CN106626414A - Helical corrugated pipeline flexible socket type connecting technique - Google Patents
Helical corrugated pipeline flexible socket type connecting technique Download PDFInfo
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- CN106626414A CN106626414A CN201710010335.5A CN201710010335A CN106626414A CN 106626414 A CN106626414 A CN 106626414A CN 201710010335 A CN201710010335 A CN 201710010335A CN 106626414 A CN106626414 A CN 106626414A
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- Prior art keywords
- joint
- shape pipeline
- helical corrugation
- corrugation shape
- periphery
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
- B29C65/54—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/022—Mechanical pre-treatments, e.g. reshaping
- B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
- B29C66/02241—Cutting, e.g. by using waterjets, or sawing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/024—Thermal pre-treatments
- B29C66/0242—Heating, or preheating, e.g. drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/03—After-treatments in the joint area
- B29C66/034—Thermal after-treatments
- B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
- B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
- B29C66/53245—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow
- B29C66/53246—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention provides a helical corrugated pipeline flexible socket type connecting technique and belongs to the technical field of machinery. The invention aims at solving the problems that an existing helical corrugated pipeline is difficult to connect during construction and leakage can be easily caused. In the helical corrugated pipeline flexible socket type connecting technique, a fixed end used for fixing a joint with a pipe body is arranged on a male joint and a female joint respectively, each fixed end comprises a benchmark part and an inserting part which are tubular respectively, the outer diameter of the inserting part is smaller than that of the benchmark part, and the inserting part is inserted into the pipe body by virtue of interference fit. The helical corrugated pipeline flexible socket type connecting technique concretely comprises the following steps: a, loading the pipe body; b, loading the joints; c, processing the outer wall of the pipe body; d, preheating the helical corrugated pipeline; e, coating hot melt glue; f, cooling the helical corrugated pipeline; and g, blanking the helical corrugated pipeline. The technique provided by the invention realizes pre-connection between the pipe body of the helical corrugated pipeline and the joint, so that the helical corrugated pipeline is flexibly connected in a socket manner directly during the construction, the construction difficulty is reduced, and the problem that water seepage appears at the joint is avoided.
Description
Technical field
The invention belongs to field of mechanical technique, is related to a kind of helical corrugation shape pipeline flexible bayonet joint technique.
Background technology
Helical corrugation shape pipeline is a kind of periphery helically corrugated tubing.In being applied to the facilities such as draining, blowdown
Helical corrugation shape pipeline, generally made using nonmetallic materials such as plastics, rubber.In order to increase intensity, some helical corrugations
Also metal structure can be increased in shape pipeline, for example, steel band bellows, by being added using metal material and the compound of nonmetallic materials
Work, on the premise of cost is not increased, greatly improves the intensity of helical corrugation shape pipeline.Helical corrugation shape pipeline has weight
Gently, the advantages of high pressure resistant, good toughness, fast construction, life-span length.
During construction, the connected mode of adjacent two helical corrugations shape pipeline mainly has：Electric thermal smelting belt connection, socket joint electric heating melting
Connection, shrink belt connection and stainless steel lathe dog connection, wherein Electric thermal smelting belt connection, socket joint electric melting connection and shrink belt connect
Connect, when connecting adjacent two helical corrugations shape pipeline in construction, be required for entering junction by special electric heating equipment
Row heating, execution conditions requirement is higher, and the rainy day cannot construct, and energy consumption is higher.The quality of connection of above-mentioned connected mode
It is not high, specifically, connected using Electric thermal smelting belt, junction is not firm, seepage easy to crack；Applied using socket joint electric melting connection
Work condition is limited, and wayward, difficulty of construction is big；Connected using shrink belt, all connections are and are rigidly connected, by soil not
Uniform settlement affects, easy drawing crack；Connected using stainless steel lathe dog, the pipe-line system climate condition after connection is expanded with heat and contract with cold shadow
Ring, it is easy to crack.
Due to being limited by the spiral wave shape structure of helical corrugation shape pipeline periphery, it is difficult in the connection of body two ends
Separately formed joint, and using existing connected mode, for example, be all unable to reach weld in body end or inwall
Preferable bonding strength.
The content of the invention
The purpose of the present invention is there are the problems referred to above for existing technology, it is proposed that a kind of helical corrugation shape pipeline flexible
Bayonet joint technique, present invention solves the technical problem that being how separately formed joint to be strongly attached to into helical corrugation
On the body of shape pipeline.
The purpose of the present invention can be realized by following technical proposal：A kind of helical corrugation shape pipeline flexible bayonet joint
Technique, the helical corrugation shape pipeline includes body and joint, and the joint is fixedly attached to body end, it is characterised in that
There is the fixing end for joint and body to be fixed, the fixing end includes tubular reference section and inserts on the joint
Socket part, the external diameter of the Plug Division makes Plug Division be plugged on body, the benchmark by interference fit less than the external diameter of reference section
The periphery in portion is solder side one, and this helical corrugation shape pipeline flexible bayonet joint technique is comprised the following steps：
A, body feeding：According to production requirement length intercept body, by body rotationally clamping on support；
B, joint feeding：Clamping connector makes Plug Division just to body end, promotes joint by the insertion tube body of Plug Division；
C, processing tube wall：Remove the crest on the periphery of body end and form solder side two, solder side two and welding
The difference in height in face one is≤1mm, the periphery of body is substantially flush with the periphery of reference section；
D, preheat helical corrugation shape pipeline：Helical corrugation shape pipeline is heated, the connection of body and Plug Division is made
Place's temperature rises to 120 DEG C～180 DEG C；
E, cladding PUR：Helical corrugation shape pipeline is rotated, while being heated thawing to extrusion between body and reference section
PUR, makes PUR cover the junction of body and joint, flattens body and the PUR in reference section, makes PUR to two
Side extends and is completely covered solder side one and solder side two；
F, cooling spiral corrugated pipeline：Stop heating coil corrugated pipeline, and place until cooling；
G, helical corrugation shape pipeline blanking：The clamping to body is released, helical corrugation shape pipeline is removed.
This helical corrugation shape pipeline flexible bayonet joint technique is used for separately formed weld to helical corrugation
On the body of shape pipeline, one end of joint is connection end, and because joint is separately formed, connection end can make the bigger knot of intensity
Structure.Used as the fixing end for being connected with body, the outer end of fixing end is Plug Division to the other end of joint, on the basis of the inner.
Before body and weld, by Plug Division insert body and with body interference fit so that body and joint form positioning.And
And, make reference section just right with body periphery, so formed to removing the crest on the periphery of body end in next operation
Reference, the size for making body end periphery is easier directly observation.Helical corrugation shape pipeline is preheated again so that pipe
The temperature of body and joint rises, and body and joint itself will not be deformed upon because being heated.Then pass through rotation spiral
Corrugated pipeline, and the PUR of thawing is extruded, because body and joint have heat, PUR will not solidify to the cold rapidly,
By extrude PUR can PUR preferably to both sides extend, until be completely covered on after being driven plain solder side one and welding
On face two, fixed effect is more preferable.Because the periphery of helical corrugation shape pipeline is substantially flush with the periphery of reference section, solder side
One and solder side two on PUR easily flatten, weld is also more smooth.After cooling, PUR is by body and joint
It is fixed as one, finally carries out finished product blanking.
This helical corrugation shape pipeline flexible bayonet joint technique by the way that joint first to carry out grafting, then by removing body
Crest on the periphery of end, makes the space that can be welded suitable for PUR in periphery formation between joint and body, gram
Existing body is taken and weld can only be in end or the limitation of inwall.By carrying out pre-add to helical corrugation shape pipeline
Heat so that PUR welding process is all carried out at a suitable temperature, it is ensured that PUR can be uniformly distributed in welding position,
Improve welding quality so that the body of helical corrugation shape pipeline and joint connection are more firm.
Preferably, in above-mentioned helical corrugation shape pipeline flexible bayonet joint technique, it is described in step b
After in the Plug Division insertion tube body of joint, the gap between the end face of the reference section and the end face of body is 1mm～5mm.
In welding process, in the gap between the pressurized end face that can enter into reference section of PUR and the end face of body, and to two
End face plays connection function, so as to further increase the bonding strength of body and joint.
Preferably, in above-mentioned helical corrugation shape pipeline flexible bayonet joint technique, in step b, will connect
Power in the insertion end insertion body of head is from cylinder or hydraulic cylinder.Mating force, power are applied by cylinder or hydraulic cylinder
Size and Orientation be easier to be precisely controlled, it is to avoid mating force is excessive or slotting local derviation causes body and joint distortion, damage.
As the first processing mode, in above-mentioned helical corrugation shape pipeline flexible bayonet joint technique, the step
In rapid c, using milling cutter the crest on body periphery is removed along body circumferential movement.Wave crest portions are removed by milling cutter
Material, working (machining) efficiency is higher, especially for the metal material at crest.
As second processing mode, in above-mentioned helical corrugation shape pipeline flexible bayonet joint technique, the step
In rapid c, tube wall is processed using lathe tool, body is rotated in process, lathe tool is at the uniform velocity fed the ripple on body periphery
Peak is removed.Processed by lathe tool, it is only necessary to fix lathe tool, body is rotated can make lathe tool cut crest relative to pipe body movement
The material at place.
As the third processing mode, in above-mentioned helical corrugation shape pipeline flexible bayonet joint technique, the step
In rapid c, the crest on the periphery of body end is polished using file or sand paper.The mode of this artificial removal's crest material
Advantage is that manufacturing cost is relatively low.
Preferably, in above-mentioned helical corrugation shape pipeline flexible bayonet joint technique, in step d, body
The uniform rotation in heating process, the fixed position of heating location 5mm～10mm below body.This mode of heating, can
Body and joint temperature is set to rapidly rise to design temperature, heating effect is more preferable；And heater only needs to arrange
In lower section, without the need for encasing body completely, heat more convenient.
As the first preferred version, in above-mentioned helical corrugation shape pipeline flexible bayonet joint technique, the step
In rapid b, before joint and body connection, in addition it is also necessary to polish body end face；Before step e, will be with body using welding gun
The welding rod of identical material is circumferentially injected between the end face of body and the end face of reference section.Using the end of identical material butt joint
The end face of face and body is welded so that joint and body is stronger links together, and after PUR welding energy
The weld seam of the welding is enough covered, has both been avoided that weld seam is damaged by corrosion, it is also possible to so that the welding position of periphery is more smooth.
As second preferred version, in above-mentioned helical corrugation shape pipeline flexible bayonet joint technique, the step
In rapid b, before joint and body grafting, on Plug Division surface glue is uniformly coated.During grafting, joint and body are completed
The further reinforcement of bonding strength.
It is described to connect in above-mentioned helical corrugation shape pipeline flexible bayonet joint technique as the third preferred version
Also there is at least one annular groove on the Plug Division periphery of head, rubber weather strip, institute are provided with the annular groove
In stating step b, before joint and body grafting, lubricant is applied on rubber weather strip.Cause to connect by arranging rubber seal
Head and body grafting are more firm, and can reduce the medium in body and be seeped into corrosion at welding position by internal gap
Welding material.
Preferably, in above-mentioned helical corrugation shape pipeline flexible bayonet joint technique, the outer wall of the Plug Division
For incline structure.So that Plug Division is easier to insert into tubular body.
Compared with prior art, the advantage of this helical corrugation shape pipeline flexible bayonet joint technique is：
1st, the crest that this helical corrugation shape pipeline flexible bayonet joint technique passes through removal body end periphery, in pipe
The solder side one that the periphery of body is formed on solder side two, with joint reference section forms welding region, inserts joint during welding
Body, by covering PUR on welding region, body and weld is integrated, and the connection of body and joint is more firm
Gu.
2nd, this helical corrugation shape pipeline flexible bayonet joint technique carries out before welding pre- to helical corrugation shape pipeline
Heating, and make weld keep suitable temperature, the PUR on to welding region to extrude in welding process, make heat
The scope and reference section that melten gel is smoothed along body extends to both sides, is finally driven plain, and further strengthens bonding strength, and makes
Obtain weld more smooth.
3rd, this helical corrugation shape pipeline flexible bayonet joint technique causes helical corrugation shape pipeline in the plant produced stage
It is capable of achieving and the connection of joint, in work progress, the direct socket joint connection of adjacent two helical corrugations shape pipeline, construction is more
Convenient, reduction of erection time, the better tightness of junction prevents junction from seepage occurring.
4th, this helical corrugation shape pipeline flexible bayonet joint technique cause helical corrugation shape pipeline in work progress not
Junction need to be heated using electric heating equipment, the needs of all-weather construction can be met.Also, reduce to electric energy
Consume, more energy-conserving and environment-protective.
Description of the drawings
Fig. 1 is the inside connection of the helical corrugation shape pipeline of this helical corrugation shape pipeline flexible bayonet joint technique manufacture
Structural representation.
Fig. 2 is the partial enlarged drawing in Fig. 1 at A.
In figure, 1, body；11st, crest；12nd, solder side two；2nd, joint；21st, connection end；22nd, fixing end；221st, benchmark
Portion；222nd, Plug Division；223rd, solder side one；3rd, PUR.
Specific embodiment
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
Embodiment one：
Helical corrugation shape pipeline in this helical corrugation shape pipeline flexible bayonet joint technique includes body 1 and joint 2,
Joint 2 is fixedly attached to the end of body 1, and the outer end of joint 2 is connection end 21.With the helical corrugation shape pipeline that there is joint 2 at two ends
As a example by, as shown in figure 1, the connection end 21 of joint 2 that the one end of body 1 is fixedly connected is public access mouth, what the other end was fixedly connected connects
2 connection end 21 is maternal interface.During the pipe laying of helical corrugation shape pipeline, connect adjacent by the joint 2 at the two ends of body 1
Two helical corrugation shape pipelines.In order to joint 2 is fixedly attached on body 1, the inner of joint 2 is fixing end 22, fixing end
22 include tubular reference section 221 and Plug Division 222, and the external diameter of Plug Division 222 is less than the external diameter of reference section 221, grafting
Portion 222 is plugged on body 1 by interference fit, and the periphery of reference section 221 is solder side 1.
Body 1 in this helical corrugation shape pipeline flexible bayonet joint technique can be using Wrapping formed, the joint 2 of extrusion
With separately formed, for example with injection mo(u)lding, then joint 2 can be welded on the body 1 of helical corrugation shape pipeline, due to joint
2 is separately formed, and connection end 21 can make the bigger structure of intensity, it is to avoid joint 2 is affected by long-term scraping with external impact
And damage.
Specifically, this helical corrugation shape pipeline flexible bayonet joint technique is comprised the following steps：
A, body feeding：According to production requirement length intercept body 1, by body 1 rotationally clamping on support.
The length of body 1 can arbitrarily be chosen so that the length of helical corrugation shape pipeline is more flexible, facilitates pipe laying.
B, joint feeding：Clamping connector 2 makes Plug Division 222 just to the end of body 1, promotes joint 2 to insert Plug Division 222
In body 1.Preferably, for convenience Plug Division 222 is inserted, and the outer wall of Plug Division 222 is incline structure.By joint 2
Insertion end insertion body 1 in power from cylinder or hydraulic cylinder.Mating force is applied by cylinder or hydraulic cylinder, power
Size and Orientation is easier to be precisely controlled, it is to avoid mating force is excessive or slotting local derviation causes body 1 and joint 2 to deform, damage.
Preferably, after in the insertion of Plug Division 222 body 1 of joint 2, end face and the body 1 of reference section 221
Gap between end face is 1mm～5mm.
Plug Division 222 insert body 1 and with the interference fit of body 1 so that body 1 and joint 2 form positioning.Also, make
Reference section 221 is just right with the periphery of body 1, so to removing the shape of crest 11 on the end periphery of body 1 in next operation
Into reference, the size for making the end periphery of body 1 is easier directly observation.
C, processing tube wall：The crest 11 removed on the end periphery of body 1 forms solder side 2 12, solder side 2 12
It is 1mm with the difference in height of solder side 1, the periphery and the periphery of reference section 221 for making body 1 is substantially flush.
In the present embodiment, using milling cutter the crest 11 on the periphery of body 1 is removed along the circumferential movement of body 1.Pass through
Milling cutter removes the material of the part of crest 11, and working (machining) efficiency is higher, especially for the metal material at crest 11.Add in actual
During work, solder side 2 12 is also less than 1mm with the difference in height of solder side 1.
D, preheat helical corrugation shape pipeline：Helical corrugation shape pipeline is heated, body 1 and Plug Division 222 is made
Junction temperature rises to 120 DEG C～180 DEG C.The temperature of body 1 and the junction of joint 2 rises, and body 1 and joint 2 itself
Will not deform upon because being heated.Preferably, the uniform rotation in heating process of body 1, heating location is below body 1
The fixed position of 5mm～10mm.This mode of heating, can make body 1 and the junction temperature of joint 2 rapidly rise to setting temperature
Degree, heating effect is more preferable；And heater only needs to be arranged below, without the need for encasing body 1 completely, heat more convenient.
E, cladding PUR：Helical corrugation shape pipeline is rotated, while be heated to extrusion between body 1 and reference section 221 melting
The PUR 3 of change, makes PUR 3 cover the junction of body 1 and joint 2, flattens body 1 and the PUR in reference section 221
3, PUR 3 is made along solder side 1 and solder side 2 12 are extended and be completely covered to both sides.
Because body 1 and joint 2 have heat, PUR 3 will not solidify to the cold rapidly, can by extruding PUR 3
PUR 3 preferably extends to both sides, and covers the part being smoothed on reference section 221 and body 1, as shown in Figure 2.Due to spiral shell
The periphery of rotation corrugated pipeline is substantially flush with the outer wall of reference section 221, and PUR 3 is easily flattened, and weld is also more
It is smooth.Due to having gap between the end face of reference section 221 and the end face of body 1, in welding process, PUR 3 is pressurized can
In the gap entered between the end face of reference section 221 and the end face of body 1, and connection function is played to two end faces, so as to
Further increase the bonding strength of body 1 and joint 2.
F, cooling spiral corrugated pipeline：Stop heating coil corrugated pipeline, and place until cooling.
G, helical corrugation shape pipeline blanking：The clamping to body 1 is released, helical corrugation shape pipeline is removed.
This helical corrugation shape pipeline flexible bayonet joint technique by the way that joint 2 first to carry out grafting, then by removing pipe
Crest 11 on the end periphery of body 1, makes to be formed suitable for the welding of PUR 3 in periphery between joint 2 and body 1
Space, overcomes existing body 1 and the welding of joint 2 can only be in end or the limitation of inwall.Welded in periphery, with
End welding is compared, and weld strength is higher；Compared with inwall welding, pad is easier directly to observe, and welding is simple, welding matter
Amount is preferable.Also, by preheating to helical corrugation shape pipeline so that the welding process of PUR 3 is all in suitable temperature
Under carry out, it is ensured that PUR 3 can be uniformly distributed in welding position, improve welding quality.
Embodiment two：
Technical scheme in the present embodiment is essentially identical with the technical scheme in embodiment one, and difference is, this reality
In applying example, in step c, the outer wall of body 1 is processed using lathe tool, body 1 is rotated in process, lathe tool is at the uniform velocity fed body 1
Crest 11 on periphery is removed.By lathe tool process, it is only necessary to lathe tool is fixed, body 1 rotate can make lathe tool relative to
Material at the motion cutting crest 11 of body 1.
Embodiment three：
Technical scheme in the present embodiment is essentially identical with the technical scheme in embodiment one, and difference is, this reality
In applying example, in step c, the crest 11 on the end periphery of body 1 is polished using file or sand paper.This artificial removal's crest
The advantage of the mode of 11 materials is that manufacturing cost is relatively low.
Example IV：
The basic phase of technical scheme in technical scheme in the present embodiment and embodiment one, embodiment two and embodiment three
Together, difference is, in the present embodiment, in step b, before joint 2 and body 1 connect, in addition it is also necessary to by the end face of body 1 mill
It is flat；Before step e, the end face and reference section of body 1 will be circumferentially injected into the welding rod of the identical material of body 1 using welding gun
Between 221 end face.Welded using the end face of identical material butt joint 2 and the end face of body 1 so that joint 2 and body 1
It is stronger to link together, and the weld seam of the welding can be covered after PUR welding, both it had been avoided that weld seam was corroded
Destruction, it is also possible to so that the welding position of periphery is more smooth.
Embodiment five：
The basic phase of technical scheme in technical scheme in the present embodiment and embodiment one, embodiment two and embodiment three
Together, difference is in the present embodiment, in step b, before joint 2 and the grafting of body 1, uniformly to apply on the surface of Plug Division 222
Cover glue.During grafting, the further reinforcement of joint 2 and body 1 is completed.
Embodiment six：
The basic phase of technical scheme in technical scheme in the present embodiment and embodiment one, embodiment two and embodiment three
Together, difference is in the present embodiment, also have at least one annular groove, ring on the periphery of Plug Division 222 of joint 2
Rubber weather strip is provided with connected in star, in step b, before joint 2 and the grafting of body 1, lubrication is applied on rubber weather strip
Agent.Cause joint 2 and the grafting of body 1 more firm by arranging rubber seal, and medium can be reduced by inside
Gap is seeped into corrosion welding material at welding position.
Specific embodiment described herein is only explanation for example spiritual to the present invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications to described specific embodiment or supplement or replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (10)
1. a kind of helical corrugation shape pipeline flexible bayonet joint technique, the helical corrugation shape pipeline includes body (1) and connects
Head (2), the joint (2) is fixedly attached to body (1) end, it is characterised in that having on the joint (2) is used for joint
(2) fixing end (22) fixed with body (1), the fixing end (22) includes tubular reference section (221) and Plug Division
(222), the external diameter of the Plug Division (222) makes Plug Division (222) by interference fit grafting less than the external diameter of reference section (221)
In body (1), the periphery of the reference section (221) is solder side one (223), and this helical corrugation shape pipeline flexible spigot-and-socket connects
Connect technique to comprise the following steps：
A, body feeding：According to production requirement length intercept body (1), by body (1) rotationally clamping on support；
B, joint feeding：Clamping connector (2) makes Plug Division (222) just to body (1) end, promotes joint (2) by Plug Division
(222) insert in body (1)；
C, processing tube wall：The crest (11) removed on the periphery of body (1) end forms solder side two (12), solder side two
(12) it is≤1mm with the difference in height of solder side one (223), makes the periphery of body (1) basic with the periphery of reference section (221)
Concordantly；
D, preheat helical corrugation shape pipeline：Helical corrugation shape pipeline is heated, body (1) and Plug Division (222) are made
Junction temperature rises to 120 DEG C～180 DEG C；
E, cladding PUR：Helical corrugation shape pipeline is rotated, while be heated to extrusion between body (1) and reference section (221) melting
The PUR (3) of change, makes PUR (3) cover the junction of body (1) and joint (2), flattens body (1) and reference section
(221) PUR (3) on, makes PUR (3) extend to both sides and solder side one (223) and solder side two is completely covered
(12)；
F, cooling spiral corrugated pipeline：Stop heating coil corrugated pipeline, and place until cooling；
G, helical corrugation shape pipeline blanking：The clamping to body (1) is released, helical corrugation shape pipeline is removed.
2. helical corrugation shape pipeline flexible bayonet joint technique according to claim 1, it is characterised in that the step
In b, after the Plug Division (222) insertion body (1) of the joint (2) is interior, end face and the body (1) of the reference section (221)
End face between gap be 1mm～5mm.
3. helical corrugation shape pipeline flexible bayonet joint technique according to claim 1, it is characterised in that the step
In c, using milling cutter the crest (11) on body (1) periphery is removed along body (1) circumferential movement.
4. helical corrugation shape pipeline flexible bayonet joint technique according to claim 1, it is characterised in that the step
In c, body (1) outer wall is processed using lathe tool, body (1) is rotated in process, lathe tool is at the uniform velocity fed body (1) periphery
On crest (11) remove.
5. helical corrugation shape pipeline flexible bayonet joint technique according to claim 1, it is characterised in that the step
In c, the crest (11) on the periphery of body (1) end is polished using file or sand paper.
6. helical corrugation shape pipeline flexible bayonet joint technique according to any one of claim 1 to 5, its feature exists
In in step d, body (1) uniform rotation in heating process, heating location is consolidated body (1) lower section 5mm～10mm's
Positioning is put.
7. helical corrugation shape pipeline flexible bayonet joint technique according to any one of claim 1 to 5, its feature exists
In in step b, before joint (2) and body (1) connection, in addition it is also necessary to polish body (1) end face；Step e it
Before, the welding rod of material identical with body (1) is circumferentially injected into the end face and reference section (221) of body (1) using welding gun
Between end face.
8. helical corrugation shape pipeline flexible bayonet joint technique according to any one of claim 1 to 5, its feature exists
In in step b, before joint (2) and body (1) grafting, on Plug Division (222) surface glue uniformly being coated.
9. helical corrugation shape pipeline flexible bayonet joint technique according to any one of claim 1 to 5, its feature exists
In, also there is at least one annular groove on Plug Division (222) periphery of the joint (2), it is all provided with the annular groove
Rubber weather strip is equipped with, in step b, before joint (2) and body (1) grafting, lubricant is applied on rubber weather strip.
10. helical corrugation shape pipeline flexible bayonet joint technique according to any one of claim 1 to 5, its feature
It is that the outer wall of the Plug Division (222) is incline structure.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107972282A (en) * | 2017-11-22 | 2018-05-01 | 湖北优尼科光电技术股份有限公司 | A kind of method and system for strengthening pipe fitting firm welding |
| CN108145985A (en) * | 2018-02-11 | 2018-06-12 | 浙江天井塑业有限公司 | A kind of bonding machine of helical corrugation shape pipeline |
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|---|---|
| CN106626414B (en) | 2018-12-04 |
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