CN104741812B - The adapter of a kind of minor diameter thin wall oblique cutting and the welding method of overlay cladding - Google Patents

The adapter of a kind of minor diameter thin wall oblique cutting and the welding method of overlay cladding Download PDF

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Publication number
CN104741812B
CN104741812B CN201510162564.XA CN201510162564A CN104741812B CN 104741812 B CN104741812 B CN 104741812B CN 201510162564 A CN201510162564 A CN 201510162564A CN 104741812 B CN104741812 B CN 104741812B
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CN
China
Prior art keywords
oblique cutting
welding
adapter
overlay cladding
pipe joint
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Application number
CN201510162564.XA
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Chinese (zh)
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CN104741812A (en
Inventor
李双燕
徐超
张茂龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Electric Nuclear Power Equipment Co Ltd
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Shanghai Electric Nuclear Power Equipment Co Ltd
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Application filed by Shanghai Electric Nuclear Power Equipment Co Ltd filed Critical Shanghai Electric Nuclear Power Equipment Co Ltd
Priority to CN201510162564.XA priority Critical patent/CN104741812B/en
Publication of CN104741812A publication Critical patent/CN104741812A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/16Arc welding or cutting making use of shielding gas
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/235Preliminary treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/04Tubular or hollow articles
    • B23K2101/06Tubes

Abstract

The invention discloses the welding method of the adapter of a kind of minor diameter thin wall oblique cutting and overlay cladding, it comprises the steps of S1, the upper semi-circle in aperture, rubbing down oblique cutting hole;S2, assembling adapter, by the lower half circle in aperture, oblique cutting hole and pipe joint spot welding;S3, the upper semi-circle by aperture, oblique cutting hole weld completely with pipe joint;Pipe joint surplus is removed in S4, polishing.Its advantage is: is pointed to pipe joint and stretches out the aperture, oblique cutting hole of the more side of overlay cladding and carry out rubbing down, makes the welding of this side joint tube head follow-up become easy and be difficult to burn-through;Before upper semi-circle with pipe joint welding, first carry out spot welding at the position of lower half circle docking tube head, play good fixed effect;The welding operation of segmented is simple, easily realizes.

Description

The adapter of a kind of minor diameter thin wall oblique cutting and the welding method of overlay cladding
Technical field
The present invention relates to field, be specifically related to the welding method of a kind of minor diameter thin wall oblique cutting adapter.
Background technology
The standing structure such as Fig. 1 institute being connected with overlay cladding angle welding in respect of the adapter of a kind of minor diameter on nuclear power or chemical industry equipment Showing, being concrete application on nuclear power main equipment steam generator water chamber head for this kind of structure, the material of this small takeover 4 ' is Stainless steel or nickel-base alloy, the material of the upper overlay cladding 2 ' of housing 1 ' is stainless steel, and the diameter of small takeover 4 ' is less and wall thickness is relatively thin, Tilt insert housing 1 ' perforate and stretch out overlay cladding 2 ' certain length and weld with it;But during welding, due to small takeover 4 ' tube wall Relatively thin, its length thereof (i.e. pipe joint) stretching out weld layer 2 ' is easily caused the vessel wall damage of small takeover 4 ' by burn-through, it is impossible to Ensure the weldquality after welding.
Content of the invention
It is an object of the invention to provide the welding method of the adapter of a kind of minor diameter thin wall oblique cutting and overlay cladding, it can be true Protect not burn-through minor diameter thin wall oblique cutting adapter, it is ensured that the quality of weld seam.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
The adapter of a kind of minor diameter thin wall oblique cutting and the welding method of overlay cladding, described overlay cladding is positioned at a surface of shell, This overlay cladding and the through oblique cutting hole being provided with for installing described adapter of housing;Described adapter has stretches out connecing of overlay cladding Tube head;Described oblique cutting hole has an elliptical orifice, and this elliptical orifice comprises the short axle both sides laying respectively at this ellipse Two semicircles, will be located in described pipe joint and stretch out the semicircle of the more side of overlay surface and be referred to as upper semi-circle, will be located in described The semicircle that pipe joint stretches out the less side of overlay surface is referred to as lower half circle;It is characterized in that, described welding method comprises following Step:
S1, the upper semi-circle in aperture, rubbing down oblique cutting hole;
S2, assembling adapter, by the lower half circle in aperture, oblique cutting hole and pipe joint spot welding;
S3, the upper semi-circle by aperture, oblique cutting hole weld completely with pipe joint;
Pipe joint surplus is removed in S4, polishing.
Before described step S1, also comprise:
The oblique cutting hole of S0, cleaning adapter and housing.
In described step S2:
Described spot welding position is positioned at the arcuate midway point of the lower half circle in aperture, oblique cutting hole and the junction of pipe joint.
Described step S3 specifically comprises:
S31, adapter be inserted into circular cone rod or pole;
S32, the upper semi-circle by aperture, oblique cutting hole weld completely with pipe joint;
S33, taking-up circular cone rod or pole.
In described step S31, S33:
Described circular cone rod or pole are stainless steel or nickel-bass alloy material.
In described step S32:
It is passed through protective gas in adapter during welding.
Described step S2, S3 all use manual argon arc welding to connect.
After described step S4, also comprise:
S5, the remainder by aperture, oblique cutting hole lower half circle weld completely with pipe joint.
In described step S5:
It is passed through protective gas in adapter during welding.
The present invention compared with prior art has the advantage that
1st, it is pointed to pipe joint and stretches out the aperture, oblique cutting hole of the more side of overlay cladding and carry out rubbing down, makes this side joint pipe follow-up The welding of head becomes easy and is difficult to burn-through;
2nd, before upper semi-circle with pipe joint welding, first carry out spot welding at the position of lower half circle docking tube head, play good Fixed effect;
3rd, the welding operation of segmented is simple, easily realizes.
Brief description
Fig. 1 is the structural representation of prior art;
Fig. 2 is the overall structure sectional view with overlay cladding for the housing of the present invention;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is the overall structure sectional view that after Fig. 2 inserts adapter, spot welding finishes;
Fig. 5 is the overall structure sectional view of the adapter after step S3 of the present invention completes and overlay cladding structure;
Fig. 6 is the end-state sectional view of the adapter after the present invention completes and overlay cladding structure;
Fig. 7 is the top view of Fig. 6;
Fig. 8 is the overall structure schematic diagram of the circular cone rod of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
The adapter of a kind of minor diameter thin wall oblique cutting and the welding method of overlay cladding, as shown in Figure 2,3, 4, described overlay cladding 2 It is positioned at housing 1 surface, this overlay cladding 2 and the through oblique cutting hole 3 being provided with for installing described adapter 4 of housing 1;Described adapter 4 have the pipe joint 41 stretching out overlay cladding 2;Described oblique cutting hole 3 has an elliptical orifice, and this elliptical orifice comprises point It is not positioned at two semicircles of the short axle both sides of this ellipse, will be located in described pipe joint 41 and stretch out the more side in overlay cladding 2 surface Semicircle be referred to as upper semi-circle 31, will be located in described pipe joint 41 and stretch out the semicircle of the less side in overlay cladding 2 surface and be referred to as lower half circle 32;Wherein, described welding method comprises the steps of
S1 is as in figure 2 it is shown, the upper semi-circle 31 in aperture, rubbing down oblique cutting hole 3;
S2, as shown in Figure 3,4, assembles adapter 4, by lower half circle 32 and pipe joint 41 spot welding in aperture, oblique cutting hole 3;
S3 as it is shown in figure 5, weld the upper semi-circle 31 in aperture, oblique cutting hole 3 completely with pipe joint 41;
S4, as shown in Figure 6, polishing is removed pipe joint 41 surplus, is required with satisfied design.
In the present embodiment, before described step S1, also comprise:
The oblique cutting hole 3 of S0, cleaning adapter 4 and housing 1.
In the present embodiment, in described step S2: described spot welding position is positioned at the circle of the lower half circle 32 in aperture, oblique cutting hole 3 Spot welding position is controlled at pipe joint 41 apart from the minimum point of overlay cladding 2, plays fixing by arc midpoint and the junction of pipe joint 41 Adapter 4 prevents it from moving when welding.
In the present embodiment, described step S3 specifically comprises:
It S31, is inserted into circular cone rod 5 or pole in adapter 4, play the interlayer temperature reducing in welding process and guarantee weldering It is seamed into the effect of shape, as shown in Figure 8, the small end of circular cone rod 5 is first inserted;
S32, upper semi-circle 31 and the pipe joint 41 in aperture, oblique cutting hole 3 are welded completely;
S33, taking-up circular cone rod 5 or pole.
In the present embodiment, in described step S31, S33: described circular cone rod 5 or pole are stainless steel or nickel-base alloy Material.
In the present embodiment, in described step S32: be passed through protection from the mouth of pipe of adapter 4 other end in adapter 4 during welding Gas.
In the present embodiment, described step S2, S3 all use manual argon arc welding to connect.
As shown in Figure 6,7, in the present embodiment, after described step S4, also comprise:
S5, the remainder by aperture, oblique cutting hole 3 lower half circle 32 weld completely with pipe joint 41, can be from adapter during welding The mouth of pipe of 4 other ends is passed through protective gas in adapter 4.
In the method for the present invention, because butt tube 4 stretches out more this side has carried out rubbing down, this one side of something is made to be more prone to weldering Connecing, so first welding, and other one side of something stretches out less, is difficult to burn-through, welds later.
Although present disclosure has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned Description is not considered as limitation of the present invention.After those skilled in the art have read foregoing, for the present invention's Multiple modifications and replacement all will be apparent from.Therefore, protection scope of the present invention should be limited to the appended claims.

Claims (9)

1. a welding method for the adapter of minor diameter thin wall oblique cutting and overlay cladding, described overlay cladding (2) is positioned at a housing (1) table Face, this overlay cladding (2) and the through oblique cutting hole (3) being provided with for installing described adapter (4) of housing (1);Described adapter (4) tool There is the pipe joint (41) stretching out overlay cladding (2);Described oblique cutting hole (3) has an elliptical orifice, this elliptical orifice bag Two semicircles containing the short axle both sides laying respectively at this ellipse, will be located in described pipe joint (41) and stretch out overlay cladding (2) surface The semicircle of more side is referred to as upper semi-circle (31), will be located in described pipe joint (41) and stretches out the less side in overlay cladding (2) surface Semicircle is referred to as lower half circle (32);It is characterized in that, described welding method comprises the steps of
S1, the upper semi-circle (31) in rubbing down oblique cutting hole (3) aperture;
S2, assembling adapter (4), by the lower half circle (32) in oblique cutting hole (3) aperture and pipe joint (41) spot welding;
S3, the upper semi-circle (31) in oblique cutting hole (3) aperture and pipe joint (41) are welded completely;
Pipe joint (41) surplus is removed in S4, polishing.
2. the welding method of minor diameter thin wall oblique cutting adapter as claimed in claim 1 and overlay cladding, it is characterised in that described Before step S1, also comprise:
The oblique cutting hole (3) of S0, cleaning adapter (4) and housing (1).
3. the welding method of minor diameter thin wall oblique cutting adapter as claimed in claim 1 and overlay cladding, it is characterised in that described In step S2:
Described spot welding position is positioned at the arcuate midway point of the lower half circle (32) in oblique cutting hole (3) aperture and the connection of pipe joint (41) Place.
4. the welding method of minor diameter thin wall oblique cutting adapter as claimed in claim 1 and overlay cladding, it is characterised in that described Step S3 specifically comprises:
S31, adapter (4) be inserted into circular cone rod (5) or pole;
S32, the upper semi-circle (31) in oblique cutting hole (3) aperture and pipe joint (41) are welded completely;
S33, taking-up circular cone rod (5) or pole.
5. the welding method of minor diameter thin wall oblique cutting adapter as claimed in claim 4 and overlay cladding, it is characterised in that described In step S31, S33:
Described circular cone rod (5) or pole are stainless steel or nickel-bass alloy material.
6. the welding method of minor diameter thin wall oblique cutting adapter as claimed in claim 4 and overlay cladding, it is characterised in that described In step S32:
It is passed through protective gas in adapter (4) during welding.
7. the welding method of minor diameter thin wall oblique cutting adapter as claimed in claim 1 and overlay cladding, it is characterised in that:
Described step S2, S3 all use manual argon arc welding to connect.
8. the welding method of minor diameter thin wall oblique cutting adapter as claimed in claim 1 and overlay cladding, it is characterised in that described After step S4, also comprise:
S5, the remainder in oblique cutting hole (3) aperture lower half circle (32) and pipe joint (41) are welded completely.
9. the welding method of minor diameter thin wall oblique cutting adapter as claimed in claim 8 and overlay cladding, it is characterised in that described In step S5:
It is passed through protective gas in adapter (4) during welding.
CN201510162564.XA 2015-04-08 2015-04-08 The adapter of a kind of minor diameter thin wall oblique cutting and the welding method of overlay cladding Active CN104741812B (en)

Priority Applications (1)

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CN201510162564.XA CN104741812B (en) 2015-04-08 2015-04-08 The adapter of a kind of minor diameter thin wall oblique cutting and the welding method of overlay cladding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510162564.XA CN104741812B (en) 2015-04-08 2015-04-08 The adapter of a kind of minor diameter thin wall oblique cutting and the welding method of overlay cladding

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CN104741812A CN104741812A (en) 2015-07-01
CN104741812B true CN104741812B (en) 2016-10-05

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07260980A (en) * 1994-03-24 1995-10-13 Ishikawajima Harima Heavy Ind Co Ltd Welding method of stub tube for installing control rod driving mechnism housing, and stub tube structure
CN100391676C (en) * 2005-02-22 2008-06-04 大连新船重工有限责任公司 Technological method of partly submerged type platform complex K type node welding
CN100493799C (en) * 2006-03-20 2009-06-03 上海锅炉厂有限公司 Method of welding the plug in type connection tube and the un-orthogonal crossed connection joint of the cylinder
CN102069267A (en) * 2011-01-25 2011-05-25 杭州凯尔达电焊机有限公司 Universal arc welding robot teaching method regarding cylinder intersection welding seam
CN102380690A (en) * 2011-03-30 2012-03-21 上海锅炉厂有限公司 Method for controlling welding deformation of joint between inserted large inclined tube and barrel
CN102699551B (en) * 2012-06-29 2015-03-04 四川蓝星机械有限公司 Method for welding oblique inserted pipe of large chemical equipment
CN102886613B (en) * 2012-09-20 2015-09-02 苏州天沃科技股份有限公司 The welding method of furnace cover of gasification furnace upper connecting tube

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