and commissure
Oxide skin and welding slag, carry out the 5th weldering 9, the oxidation at trimming after the completion of welding afterwards between the 4th weldering and abrasion-resistant stee 1
Skin and welding slag, complete the IVth road welding；
So, repeat step（6）Complete the Vth road welding, the first of every welding together welds all from the weldering of mild steel 2 side, and
Constantly build weldering from bottom to top, before carrying out last weldering, the quick splash of cleaning abrasion-resistant stee 1 side and the oxide skin of commissure and
Welding slag, afterwards second from the bottom weldering and abrasion-resistant stee 1 between carry out last weldering, the oxide skin at trimming after the completion of welding and
Welding slag, welding process is continuously uninterruptedly to weld, until abrasion-resistant stee and mild steel groove full weld complete.As shown in Figure 2.
The present embodiment weld length is 500mm.Weld in heating, the operation of rolling using after the completion of the welding of the present embodiment method
Seam flawless, cracking situation, and successfully it has been rolled into wear-resisting Combined roll.
Embodiment 3
A kind of abrasion-resistant stee and low-carbon steel dissimilar metal metal molten pole gas shielded arc welding welding procedure, comprise the steps：
Step（1）, select welding wire drying, oil-free, rustless straight carbon steel welding wire as welding wire, welding wire uses front and weld zone
To be dried in domain, oil-free and rustless, reach the effect of dehydrogenation, the described welding wire trade mark is CHW-50C6, a diameter of
1.2mm；
Step（2）, during welding, connection is straight polarity direct current, and playing butt-welding fitting has heat effect；It is 30V in weldingvoltage,
Welding current is 230A, and speed of welding is 1m/min, and groove depth is more than or equal to 10mm, and bevel angle is 140 °, CO2Gas stream
Measure as 10L/min, under the conditions of interlayer temperature is 80 DEG C, full weld is carried out to above-mentioned abrasion-resistant stee and mild steel groove；
Step（3）, during the Ith road welding, carry out the first weldering 10 from mild steel 2 side, after the completion of welding, quickly clear up abrasion-resistant stee
The oxide skin of the splash of side and commissure and welding slag, carry out the second weldering 6, welding afterwards between the first weldering 10 and abrasion-resistant stee 1
After the completion of oxide skin at trimming and welding slag, complete the Ith road welding；
Step（4）, after the completion of the Ith road welding, carry out the first weldering 11 of the IIth road welding from mild steel 2 side, in the first weldering
Carry out the second weldering on the basis of 11, after the completion of welding, the quickly splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and weldering
Slag, carries out the 3rd weldering 7, the oxide skin at trimming after the completion of welding and welding slag afterwards between the second weldering and abrasion-resistant stee 1, complete
Become the IIth road welding；
Step（5）, after the completion of the IIth road welding, carry out the first weldering 12 of the IIIth road welding from mild steel 2 side, in the first weldering
Carry out second, third weldering on the basis of 12, after the completion of welding, the quickly cleaning splash of abrasion-resistant stee side and the oxide skin of commissure
And welding slag, carry out the 4th weldering 8, the oxide skin at trimming after the completion of welding and weldering afterwards between the 3rd weldering and abrasion-resistant stee 1
Slag, completes the IIIth road welding；
Step（6）, after the completion of the IIIth road welding, carry out the first weldering 13 of the IVth road welding from mild steel 2 side, in the first weldering
Carry out on the basis of 13 second, third, the 4th weldering, after the completion of welding, the splash of quick cleaning abrasion-resistant stee side and commissure
Oxide skin and welding slag, carry out the 5th weldering 9, the oxidation at trimming after the completion of welding afterwards between the 4th weldering and abrasion-resistant stee 1
Skin and welding slag, complete the IVth road welding；
So, repeat step（6）Complete the Vth road welding, the first of every welding together welds all from the weldering of mild steel 2 side, and
Constantly build weldering from bottom to top, before carrying out last weldering, the quick splash of cleaning abrasion-resistant stee 1 side and the oxide skin of commissure and
Welding slag, afterwards second from the bottom weldering and abrasion-resistant stee 1 between carry out last weldering, the oxide skin at trimming after the completion of welding and
Welding slag, welding process is continuously uninterruptedly to weld, until abrasion-resistant stee and mild steel groove full weld complete.As shown in Figure 2.
The present embodiment weld length is 300mm.After the completion of the welding of the present embodiment method, in heating, the operation of rolling
Weld seam flawless, cracking situation, and successfully it has been rolled into wear-resisting Combined roll.
Table 1 65Mn chemical composition（%）
| C | Si | Mn | Cr | Ni | Cu | P | S |
| 0.62-0.70 | 0.17-0.37 | 0.90-1.20 | ≤0.25 | ≤0.25 | ≤0.25 | ≤0.035 | ≤0.035 |
Table 2 Q235 chemical composition（%）
| C | Mn | Si | S | P |
| 0.12~0.20 | 0.30~0.70 | 0.30 | 0.045 | 0.045 |
Table 3 CHW-50C6 welding wire chemical composition（%）
| C | Mn | Si | S | P | Cu | Cr | Ni | Mo | V | |
| Welding wire | 0.08 | 1.52 | 0.88 | 0.015 | 0.020 | 0.20 | 0.020 | 0.021 | 0.007 | 0.008 |
Ultimate principle and principal character and the advantages of the present invention of the present invention have been shown and described above.The technology of the industry
, it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description is originally for personnel
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and its
Equivalent thereof.
Claims (6)
1. a kind of abrasion-resistant stee and low-carbon steel dissimilar metal metal molten pole gas shielded arc welding welding procedure are it is characterised in that include following walking
Suddenly：
Step（1）, select drying, oil-free, rustless ordinary carbon steel welding wire, and keep welding wire to do with welding region before use
Dry, oil-free and rustless；
Step（2）, it is 30 ± 10V in weldingvoltage, welding current is 230 ± 70A, speed of welding is 0.2 ~ 1.5m/min, slope
Mouth depth is more than or equal to 10mm, and bevel angle is more than or equal to 90 °, CO2Gas flow is 5 ~ 18L/min, and interlayer temperature is
When under the conditions of 80 ± 40 DEG C, carrying out full weld welding to abrasion-resistant stee and mild steel groove, and welding, connection is straight polarity direct current；
Step（3）, during the Ith road welding, carry out the first weldering from mild steel side, after the completion of welding, quickly cleaning abrasion-resistant stee side is winged
Splash oxide skin and the welding slag of thing and commissure, carry out the second weldering between the first weldering and abrasion-resistant stee afterwards, clear up after the completion of welding
The oxide skin of commissure and welding slag, complete the Ith road welding；
Step（4）, after the completion of the Ith road welding, carry out the first weldering of the IIth road welding from mild steel side, on the basis of the first weldering
Carry out the second weldering, after the completion of welding, the quick splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and welding slag, afterwards the
Carry out the 3rd weldering between two welderings and abrasion-resistant stee, the oxide skin at trimming after the completion of welding and welding slag, complete the IIth road welding；
Step（5）, after the completion of the IIth road welding, carry out the first weldering of the IIIth road welding from mild steel side, on the basis of the first weldering
On carry out second, third weldering, after the completion of welding, the quick splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and welding slag,
Carry out the 4th weldering between the 3rd weldering and abrasion-resistant stee afterwards, the oxide skin at trimming after the completion of welding and welding slag, complete the
III road welding；
So, repeat step（5）Complete the IV, the V ... N road welding, the first weldering of every welding together is all welded from mild steel side
, and constantly build weldering, before carrying out last weldering, the quickly cleaning splash of abrasion-resistant stee side and the oxidation of commissure from bottom to top
Skin and welding slag, carry out last weldering, the oxidation at trimming after the completion of welding afterwards between weldering second from the bottom and abrasion-resistant stee
Skin and welding slag, welding process is continuously uninterruptedly to weld, until abrasion-resistant stee and mild steel groove full weld complete.
2. abrasion-resistant stee according to claim 1 and low-carbon steel dissimilar metal metal molten pole gas shielded arc welding welding procedure, it is special
Levy and be that described welding wire is commercial ordinary carbon steel welding wire, diameter ＜ 3.0mm.
3. abrasion-resistant stee according to claim 1 and low-carbon steel dissimilar metal metal molten pole gas shielded arc welding welding procedure, it is special
Levy and be that weld length is 300 ± 200mm.
4. abrasion-resistant stee according to claim 1 and low-carbon steel dissimilar metal metal molten pole gas shielded arc welding welding procedure, it is special
Levy and be to comprise the steps：
Step（1）, select drying, oil-free, rustless ordinary carbon steel welding wire, and keep welding wire to do with welding region before use
Dry, oil-free and rustless；
Step（2）, it is 20V in weldingvoltage, welding current is 160A, speed of welding is 0.2m/min, groove depth is 10mm,
Bevel angle is 90 °, CO2Gas flow is 5L/min, under the conditions of interlayer temperature is 40 DEG C, abrasion-resistant stee and mild steel groove is entered
Row full weld welds, and when welding, connection is straight polarity direct current；
Step（3）, during the Ith road welding, carry out the first weldering from mild steel side, after the completion of welding, quickly cleaning abrasion-resistant stee side is winged
Splash oxide skin and the welding slag of thing and commissure, carry out the second weldering between the first weldering and abrasion-resistant stee afterwards, clear up after the completion of welding
The oxide skin of commissure and welding slag, complete the Ith road welding；
Step（4）, after the completion of the Ith road welding, carry out the first weldering of the IIth road welding from mild steel side, on the basis of the first weldering
Carry out the second weldering, after the completion of welding, the quick splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and welding slag, afterwards the
Carry out the 3rd weldering between two welderings and abrasion-resistant stee, the oxide skin at trimming after the completion of welding and welding slag, complete the IIth road welding；
Step（5）, after the completion of the IIth road welding, carry out the first weldering of the IIIth road welding from mild steel side, on the basis of the first weldering
On carry out second, third weldering, after the completion of welding, the quick splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and welding slag,
Carry out the 4th weldering between the 3rd weldering and abrasion-resistant stee afterwards, the oxide skin at trimming after the completion of welding and welding slag, complete the
III road welding；
So, repeat step（5）Complete the IV, the V ... N road welding, the first weldering of every welding together is all welded from mild steel side
, and constantly build weldering, before carrying out last weldering, the quickly cleaning splash of abrasion-resistant stee side and the oxidation of commissure from bottom to top
Skin and welding slag, carry out last weldering, the oxidation at trimming after the completion of welding afterwards between weldering second from the bottom and abrasion-resistant stee
Skin and welding slag, welding process is continuously uninterruptedly to weld, until abrasion-resistant stee and mild steel groove full weld complete.
5. abrasion-resistant stee according to claim 1 and low-carbon steel dissimilar metal metal molten pole gas shielded arc welding welding procedure, it is special
Levy and be to comprise the steps：
Step（1）, select drying, oil-free, rustless ordinary carbon steel welding wire, and keep welding wire to do with welding region before use
Dry, oil-free and rustless；
Step（2）, it is 40V in weldingvoltage, welding current is 300A, speed of welding is 1.5m/min, groove depth is 15mm,
Bevel angle is 110 °, CO2Gas flow is 18L/min, under the conditions of interlayer temperature is 120 DEG C, to abrasion-resistant stee and mild steel slope
Mouth carries out full weld welding, and when welding, connection is straight polarity direct current；
Step（3）, during the Ith road welding, carry out the first weldering from mild steel side, after the completion of welding, quickly cleaning abrasion-resistant stee side is winged
Splash oxide skin and the welding slag of thing and commissure, carry out the second weldering between the first weldering and abrasion-resistant stee afterwards, clear up after the completion of welding
The oxide skin of commissure and welding slag, complete the Ith road welding；
Step（4）, after the completion of the Ith road welding, carry out the first weldering of the IIth road welding from mild steel side, on the basis of the first weldering
Carry out the second weldering, after the completion of welding, the quick splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and welding slag, afterwards the
Carry out the 3rd weldering between two welderings and abrasion-resistant stee, the oxide skin at trimming after the completion of welding and welding slag, complete the IIth road welding；
Step（5）, after the completion of the IIth road welding, carry out the first weldering of the IIIth road welding from mild steel side, on the basis of the first weldering
On carry out second, third weldering, after the completion of welding, the quick splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and welding slag,
Carry out the 4th weldering between the 3rd weldering and abrasion-resistant stee afterwards, the oxide skin at trimming after the completion of welding and welding slag, complete the
III road welding；
So, repeat step（5）Complete the IV, the V ... N road welding, the first weldering of every welding together is all welded from mild steel side
, and constantly build weldering, before carrying out last weldering, the quickly cleaning splash of abrasion-resistant stee side and the oxidation of commissure from bottom to top
Skin and welding slag, carry out last weldering, the oxidation at trimming after the completion of welding afterwards between weldering second from the bottom and abrasion-resistant stee
Skin and welding slag, welding process is continuously uninterruptedly to weld, until abrasion-resistant stee and mild steel groove full weld complete.
6. abrasion-resistant stee according to claim 1 and low-carbon steel dissimilar metal metal molten pole gas shielded arc welding welding procedure, it is special
Levy and be to comprise the steps：
Step（1）, select drying, oil-free, rustless ordinary carbon steel welding wire, and keep welding wire to do with welding region before use
Dry, oil-free and rustless；
Step（2）, it is 30V in weldingvoltage, welding current is 230A, speed of welding is 1m/min, groove depth is more than or equal to
10mm, bevel angle is 140 °, CO2Gas flow is 10L/min, under conditions of interlayer temperature is 80 DEG C, to abrasion-resistant stee and low
Carbon steel groove carries out full weld welding, and when welding, connection is straight polarity direct current；
Step（3）, during the Ith road welding, carry out the first weldering from mild steel side, after the completion of welding, quickly cleaning abrasion-resistant stee side is winged
Splash oxide skin and the welding slag of thing and commissure, carry out the second weldering between the first weldering and abrasion-resistant stee afterwards, clear up after the completion of welding
The oxide skin of commissure and welding slag, complete the Ith road welding；
Step（4）, after the completion of the Ith road welding, carry out the first weldering of the IIth road welding from mild steel side, on the basis of the first weldering
Carry out the second weldering, after the completion of welding, the quick splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and welding slag, afterwards the
Carry out the 3rd weldering between two welderings and abrasion-resistant stee, the oxide skin at trimming after the completion of welding and welding slag, complete the IIth road welding；
Step（5）, after the completion of the IIth road welding, carry out the first weldering of the IIIth road welding from mild steel side, on the basis of the first weldering
On carry out second, third weldering, after the completion of welding, the quick splash of cleaning abrasion-resistant stee side and the oxide skin of commissure and welding slag,
Carry out the 4th weldering between the 3rd weldering and abrasion-resistant stee afterwards, the oxide skin at trimming after the completion of welding and welding slag, complete the
III road welding；
So, repeat step（5）Complete the IV, the V ... N road welding, the first weldering of every welding together is all welded from mild steel side
, and constantly build weldering, before carrying out last weldering, the quickly cleaning splash of abrasion-resistant stee side and the oxidation of commissure from bottom to top
Skin and welding slag, carry out last weldering, the oxidation at trimming after the completion of welding afterwards between weldering second from the bottom and abrasion-resistant stee
Skin and welding slag, welding process is continuously uninterruptedly to weld, until abrasion-resistant stee and mild steel groove full weld complete.
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| CN105312744B (en) * | 2015-11-30 | 2017-10-20 | 天津威尔朗科技有限公司 | Middle manganese wear-resistant steel and 30MnSi chute steel gas metal-arc welding techniques |
| CN105855292B (en) * | 2016-03-31 | 2018-05-15 | 云南昆钢新型复合材料开发有限公司 | A kind of method that wear-resisting steel composite board volume is produced with asymmetric abrasion-resistant stee composite billet hot rolling |
| CN106825876A (en) * | 2017-03-23 | 2017-06-13 | 江苏信泰化工装备有限公司 | The welding method of the CO2 gas shielded arc weldings of large diameter pipeline foreign material |
| CN108544117B (en) * | 2018-07-04 | 2019-10-15 | 中国原子能科学研究院 | A kind of welding method of superconducting cyclotron vacuum chamber different wall thickness welding position |
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| CN101767245A (en) * | 2009-12-30 | 2010-07-07 | 广州中船龙穴造船有限公司 | Horizontal position welding method |
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| JP2000107861A (en) * | 1998-10-02 | 2000-04-18 | Kobe Steel Ltd | Pulse mag welding method for corrosion-resisting steel sheet |
| CN101927396A (en) * | 2009-06-19 | 2010-12-29 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for welding steel plate by multi-layer welding |
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