CN106862710A - A kind of pipeline cambered surface boring method and the cutting torch supporting and regulating device of perforate - Google Patents
A kind of pipeline cambered surface boring method and the cutting torch supporting and regulating device of perforate Download PDFInfo
- Publication number
- CN106862710A CN106862710A CN201710035931.9A CN201710035931A CN106862710A CN 106862710 A CN106862710 A CN 106862710A CN 201710035931 A CN201710035931 A CN 201710035931A CN 106862710 A CN106862710 A CN 106862710A
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- China
- Prior art keywords
- cutting torch
- lateral adjustments
- longitudinally adjust
- regulation
- perforate
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Classifications
-
- 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
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/005—Machines, apparatus, or equipment specially adapted for cutting curved workpieces, e.g. tubes
- B23K7/006—Machines, apparatus, or equipment specially adapted for cutting curved workpieces, e.g. tubes for tubes
-
- 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
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/10—Auxiliary devices, e.g. for guiding or supporting the torch
- B23K7/102—Auxiliary devices, e.g. for guiding or supporting the torch for controlling the spacial relationship between the workpieces and the gas torch
-
- 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
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/10—Auxiliary devices, e.g. for guiding or supporting the torch
- B23K7/105—Auxiliary devices, e.g. for guiding or supporting the torch specially adapted for particular geometric forms
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention relates to cambered surface perforate field.To improve perforate efficiency and perforate precision, the present invention proposes a kind of pipeline cambered surface boring method：Draw axially position line, circumferentially positioned line, the contour line and line of cut of pipe platform mounting hole；Cutpoint A' and B' and pre- rest point C and D is set；To include that the cutting torch adjusting supporting device of rotary shaft, regulation montant and regulation cross bar is arranged on perforate pipeline, fixes sleeve is set in rotary shaft lower end and is vertically fixed on perforate pipeline；Adjust cutting torch supporting and regulating device and start cutting torch and preheated, until preheated zone is in the range of 150 DEG C 250 DEG C, close cutting torch；Regulation cutting torch supporting and regulating device, is cut at pre- rest point D and C cutpoint A' and B' since along line of cut, closes cutting torch；Cutting torch supporting and regulating device is removed, hand-held cutting torch carries out being cut to cutting completion along line of cut to remainder.Using pipeline cambered surface boring method perforate in pipeline cambered surface, perforate efficiency, high precision are simple to operate.
Description
Technical field
The present invention relates to cambered surface perforate field, more particularly to it is a kind of perforate is carried out to pipeline cambered surface method and perforate when
The cutting torch supporting and regulating device used.
Background technology
In nuclear power, oil and chemical industry, especially in nuclear power building course, it is often necessary to carry out perforate to pipeline and add
Work.Such as, in AP1000 construction of nuclear power station installation processes, need to a diameter of 38 " main steam line on install a diameter of 6 ",
During the pipe platform of 8 " and 12 " three kinds of specifications, diameter be respectively 16 ", 13.9 ", 25 need to be opened up on main steam line " pipe platform install
Hole.At present, cutting is carried out to perforate pipeline in Water Cutting computer room frequently with water-jet machine and forms pipe platform mounting hole, or
Perforate personnel hand-held cutting tool carries out cutting to perforate pipeline and forms pipe platform mounting hole at Pipe installing scene.But, when adopting
When being cut to form pipe platform mounting hole with water-jet machine, because the headspace at Pipe installing scene is not enough to place water cutting machine
Bed, therefore first perforate pipeline must be transported to and cutting work is completed in Water Cutting computer room, then transporting Pipe installing scene back again is carried out
Pipe platform is installed, and perforate pipeline is transported back and forth, and workload is big, wastes time and energy, and then causes perforate efficiency low, perforate high cost；When
During using artificial perforate, because bore size is big, position of opening is densely distributed, and hole shape is irregular, and artificial operation is not
Stabilization, causes artificial perforate difficulty big, and perforate efficiency is low, and perforate precision is low, it is difficult to meet pipe platform installation requirement.
The content of the invention
To improve perforate efficiency and perforate precision, the present invention proposes a kind of pipeline cambered surface boring method, and the pipeline cambered surface is opened
Hole method comprises the following steps：
Step S1, according to design position of opening, on the outer surface of the perforate pipeline measurement draw perforate central point O,
And draw by the axially position line mn and circumferentially positioned line l of the perforate central point O；
Step S2, four anchor points a, b, c and d, and anchor point a and anchor point c are marked on the bottom outer-edge of pipe platform
Between line it is vertical with the line between anchor point b and anchor point c；
Step S3, the pipe platform is placed on the perforate pipeline, and is located at the anchor point a and the anchor point c
On the axis location line mn, the anchor point b and anchor point d is set to be located on the circumferentially positioned line l, and along the pipe
The bottom outer-edge of platform draws the contour line l of pipe platform mounting hole on the outer surface of the perforate pipelineo；
Step S4, the pipe platform is removed, in the contour line loUpper several profile points of selection, and the profile point is to institute
State perforate central point O skews s1Cut point is obtained, two adjacent cut point camber lines connect to form line of cut lc；Mark described
Line of cut lcWith the crosspoint A and B between the axially position line mn, and the crosspoint A and B is along the axially position line mn
S is offset to the perforate central point O2Cutpoint A' and B' have been obtained, and in the line of cut lcIt is upper that pre- rest point C and D, and institute are set
State pre- rest point C and play cutpoint B' near described near the cutpoint A', the pre- rest point D of rising；
Step S5, by cutting torch supporting and regulating device be arranged on the perforate pipeline on, the cutting torch supporting and regulating device bag
Include rotary shaft, regulation montant and regulation cross bar, the lower end of the rotary shaft be arranged with fixes sleeve and the rotary shaft with it is described
Fixes sleeve can be relatively rotated, and the upper end of the rotary shaft is provided with the first lateral adjustments retaining mechanism；The regulation montant
Upper end is arranged with longitudinally adjust retaining mechanism, and the longitudinally adjust retaining mechanism can be moved up and down along the regulation montant, and described
Longitudinally adjust retaining mechanism is fixedly connected with the second lateral adjustments retaining mechanism, and the lower end of the regulation montant is provided with clamping and cuts
The cutting torch fixture of torch；The connection end of the regulation cross bar is located in the connection support in the first lateral adjustments retaining mechanism
In set, and it is locked by the lateral adjustments locking member being arranged on the connection support set, the support of the regulation cross bar
End is located in the connection support set in the second lateral adjustments retaining mechanism, and by being arranged on the connection support set
Lateral adjustments locking member be locked；The fixes sleeve vertical welding in the cutting torch supporting and regulating device is fixed on institute
State on perforate pipeline, and the fixes sleeve central axis by the perforate central point O；
Step S6, cutting torch is clamped in the cutting torch fixture, and adjust the first lateral adjustments retaining mechanism and/or
Locked position of the second lateral adjustments retaining mechanism on the regulation cross bar, makes nozzle of cutting torch be located at the line of cut lc
Top；Start the cutting torch, rotate the cutting torch supporting and regulating device and adjust the longitudinally adjust retaining mechanism, make described
Nozzle of cutting torch and the line of cut lcBetween vertical distance be maintained in the range of 15-25mm, make the cutting torch along the cutting
Line lcThe perforate pipeline is preheated, and prison is entered to the temperature T on preheated zone surface using temperature measuring equipment in warm
Survey, until temperature T is in when in the range of 150 DEG C -250 DEG C, close the cutting torch, stop preheating；
Step 7, the rotation cutting torch supporting and regulating device simultaneously adjust the lateral adjustments retaining mechanism, spray the cutting torch
Mouth is located at the top for playing cutpoint A', and adjusting the longitudinally adjust retaining mechanism makes the nozzle of cutting torch with the perforate pipeline
Outer surface between vertical distance in the range of 3-5mm；Start the cutting torch and keep the cutting torch supporting and regulating device not
It is dynamic, until tube wall of the perforate pipeline at described cutpoint A' is burnt；Rotate the cutting torch supporting and regulating device and adjust
The longitudinally adjust retaining mechanism is saved, the vertical distance between the outer surface of the nozzle of cutting torch and the perforate pipeline is kept
In the range of 3-5mm, make the cutting torch along the line of cut lcTube wall to the perforate pipeline cuts, until being cut to
The pre- rest point D, closes the cutting torch, stops cutting；
Rotating the cutting torch supporting and regulating device makes the nozzle of cutting torch be located at the top of cutpoint B', adjusts the longitudinal direction
Regulation retaining mechanism makes the vertical distance between the outer surface of the nozzle of cutting torch and the perforate pipeline in the range of 3-5mm；
Start the cutting torch and keep the cutting torch supporting and regulating device motionless, until the perforate pipeline is playing the tube wall at cutpoint B'
Burnt；Rotate the cutting torch supporting and regulating device and adjust the longitudinally adjust retaining mechanism, make the nozzle of cutting torch and institute
The vertical distance stated between the outer surface of perforate pipeline is maintained in the range of 3-5mm, makes the cutting torch along the line of cut lcIt is right
The tube wall of the perforate pipeline is cut, until being cut to the pre- rest point C, closes the cutting torch, stops cutting；
Step 8, the dismounting cutting torch supporting and regulating device, cutting torch is along line of cut l described in man-hour manually hand-heldcRemainder is entered
Row cutting, until cutting is completed.
When carrying out cutting hole open in pipeline cambered surface using the pipeline cambered surface boring method, be able to will be cut at Pipe installing scene
Torch supporting and regulating device is installed to carries out cutting perforate on perforate pipeline, and is transported through without split hole pipeline, can save people
Power material resources, improve perforate efficiency.In addition, operating personnel only need the first lateral adjustments retaining mechanism of regulation and/or the second horizontal tune
Section retaining mechanism, you can keep the cut radius of cutting torch to keep constant, so as to cutting accuracy can be improved；Only need to rotate cutting torch support
Adjusting means simultaneously adjusts longitudinally adjust retaining mechanism, makes perpendicular between the cutting position on nozzle of cutting torch and perforate pipeline external surface
Straight distance is maintained in the range of 3-5mm, you can complete cutting work along line of cut, simple to operate.
Preferably, in the step S4, s1Span be 3-10mm, s2Span be 10-20mm, it is described
Spacing between pre- rest point C and described cutpoint A' and the pre- rest point D and described cutpoint B' is 10-30mm.
Preferably, the contour line l is chosenoOn 16 Along ents as profile point, connect what is formed to improve camber line
Line of cut lcPrecision, and then improve cutting accuracy.
Preferably, in the first lateral adjustments retaining mechanism and the second lateral adjustments retaining mechanism, the company
Connect and be provided with support set lateral adjustments hole, the lateral adjustments locking member is through the lateral adjustments pore pressure system and locks the tune
Section cross bar；The longitudinally adjust retaining mechanism includes the longitudinally connected sleeve pipe and longitudinally adjust lock that are set on the regulation montant
Tight part, is provided with longitudinally adjust hole, and the longitudinally adjust locking member through the longitudinally adjust hole on the longitudinally connected sleeve pipe
Suppress and lock the regulation montant.
Preferably, it is provided with the lateral adjustments teeth groove vertical with the axial direction of the regulation cross bar on the regulation cross bar；
The lateral adjustments locking member includes lateral adjustments sleeve and the lateral adjustments swing arm in the lateral adjustments sleeve, described
Support set is vertical connects with the connection at the lateral adjustments hole for lateral adjustments sleeve, is set on the lateral adjustments swing arm
There is lateral adjustments tooth；The lateral adjustments swing arm and the regulation cross bar are vertically and by the lateral adjustments tooth and the regulation
Teeth groove engagement connection, and when the lateral adjustments swing arm is rotated in the lateral adjustments sleeve, the regulation cross bar is in institute
State connection support set in move；The longitudinally adjust tooth vertical with the axial direction of the regulation montant is provided with the regulation montant
Groove；The longitudinally adjust locking member includes longitudinally adjust sleeve and the longitudinally adjust swing arm in the longitudinally adjust sleeve,
The longitudinally adjust sleeve is vertical with the longitudinally connected sleeve pipe at the longitudinally adjust hole to be connected, the longitudinally adjust swing arm
On be provided with longitudinally adjust tooth；The longitudinally adjust swing arm and the regulation montant are vertically and by the longitudinally adjust tooth and institute
The engagement connection of longitudinally adjust teeth groove is stated, and when the longitudinally adjust swing arm is rotated in the longitudinally adjust sleeve, the tune
Section montant is moved up and down in the longitudinally connected sleeve pipe.So, operating personnel are erecting in the mouth that touches to cut radius and cutting torch
When the upward height of Nogata is adjusted, lateral adjustments swing arm and longitudinally adjust swing arm only need to be rotated, it is simple to operate.
Preferably, the cutting torch selects oxy-acetylene cutter, when being preheated, the acetylene pressure of the oxy-acetylene cutter
Span is 0.04-0.05MPa, and the span of oxygen pressure is 0.4-0.5MPa；When being cut, the oxy-acetylene
The span of the acetylene pressure of cutting torch is 0.06-0.07MPa, and the span of oxygen pressure is 0.6-0.7MPa.
Preferably, in the step 6, the temperature measuring equipment is infrared thermometer, thermoelectricity occasionally metal tempilstick.
The present invention also proposes a kind of cutting torch supporting and regulating device of pipeline cambered surface perforate, the cutting torch supporting and regulating device bag
Include rotary shaft, regulation montant and regulation cross bar, the lower end of the rotary shaft be arranged with fixes sleeve and the rotary shaft with it is described
Fixes sleeve can be relatively rotated, and the upper end of the rotary shaft is provided with the first lateral adjustments retaining mechanism；The regulation montant
Upper end is arranged with longitudinally adjust retaining mechanism, and the longitudinally adjust retaining mechanism can be moved up and down along the regulation montant, and described
Longitudinally adjust retaining mechanism is fixedly connected with the second lateral adjustments retaining mechanism, and the lower end of the regulation montant is provided with clamping and cuts
The cutting torch fixture of torch；The connection end of the regulation cross bar is located in the connection support in the first lateral adjustments retaining mechanism
In set, and it is locked by the lateral adjustments locking member being arranged on the connection support set, the support of the regulation cross bar
End is located in the connection support set in the second lateral adjustments retaining mechanism, and by being arranged on the connection support set
Lateral adjustments locking member be locked；When in use, the fixes sleeve vertical welding in the cutting torch supporting and regulating device
Connect and be fixed on perforate pipeline, and the fixes sleeve central axis by perforate central point.
Such cutting torch supporting and regulating device simple structure, it is easy to make.Coordinate using the cutting torch supporting and regulating device
Only by spot welding need to be vertically fixed on the fixes sleeve in the current adjusting means of the cutting torch before perforate in pipeline cambered surface by cutting torch
Position of opening on pipeline, and the central axis of fixes sleeve is can be used by perforate central point, convenient disassembly；In perforate
When, operating personnel complete cut radius and cutting torch spray by need to only adjusting lateral adjustments retaining mechanism and longitudinally adjust retaining mechanism
The regulation of the vertical distance between cutting position on mouth and perforate pipeline external surface, it is simple to operate, and using lateral adjustments
Retaining mechanism lock adjustment cross bar to keep cut radius constant, using longitudinally adjust retaining mechanism lock adjustment montant so as to cut
Vertical distance between torch nozzle and cutting position keeps constant, so as to improve cutting accuracy.
Preferably, in the first lateral adjustments retaining mechanism and the second lateral adjustments retaining mechanism, the company
Connect and lateral adjustments hole is set on support set, the lateral adjustments locking member is through the lateral adjustments pore pressure system and locks the regulation
Cross bar；The longitudinally adjust retaining mechanism includes the longitudinally connected sleeve pipe and the longitudinally adjust locking that are set on the regulation montant
Part, is provided with longitudinally adjust hole, and the longitudinally adjust locking member through the longitudinally adjust pore pressure on the longitudinally connected sleeve pipe
Make and lock the regulation montant.
Preferably, it is provided with the lateral adjustments teeth groove vertical with the axial direction of the regulation cross bar on the regulation cross bar；
The lateral adjustments locking member includes lateral adjustments sleeve and the lateral adjustments swing arm in the lateral adjustments sleeve, described
Support set is vertical connects with the connection at the lateral adjustments hole for lateral adjustments sleeve, is set on the lateral adjustments swing arm
There is lateral adjustments tooth；The lateral adjustments swing arm and the regulation cross bar are vertically and by the lateral adjustments tooth and the regulation
Teeth groove engagement connection, and when the lateral adjustments swing arm is rotated in the lateral adjustments sleeve, the regulation cross bar is in institute
State connection support set in move；The longitudinally adjust tooth vertical with the axial direction of the regulation montant is provided with the regulation montant
Groove；The longitudinally adjust locking member includes longitudinally adjust sleeve and the longitudinally adjust swing arm in the longitudinally adjust sleeve,
The longitudinally adjust sleeve is vertical with the longitudinally connected sleeve pipe at the longitudinally adjust hole to be connected, the longitudinally adjust swing arm
On be provided with longitudinally adjust tooth；The longitudinally adjust swing arm and the regulation montant are vertically and by the longitudinally adjust tooth and institute
The engagement connection of longitudinally adjust teeth groove is stated, and when the longitudinally adjust swing arm is rotated in the longitudinally adjust sleeve, the tune
Section montant is moved up and down in the longitudinally connected sleeve pipe.
Brief description of the drawings
Fig. 1 is schematic diagram when axially position line mn and circumferentially positioned line l is decorated with perforate pipeline；
Fig. 2 is the schematic front view of pipe platform；
Fig. 3 is that pipe platform is placed in schematic front view when on perforate pipeline；
Fig. 4 is placed in left view schematic diagram when on perforate pipeline for the pipe platform shown in Fig. 3；
Fig. 5 is to draw contour line l on perforate pipelineoWith line of cut lcWhen schematic diagram；
Fig. 6 is the structural representation of cutting torch supporting and regulating device；
Fig. 7 is the enlarged diagram of the I in Fig. 6；
Fig. 8 is installed to schematic diagram when on perforate pipeline for the cutting torch supporting and regulating device shown in Fig. 6.
Specific embodiment
Below, enter with reference to the cutting torch supporting and regulating device of Fig. 1-8 pairs of inventive pipeline cambered surface boring method and perforate
Row is described in detail.
Inventive pipeline cambered surface boring method comprises the following steps：
Step S1, according to design position of opening, perforate pipeline is measured on the outer surface of perforate pipeline 1 using measuring scale
The distance between 1 end face and perforate central point O, so as to mark the position of perforate central point O on the outer surface of perforate pipeline 1
Put, as shown in figure 1, and being drawn on the outer surface of perforate pipeline 1 by the axially position line mn of perforate central point O with circumference calmly
Bit line l.
Step S2, four anchor points a, b, c and d are marked on the bottom outer-edge of pipe platform 2 as shown in Figure 2, wherein, it is fixed
Line between site a and anchor point c is vertical with the line between anchor point b and anchor point c.
Step S3, as shown in Figures 3 and 4, pipe platform 2 is placed on perforate pipeline 1, and be located at anchor point a and anchor point c
On axis location line mn, make anchor point b and anchor point d be located at circumferentially positioned line l on, and along pipe platform 2 bottom outer-edge in perforate
The contour line l of pipe platform mounting hole is drawn on the outer surface of pipeline 1o, and anchor point a, b, c and d are in contour line loOn corresponding point
A', b', c' and d' are labeled as successively.
Step S4, pipe platform 2 is removed, as shown in figure 5, in contour line loUpper selection several profile points e, and by profile point e
S is offset to perforate central point O1Cut point e' is obtained, connecting two adjacent cut point e' using camber line forms line of cut lc.It is excellent
Selection of land, s1Span be 3-10mm, so both can be by line of cut lcWith contour line loSeparate, cutting can be avoided again
The pipe platform mounting hole of formation is excessive or too small, and influence pipe platform is installed.Line of cut l is marked on the outer surface of perforate pipeline 1cWith
Crosspoint A and B between axially position line mn, and crosspoint A and B are axially positioned line mn to perforate central point O skews s2
Two points are obtained as cutpoint an A' and B'.Preferably, s2Span be 10-20mm.So, cutting torch can be avoided directly to exist
The tube wall of perforate pipeline 1 is cut on line of cut and is caused the pipe platform mounting hole that cutting is formed excessive, influence pipe platform is installed.
In line of cut lcIt is upper that pre- rest point C and D is set, wherein, pre- rest point C has been close to cutpoint A', pre- rest point D and has been close to cutpoint B'.It is preferred that
Ground, pre- rest point C and the spacing risen between cutpoint A' and pre- rest point D and a cutpoint B' are 10-30mm.So, due to perforate pipeline 1
On cut-out and perforate pipeline 1 between remain in two connecting portions, therefore the cut-out on perforate pipeline 1 can be avoided from existing
Fallen from perforate pipeline 1 when cutting torch supporting and regulating device is not yet removed, to cutting torch supporting and regulating device and installed in cutting torch branch
Cutting torch in support adjusting means causes to damage.
Step S5, the installation cutting torch supporting and regulating device 3 on perforate pipeline 1.
As shown in Fig. 6,7 and 8, the cutting torch supporting and regulating device 3 includes rotary shaft 31, regulation montant 32 and regulation cross bar
33.Wherein, the lower end of rotary shaft 31 is arranged with fixes sleeve 34, and rotary shaft 31 can with fixes sleeve 34 in fixes sleeve 34
Relatively rotate；The upper end of rotary shaft 31 is provided with the first lateral adjustments being connected vertical with the connection end of regulation cross bar 33 and locks
Mechanism 35.The upper end for adjusting montant 32 is arranged with the longitudinally adjust retaining mechanism 36 that can be moved up and down along the regulation montant 32, and
The longitudinally adjust retaining mechanism 36 and the second lateral adjustments retaining mechanism 37 being connected with the support end of regulation cross bar 33 are fixed
Connection；The lower end for adjusting montant 32 is provided with the cutting torch fixture 38 for gripping cutting torch.First lateral adjustments retaining mechanism 35
Structure with the second lateral adjustments retaining mechanism 37 is identical, wherein, the first lateral adjustments retaining mechanism 35 is fixed by welding in
In rotary shaft 31, the second lateral adjustments retaining mechanism 37 is welded to connect integrally by contiguous block and longitudinally adjust retaining mechanism 36
Structure.Preferably, the first lateral adjustments retaining mechanism 35 and the second lateral adjustments retaining mechanism 37 include installing regulation cross bar 33
With connection support set 351,371 and the lateral adjustments locking member 352,372 that is locked is carried out to regulation cross bar 33.This
Sample, the connection end for adjusting cross bar 33 is located in connection support set 351 and is locked by horizontal locking member 352, and regulation is horizontal
The support end of bar 33 is located in connection support set 371 and is locked by horizontal locking member 372.Carried out to cut radius
During adjustment, only need to be to the first lateral adjustments locking mechanism 35 and/or the second lateral adjustments retaining mechanism 37 on regulation cross bar 33
Latched position be adjusted, it is simple to operate.Preferably, lateral adjustments are provided with connection support set 351 (371)
Hole (not shown), lateral adjustments locking member 352 (372) is contacted through lateral adjustments hole with regulation cross bar 33, and when laterally
Regulation locking member 352 (372) is compressed on when on regulation cross bar 33, and regulation cross bar 33 is locked in connection support set 351
(371) in.So, lateral adjustments locking member 352 (372) need to only be unscrewed, you can cut radius are adjusted, side simple to operate
Just.Preferably, it is provided with the lateral adjustments teeth groove 331 vertical with the axial direction of the regulation cross bar 33 on regulation cross bar 33；It is horizontal
To regulation locking member 352 (372) including regulating sleeve 3521 (3721) and in the lateral adjustments sleeve 3521 (3721)
Lateral adjustments swing arm 3522 (3722), wherein, be provided with the middle part of lateral adjustments sleeve 3521 (3721) lateral adjustments connection
Hole (not shown), and lateral adjustments sleeve 3521 (3721) at lateral adjustments hole with to be connected support set 351 (371) vertical
Connect and connected by lateral adjustments intercommunicating pore；Along the lateral adjustments swing arm 3522 on lateral adjustments swing arm 3522 (3722)
(3722) circumferential direction is provided with the lateral adjustments tooth (not shown) engaged with lateral adjustments teeth groove 331.In regulation
Cross bar 33 be located in connection support set 351 (371) in when, lateral adjustments swing arm 3522 (3722) and regulation cross bar 33 vertically and lead to
Lateral adjustments tooth and the engagement connection of lateral adjustments teeth groove 331 are crossed, so, operating personnel need to only screw lateral adjustments swing arm 3522
(3722) lateral adjustments swing arm 3522 (3722), is made to be rotated in lateral adjustments sleeve 3521 (3721), so that regulation cross bar
33 move in stop sleeve 351 (371) is connected, that is, complete the adjustment operation of cut radius, simple to operate.Certainly,
Can be using clip as the first lateral adjustments retaining mechanism and the second lateral adjustments retaining mechanism.Longitudinally adjust retaining mechanism 36
Including the longitudinally connected sleeve pipe 361 and longitudinally adjust locking member 362 that are set on regulation montant 32, and longitudinally connected sleeve pipe 361
On be provided with longitudinally adjust hole (not shown), longitudinally adjust locking member 362 connects through longitudinally adjust hole with montant 32 is adjusted
Touch, and when longitudinally adjust locking member 362 is compressed on regulation montant 32, regulation montant 32 is locked in longitudinally connected set
In pipe 361.So, longitudinally adjust locking member 362 need to only be unscrewed, you can regulation is moved up and down in longitudinally connected sleeve pipe 361 perpendicular
Bar 32, so that the regulation of the vertical distance between completing the outer surface of nozzle of cutting torch and perforate pipeline 1.Preferably, montant is adjusted
The longitudinally adjust teeth groove 321 vertical with the axial direction of the regulation montant 32 is provided with 32；Longitudinally adjust locking member 362 includes
Longitudinally adjust sleeve 3621 and the longitudinally adjust swing arm 3622 in the longitudinally adjust sleeve 3621, wherein, longitudinally adjust
The middle part of sleeve pipe 3621 is provided with longitudinally adjust intercommunicating pore (not shown), and longitudinally adjust sleeve 3621 in longitudinally adjust hole
Place is vertical with longitudinally connected sleeve pipe 361 to be connected and is connected by longitudinally adjust intercommunicating pore；It is vertical along this on longitudinally adjust swing arm 3622
The longitudinally adjust tooth engaged with longitudinally adjust teeth groove 321 is provided with to the circumferential direction of regulation swing arm 3622 (not show in figure
Go out).When regulation montant 32 is located in longitudinally connected sleeve pipe 361, longitudinally adjust swing arm 3622 and regulation montant 32 are vertical simultaneously
Connection is engaged by longitudinally adjust tooth and longitudinally adjust teeth groove 321.So, operating personnel need to only screw longitudinally adjust swing arm
3622, longitudinally adjust swing arm 3622 is rotated in longitudinally adjust sleeve 3621, and then make regulation montant 32 in longitudinally connected set
Moved up and down in pipe 361, complete the adjustment of the height of the regulation in the vertical direction of montant 32, that is, complete nozzle of cutting torch and tube having holes
The adjustment of the vertical distance between the outer surface in road 1, it is simple to operate.It is of course also possible to using clip as longitudinally adjust
Retaining mechanism.Bar 32 is vertical is connected with longitudinal direction adjustment by connecting rod 39 for cutting torch fixture 38, and connecting rod 39 is vertical with cross bar 33 is adjusted.
Cutting torch supporting and regulating device 3 is installed to perforate is carried out to pipeline cambered surface on perforate pipeline 1 when, cutting torch supporting and regulating device 3
In the vertical welding of fixes sleeve 34 be fixed on perforate pipeline 1, and fixes sleeve 34 central axis by perforate central point.
Preferably, fixed sleeving 34 is fixed on perforate pipeline 1 by spot-welded, so, can both ensure cutting torch support regulation dress
Putting 3 can be firmly secured on perforate pipeline 1, and welding capacity, convenient follow-up dismounting can be reduced again.
, first be placed in cutting torch 4 in cutting torch fixture 38, and clamped simultaneously by cutting torch fixture 38 by step S6, as seen in figs. 6 and 8
The position stabilization of nozzle of cutting torch 41 is kept, is rocked in cutting process and is influenceed cutting accuracy to avoid cutting torch from touching mouth 41.Then,
Adjust the locking position of the first lateral adjustments retaining mechanism 35 and/or the second lateral adjustments retaining mechanism 37 on regulation cross bar 33
Put, nozzle of cutting torch 41 is located at line of cut lcTop.Then, start cutting torch 4, rotate cutting torch supporting and regulating device 3 and adjust
Longitudinally adjust retaining mechanism 36, makes nozzle of cutting torch 41 and line of cut lcBetween vertical distance be maintained in the range of 15-25mm, make
Cutting torch 4 is along line of cut lcPerforate pipeline 1 is preheated.In warm, using infrared thermometer, thermoelectricity occasionally metal
The temperature measuring equipment such as tempilstick (not shown) enters monitoring to the temperature T on preheated zone surface, until the temperature T in preheated zone
When in the range of 150 DEG C -250 DEG C, cutting torch 4 is closed, stop preheating.
Step 7, using cutting torch 4 in two stages along line of cut lcWhen tube wall to perforate pipeline 1 cuts, specifically cut
Cut process as follows：
First stage：
First, rotate cutting torch supporting and regulating device 3 and adjust the first lateral adjustments retaining mechanism 35 and/or second and laterally adjust
Section retaining mechanism 37, makes nozzle of cutting torch 41 be located at the top of cutpoint A', and regulation longitudinally adjust retaining mechanism 36 makes nozzle of cutting torch
Vertical distance between 41 and the outer surface of perforate pipeline 1 is in the range of 3-5mm.Then, start cutting torch 4 and keep cutting torch to support
Adjusting means 3 is motionless, until perforate pipeline 1 is burnt in the tube wall risen at cutpoint A'.Then, cutting torch supporting and regulating device is rotated
3 and longitudinally adjust retaining mechanism 36 is adjusted, be maintained at the vertical distance between the outer surface of nozzle of cutting torch 41 and perforate pipeline 1
In the range of 3-5mm, make cutting torch 4 along line of cut lcTube wall to perforate pipeline 1 cuts, until being cut to pre- rest point D, closes
Cutting torch 4, stops cutting.
Second stage：
First, rotating cutting torch supporting and regulating device 3 makes nozzle of cutting torch 41 be located at the top of cutpoint B', adjusts longitudinally adjust
Retaining mechanism 36 makes the vertical distance between the outer surface of nozzle of cutting torch 41 and perforate pipeline 1 in the range of 3-5mm.Then, open
Dynamic cutting torch 4 simultaneously keeps cutting torch supporting and regulating device 3 motionless, until perforate pipeline 1 is burnt in the tube wall risen at cutpoint B'.So
Afterwards, rotate cutting torch supporting and regulating device 3 and adjust longitudinally adjust retaining mechanism 36, make nozzle of cutting torch 41 outer with perforate pipeline 1
Vertical distance between surface is maintained in the range of 3-5mm, makes cutting torch 4 along line of cut lcTube wall to perforate pipeline 1 is cut
Cut, until being cut to pre- rest point C, close cutting torch 4, stop cutting.
Step 8, dismounting cutting torch supporting and regulating device 3, and using man-hour manually hand-held cutting torch along line of cut lcRemainder is entered
Row cutting, until cutting is completed.
When being preheated and being cut, it is preferred to use oxy-acetylene cutter, and when being preheated, the acetylene of oxy-acetylene cutter
The span of pressure is 0.04-0.05MPa, and the span of oxygen pressure is 0.4-0.5MPa；When being cut, oxygen second
The span of the acetylene pressure of alkynes cutting torch is 0.06-0.07MPa, and the span of oxygen pressure is 0.6-0.7MPa.
Below, using above-mentioned boring method opened up on nuclear power station main steam line install a diameter of 8 " Guan Taiyong pipe
Platform mounting hole, concrete operations are as follows：
Step S1, according to design position of opening, the position of perforate central point O is marked on the outer surface of perforate pipeline 1,
And drawn on the outer surface of perforate pipeline 1 by the axially position line mn and circumferentially positioned line l of perforate central point O.
Step S2, four anchor points a, b, c and d are marked on the bottom outer-edge of pipe platform 2, wherein, anchor point a and positioning
Line between point c is vertical with the line between anchor point b and anchor point c.
Step S3, pipe platform 2 is placed on perforate pipeline 1, pipe platform mounting hole is drawn on the outer surface of perforate pipeline 1
Contour line lo, and anchor point a, b, c and d are in contour line loOn corresponding point successively be labeled as a', b', c' and d'.
Step S4, pipe platform 2 is removed, in contour line loIt is upper selection 16 Along ents as profile point e, and by profile point e to
Perforate central point O skews 5mm obtains cut point e', and connecting two adjacent cut point e' using camber line forms line of cut lc.
Line of cut l is marked on the outer surface of perforate pipeline 1cWith the crosspoint A and B between axially position line mn, and by crosspoint A and
B be axially positioned line mn to perforate central point O skew 15mm obtain two points as rise cutpoint an A' and B', and pre- rest point C with rise
Cutpoint A' and pre- rest point D and the spacing risen between cutpoint B' are 20mm.
Step S5, using spot-welded method by the lower end vertical welding of the fixes sleeve 34 in cutting torch supporting and regulating device 3
Connect and be fixed on perforate pipeline 1, and fixes sleeve 34 central axis by perforate central point O.
Step S6, the nozzle of cutting torch 41 of regulation cutting torch supporting and regulating device 3 are located at line of cut lcTop, start cutting torch 4 simultaneously
Regulation cutting torch supporting and regulating device 3 makes nozzle of cutting torch 41 and line of cut lcBetween vertical distance be maintained in the range of 15-25mm,
Along line of cut lcAnd apart from line of cut lcPerforate pipeline 1 is preheated in preheated zone in the range of the 30mm of both sides, and preheating
During monitoring is entered to the temperature T on preheated zone surface using infrared thermometer, when temperature T is in 150 DEG C of -250 DEG C of scopes
When interior, cutting torch 4 is closed, stop preheating.
Step 7, regulation cutting torch supporting and regulating device 3 make nozzle of cutting torch 41 be located at the top of cutpoint A' and with perforate pipeline
Vertical distance between 1 outer surface is maintained in the range of 3-5mm, is started cutting torch 4 and is kept cutting torch supporting and regulating device 3 not
It is dynamic, until perforate pipeline 1 is burnt in the tube wall risen at cutpoint A'；Regulation cutting torch supporting and regulating device 3, makes cutting torch 4 along cutting
Line lcTube wall to perforate pipeline 1 cuts, until being cut to pre- rest point D, closes cutting torch 4, stops cutting；
Regulation cutting torch supporting and regulating device 3 make nozzle of cutting torch 41 be located at the top of cutpoint B' and with the appearance of perforate pipeline
Vertical distance between face is maintained in the range of 3-5mm, is started cutting torch 4 and is kept cutting torch supporting and regulating device 3 motionless, until opening
Hole pipeline 1 is burnt in the tube wall risen at cutpoint B'；Adjustment cutting torch supporting and regulating device 3, makes cutting torch 4 along line of cut lcTo perforate
The tube wall of pipeline 1 is cut, until being cut to pre- rest point C, closes cutting torch 4, stops cutting
Step 8, dismounting cutting torch supporting and regulating device 3, and using man-hour manually hand-held cutting torch along line of cut lcRemainder is entered
Row cutting, until cutting is completed.
Claims (10)
1. a kind of pipeline cambered surface boring method, it is characterised in that the pipeline cambered surface boring method comprises the following steps：
Step S1, according to design position of opening, measurement draws perforate central point O on the outer surface of the perforate pipeline, and draws
Go out by the axially position line mn and circumferentially positioned line l of the perforate central point O；
Step S2, four anchor points a, b, c and d are marked on the bottom outer-edge of pipe platform, and between anchor point a and anchor point c
Line it is vertical with the line between anchor point b and anchor point c；
Step S3, the pipe platform is placed on the perforate pipeline, and it is described to be located at the anchor point a and anchor point c
On axis location line mn, the anchor point b and anchor point d is set to be located on the circumferentially positioned line l, and along the pipe platform
Bottom outer-edge draws the contour line l of pipe platform mounting hole on the outer surface of the perforate pipelineo；
Step S4, the pipe platform is removed, in the contour line loUpper several profile points of selection, and the profile point opens to described
Central point of hole O offsets s1Cut point is obtained, two adjacent cut point camber lines connect to form line of cut lc；Mark the cutting
Line lcWith the crosspoint A and B between the axially position line mn, and the crosspoint A and B along the axially position line mn to institute
State perforate central point O skews s2Cutpoint A' and B' have been obtained, and in the line of cut lcIt is upper that pre- rest point C and D is set and described pre-
Rest point C plays cutpoint B' near the cutpoint A', the pre- rest point D of rising near described；
Step S5, by cutting torch supporting and regulating device be arranged on the perforate pipeline on, the cutting torch supporting and regulating device include turn
Moving axis, regulation montant and regulation cross bar, the lower end of the rotary shaft is arranged with fixes sleeve and the rotary shaft and the fixation
Sleeve can be relatively rotated, and the upper end of the rotary shaft is provided with the first lateral adjustments retaining mechanism；The upper end of the regulation montant
Longitudinally adjust retaining mechanism is arranged with, the longitudinally adjust retaining mechanism can be moved up and down along the regulation montant, and the longitudinal direction
Regulation retaining mechanism is fixedly connected with the second lateral adjustments retaining mechanism, and the lower end of the regulation montant is provided with clamping cutting torch and uses
Cutting torch fixture；The connection end of the regulation cross bar is located in the connection support set in the first lateral adjustments retaining mechanism
In, and be locked by the lateral adjustments locking member being arranged on the connection support set, the support end of the regulation cross bar
It is located in the connection support set in the second lateral adjustments retaining mechanism, and by being arranged on the connection support set
Lateral adjustments locking member is locked；The fixes sleeve vertical welding in the cutting torch supporting and regulating device is fixed on described
On perforate pipeline, and the fixes sleeve central axis by the perforate central point O；
Step S6, cutting torch is clamped in the cutting torch fixture, and adjusts the first lateral adjustments retaining mechanism and/or described
Locked position of the second lateral adjustments retaining mechanism on the regulation cross bar, makes nozzle of cutting torch be located at the line of cut lcIt is upper
Side；Start the cutting torch, rotate the cutting torch supporting and regulating device and adjust the longitudinally adjust retaining mechanism, make the cutting torch
Nozzle and the line of cut lcBetween vertical distance be maintained in the range of 15-25mm, make the cutting torch along the line of cut lcIt is right
The perforate pipeline is preheated, and enters monitoring to the temperature T on preheated zone surface using temperature measuring equipment in warm, until
Temperature T is in when in the range of 150 DEG C -250 DEG C, closes the cutting torch, stops preheating；
Step 7, the rotation cutting torch supporting and regulating device simultaneously adjust the lateral adjustments retaining mechanism, make the nozzle of cutting torch position
The top of cutpoint A' in described, adjusting the longitudinally adjust retaining mechanism makes the nozzle of cutting torch outer with the perforate pipeline
Vertical distance between surface is in the range of 3-5mm；Start the cutting torch and keep the cutting torch supporting and regulating device motionless, directly
Burnt to tube wall of the perforate pipeline at described cutpoint A'；Rotate the cutting torch supporting and regulating device and adjust described
Longitudinally adjust retaining mechanism, makes the vertical distance between the outer surface of the nozzle of cutting torch and the perforate pipeline be maintained at 3-
In the range of 5mm, make the cutting torch along the line of cut lcTube wall to the perforate pipeline cuts, until being cut to described
Pre- rest point D, closes the cutting torch, stops cutting；
Rotating the cutting torch supporting and regulating device makes the nozzle of cutting torch be located at the top of cutpoint B', adjusts the longitudinally adjust
Retaining mechanism makes the vertical distance between the outer surface of the nozzle of cutting torch and the perforate pipeline in the range of 3-5mm；Start
The cutting torch simultaneously keeps the cutting torch supporting and regulating device motionless, until the perforate pipeline is burnt in the tube wall risen at cutpoint B'
Wear；Rotate the cutting torch supporting and regulating device and adjust the longitudinally adjust retaining mechanism, the nozzle of cutting torch is opened with described
Vertical distance between the outer surface of hole pipeline is maintained in the range of 3-5mm, makes the cutting torch along the line of cut lcTo described
The tube wall of perforate pipeline is cut, until being cut to the pre- rest point C, closes the cutting torch, stops cutting；
Step 8, the dismounting cutting torch supporting and regulating device, cutting torch is along line of cut l described in man-hour manually hand-heldcRemainder is cut
Cut, until cutting is completed.
2. pipeline cambered surface boring method according to claim 1, it is characterised in that in the step S4, s1Value model
It is 3-10mm to enclose, s2Span for 10-20mm, the pre- rest point C and described cutpoint A' and the pre- rest point D with it is described
It is 10-30mm to play the spacing between cutpoint B'.
3. pipeline cambered surface boring method according to claim 2, it is characterised in that choose the contour line loOn 16
Along ent is used as profile point.
4. the pipeline cambered surface boring method according to any one in claim 1-3, it is characterised in that horizontal described first
In to regulation retaining mechanism and the second lateral adjustments retaining mechanism, lateral adjustments hole is provided with the connection support set,
The lateral adjustments locking member is through the lateral adjustments pore pressure system and locks the regulation cross bar；
The longitudinally adjust retaining mechanism includes the longitudinally connected sleeve pipe and the longitudinally adjust locking that are set on the regulation montant
Part, is provided with longitudinally adjust hole, and the longitudinally adjust locking member through the longitudinally adjust pore pressure on the longitudinally connected sleeve pipe
Make and lock the regulation montant.
5. pipeline cambered surface boring method according to claim 4, it is characterised in that be provided with and this on the regulation cross bar
Adjust the vertical lateral adjustments teeth groove of the axial direction of cross bar；The lateral adjustments locking member includes lateral adjustments sleeve and installation
Lateral adjustments swing arm in the lateral adjustments sleeve, the lateral adjustments sleeve at the lateral adjustments hole with the connection
Support set is vertically connected, and lateral adjustments tooth is provided with the lateral adjustments swing arm；The lateral adjustments swing arm and the regulation
Cross bar vertically and by the lateral adjustments tooth is connected with the regulation teeth groove engagement, and when the lateral adjustments swing arm is described
When being rotated in lateral adjustments sleeve, the regulation cross bar is moved in the connection support set；
The longitudinally adjust teeth groove vertical with the axial direction of the regulation montant is provided with the regulation montant；The longitudinally adjust
Locking member includes longitudinally adjust sleeve and the longitudinally adjust swing arm in the longitudinally adjust sleeve, the longitudinally adjust sleeve
It is vertical with the longitudinally connected sleeve pipe at the longitudinally adjust hole to be connected, it is provided with longitudinally adjust on the longitudinally adjust swing arm
Tooth；The longitudinally adjust swing arm and the regulation montant vertically and by the longitudinally adjust tooth and the longitudinally adjust teeth groove are nibbled
Connection is closed, and when the longitudinally adjust swing arm is rotated in the longitudinally adjust sleeve, the regulation montant is in the longitudinal direction
Moved up and down in connection sleeve pipe.
6. the pipeline cambered surface boring method according to any one in claim 1-3, it is characterised in that the cutting torch is selected
Oxy-acetylene cutter, when being preheated, the span of the acetylene pressure of the oxy-acetylene cutter is 0.04-0.05MPa, oxygen
The span of pressure is 0.4-0.5MPa；When being cut, the span of the acetylene pressure of the oxy-acetylene cutter is
0.06-0.07MPa, the span of oxygen pressure is 0.6-0.7MPa.
7. the pipeline cambered surface boring method according to any one in claim 1-3, it is characterised in that in the step 6
In, the temperature measuring equipment is infrared thermometer, thermoelectricity occasionally metal tempilstick.
8. a kind of cutting torch supporting and regulating device of pipeline cambered surface perforate, it is characterised in that the cutting torch supporting and regulating device includes
Rotary shaft, regulation montant and regulation cross bar, the lower end of the rotary shaft is arranged with fixes sleeve and the rotary shaft is solid with described
Determining sleeve can relatively rotate, and the upper end of the rotary shaft is provided with the first lateral adjustments retaining mechanism；It is described to adjust the upper of montant
End is arranged with longitudinally adjust retaining mechanism, and the longitudinally adjust retaining mechanism can be moved up and down along the regulation montant, and described vertical
It is fixedly connected with the second lateral adjustments retaining mechanism to regulation retaining mechanism, the lower end of the regulation montant is provided with clamping cutting torch
Cutting torch fixture；The connection end of the regulation cross bar is located in the connection support set in the first lateral adjustments retaining mechanism
In, and be locked by the lateral adjustments locking member being arranged on the connection support set, the support end of the regulation cross bar
It is located in the connection support set in the second lateral adjustments retaining mechanism, and by being arranged on the connection support set
Lateral adjustments locking member is locked；When in use, the fixes sleeve vertical welding in the cutting torch supporting and regulating device
Be fixed on perforate pipeline, and the fixes sleeve central axis by perforate central point.
9. the cutting torch supporting and regulating device of pipeline cambered surface perforate according to claim 8, it is characterised in that described
In one lateral adjustments retaining mechanism and the second lateral adjustments retaining mechanism, lateral adjustments are set on the connection support set
Hole, the lateral adjustments locking member is through the lateral adjustments pore pressure system and locks the regulation cross bar；
The longitudinally adjust retaining mechanism includes the longitudinally connected sleeve pipe and the longitudinally adjust locking that are set on the regulation montant
Part, is provided with longitudinally adjust hole, and the longitudinally adjust locking member through the longitudinally adjust pore pressure on the longitudinally connected sleeve pipe
Make and lock the regulation montant.
10. the cutting torch supporting and regulating device of pipeline cambered surface perforate according to claim 9, it is characterised in that the tune
The lateral adjustments teeth groove vertical with the axial direction of the regulation cross bar is provided with section cross bar；The lateral adjustments locking member includes
Lateral adjustments sleeve and the lateral adjustments swing arm in the lateral adjustments sleeve, the lateral adjustments sleeve is in the transverse direction
Support set is vertical connects with the connection at adjustment hole, and lateral adjustments tooth is provided with the lateral adjustments swing arm；The transverse direction
Regulation swing arm and the regulation cross bar vertically and by the lateral adjustments tooth are connected with the regulation teeth groove engagement, and when described
When lateral adjustments swing arm is rotated in the lateral adjustments sleeve, the regulation cross bar is moved in the connection support set；
The longitudinally adjust teeth groove vertical with the axial direction of the regulation montant is provided with the regulation montant；The longitudinally adjust
Locking member includes longitudinally adjust sleeve and the longitudinally adjust swing arm in the longitudinally adjust sleeve, the longitudinally adjust sleeve
It is vertical with the longitudinally connected sleeve pipe at the longitudinally adjust hole to be connected, it is provided with longitudinally adjust on the longitudinally adjust swing arm
Tooth；The longitudinally adjust swing arm and the regulation montant vertically and by the longitudinally adjust tooth and the longitudinally adjust teeth groove are nibbled
Connection is closed, and when the longitudinally adjust swing arm is rotated in the longitudinally adjust sleeve, the regulation montant is in the longitudinal direction
Moved up and down in connection sleeve pipe.
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| CN201710035931.9A CN106862710B (en) | 2017-01-17 | 2017-01-17 | A kind of pipeline cambered surface boring method and the cutting torch supporting and regulating device of aperture |
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|---|---|---|---|
| CN201710035931.9A CN106862710B (en) | 2017-01-17 | 2017-01-17 | A kind of pipeline cambered surface boring method and the cutting torch supporting and regulating device of aperture |
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| CN107813085A (en) * | 2017-10-31 | 2018-03-20 | 湘潭大学 | A kind of pipe pipe welding welding-gun rotates axial rake self-adaption regulation system |
| CN107813280A (en) * | 2017-12-13 | 2018-03-20 | 鲁东大学 | A kind of line of cut design aids for bottle art cutting |
| CN108131960A (en) * | 2017-12-15 | 2018-06-08 | 成都光明光电股份有限公司 | Thermometry in combined type temperature measuring rack and heat-treatment furnace |
| CN109894715A (en) * | 2019-03-25 | 2019-06-18 | 益阳益橡传动机械有限公司 | A kind of fan blade cutting machine |
| CN110238484A (en) * | 2019-06-06 | 2019-09-17 | 五冶集团上海有限公司 | A kind of method that online gas piping snaps interface |
| CN111438420A (en) * | 2020-04-17 | 2020-07-24 | 中船黄埔文冲船舶有限公司 | A trompil device for spending pipe on trunk line |
| CN111805067A (en) * | 2020-07-29 | 2020-10-23 | 上海宝冶建筑工程有限公司 | Portable arc cutting tool |
| CN114523174A (en) * | 2022-03-15 | 2022-05-24 | 广西桂通工程管理集团有限公司 | Method for improving flame cutting blanking precision of steel tube arch rib cylindrical shell section base metal steel plate |
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| CN107813085A (en) * | 2017-10-31 | 2018-03-20 | 湘潭大学 | A kind of pipe pipe welding welding-gun rotates axial rake self-adaption regulation system |
| CN107813085B (en) * | 2017-10-31 | 2019-05-07 | 湘潭大学 | A kind of pipe pipe welding welding-gun rotation axial rake self-adaption regulation system |
| CN107813280A (en) * | 2017-12-13 | 2018-03-20 | 鲁东大学 | A kind of line of cut design aids for bottle art cutting |
| CN107813280B (en) * | 2017-12-13 | 2023-09-05 | 鲁东大学 | Cutting line aided design tool for artistic cutting of bottles |
| CN108131960A (en) * | 2017-12-15 | 2018-06-08 | 成都光明光电股份有限公司 | Thermometry in combined type temperature measuring rack and heat-treatment furnace |
| CN109894715A (en) * | 2019-03-25 | 2019-06-18 | 益阳益橡传动机械有限公司 | A kind of fan blade cutting machine |
| CN110238484A (en) * | 2019-06-06 | 2019-09-17 | 五冶集团上海有限公司 | A kind of method that online gas piping snaps interface |
| CN111438420A (en) * | 2020-04-17 | 2020-07-24 | 中船黄埔文冲船舶有限公司 | A trompil device for spending pipe on trunk line |
| CN111805067A (en) * | 2020-07-29 | 2020-10-23 | 上海宝冶建筑工程有限公司 | Portable arc cutting tool |
| CN114523174A (en) * | 2022-03-15 | 2022-05-24 | 广西桂通工程管理集团有限公司 | Method for improving flame cutting blanking precision of steel tube arch rib cylindrical shell section base metal steel plate |
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