CN110185852A - Hot winding dual waves enhancing helical bellows and its manufacturing method - Google Patents
Hot winding dual waves enhancing helical bellows and its manufacturing method Download PDFInfo
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- CN110185852A CN110185852A CN201910553276.5A CN201910553276A CN110185852A CN 110185852 A CN110185852 A CN 110185852A CN 201910553276 A CN201910553276 A CN 201910553276A CN 110185852 A CN110185852 A CN 110185852A
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- 230000009977 dual effect Effects 0.000 title claims abstract description 66
- 238000004804 winding Methods 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000005253 cladding Methods 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 52
- 230000003014 reinforcing effect Effects 0.000 claims description 33
- 238000002844 melting Methods 0.000 claims description 26
- 230000008018 melting Effects 0.000 claims description 26
- -1 polyethylene Polymers 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229930000044 secondary metabolite Natural products 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/18—Pleated or corrugated hoses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The present invention relates to hot winding dual waves enhancing helical bellows and its manufacturing methods.The bellows includes ripple tube body and dual waves spiral enhancement layer, dual waves spiral enhancement layer includes dual waves ripple enhancement layer and clad, dual waves ripple enhancement layer includes the big wave crest layer of spiral shape, the small wave crest layer of spiral shape and spiral shape connection wall, there are gaps between the big wave crest layer inner surface of spiral shape and spiral shape small wave crest layer outer surface, it is in the ripple struction that wave crest and trough are successively arranged alternately that the peripheral wall of dual waves ripple enhancement layer, which extends spirally direction along it, clad is the smooth solid wall layer that cladding is connected on dual waves ripple enhancement layer periphery wall, the inner surface that clad is coated on the part of spiral shape connection wall periphery is fixedly connected with the outer surface of ripple tube body.The bellows adhesive strength is high, is not readily separated, long service life, which not only avoids the occurrence of the phenomenon that existing cold conditions wrapped tube easily separates, but also easy to operate, process stabilizing.
Description
Technical field
The present invention relates to pipe material field, in particular to a kind of hot winding dual waves enhancing helical bellows and its manufacturer
Method.
Background technique
The wave crest of the helical bellows of existing old-fashioned structure is secondary compound with its body portion, and its wave crest is circle
(as shown in Figure 1) is point contact with tube body, and contact area is smaller, and the bonding effect of wave crest and tube body is limited, by external pressure
When, easily cause wave crest and body portion from so that tubing be made to lose resistance to compression effect, critical external compressive resistance performance is poor, and service life is short.
Summary of the invention
The purpose of the present invention is to provide a kind of hot winding dual waves enhancing helical bellows and its manufacturing method, the waves
The dual waves spiral enhancement layer of line pipe includes dual waves ripple enhancement layer and clad, and clad is smooth solid wall layer, with ripple
The bond area of tube body is big, and adhesive strength is high, is not readily separated, is conducive to wave crest when by external force, power is transmitted in time
Other positions of tubing, it is ensured that the collaboration resistance to compression of tubing acts on, and making tubing is not in problem of stress concentration when by external force,
To avoid generating destruction, long service life, furthermore dual waves ripple enhancement layer substantially increases the ring stiffness of tubing, the manufacture
Each layer is combined with each other by method using hot winding, and heat seal strength is high, not only avoids the occurrence of existing cold conditions wrapped tube easily
The phenomenon that separation, and easy to operate, process stabilizing.
The present invention is implemented as follows:
Scheme (one):
A kind of hot winding dual waves enhancing helical bellows, it is characterised in that: twined including ripple tube body and spiral
The dual waves spiral enhancement layer being around on bellows body outer surface, the ripple tube body are tubular shape, the dual waves spiral shell
Rotation enhancement layer includes dual waves ripple enhancement layer and the clad that cladding is connected on dual waves ripple enhancement layer periphery wall, institute
State dual waves ripple enhancement layer include the big wave crest layer of spiral shape, the small wave crest layer of spiral shape being sheathed in the big wave crest layer of spiral shape with
And it is connected to the spiral shape connection wall between the big wave crest layer of spiral shape and spiral shape small wave crest layer bottom end two sides, the spiral
There are gap, the peripheral walls of the dual waves ripple enhancement layer between the big wave crest layer inner surface of shape and spiral shape small wave crest layer outer surface
Extending spirally direction along it is in the ripple struction that wave crest and trough are successively arranged alternately, and the clad is that cladding is connected to double wave
Smooth solid wall layer on spike line enhancement layer periphery wall, the clad are coated on the interior table of the part of spiral shape connection wall periphery
Face is fixedly connected with the outer surface of ripple tube body.
Preferably, the dual waves spiral enhancement layer using straight line strip-like-shaped reinforcing profile and is coated on straight line strip-like-shaped
Linear clad spiral winding on reinforcing profile periphery wall forms, and the straight line strip-like-shaped reinforcing profile includes that linear is big
Wave crest layer, the small wave crest layer of linear being sheathed in the big wave crest layer of linear and it is connected to the big wave crest layer of linear and straight
Linear connection wall between linear small wave crest layer bottom end two sides, the big wave crest layer inner surface of the linear and the small wave crest of linear
There are gap between layer outer surface, the peripheral wall of the straight line strip-like-shaped reinforcing profile is in profile wave crest and profile along its length
The ripple struction that trough is successively arranged alternately.
Preferably, the ripple tube body is using strip sheet material base spiral winding at tubular shape, strip sheet material
The lap of base adjacent edge mutually it is melting adhered together.
Preferably, the ripple tube body is polyethylene layer or polypropylene layer, the dual waves ripple enhancement layer and cladding
Layer is modified poly ethylene layer or modified polypropene layer.
Preferably, the ripple tube body with a thickness of 3~15mm, the wall thickness of the dual waves ripple enhancement layer is 1~
4mm, the wall thickness of the clad are 1~8mm.
Preferably, the height of the big wave crest layer of the linear is 1.5~3 times of the height of the small wave crest layer of linear, described
The width of the big wave crest layer of linear is 1.5~3 times of the width of the small wave crest layer of linear, the height of the big wave crest layer of linear
It is 0.7~1.4 times of the width of the big wave crest layer of linear, the height of the small wave crest layer of linear is the small wave crest layer of linear
0.7~1.4 times of width, the height of the big wave crest layer of linear are the 6%~10% of helical corrugation bore, the double wave
The screw pitch of peak spiral enhancement layer is 1.5~3 times of the width of the big wave crest layer of linear.
Scheme (two):
A kind of manufacturing method of hot winding dual waves enhancing helical bellows, it is characterised in that: this method includes following
Step:
1. the material for making straight line strip-like-shaped reinforcing profile is melted, and squeezed out using extruder and mold with straight
Linear big wave crest layer, the small wave crest layer of linear and linear connection wall and periphery wall are in that profile wave crest and profile trough successively replace
The profile of the structure of setting forms straight line strip-like-shaped reinforcing profile after cooling；
2. the material for making linear clad is melted, then squeezes out linear clad and be thermally bonded in vertical element
On shape shape reinforcing profile periphery wall；
3. the material for making ripple tube body is melted, and form in a mold, forms strip sheet material base, so
Afterwards by strip sheet material base spiral winding at cylindrical shape, the rim portion for keeping strip sheet material base adjacent is melting adhered together
Form ripple tube body；
4. carry out step 3. while, by step 2. in manufactured straight line strip-like-shaped reinforcing profile and linear clad
It is preheated, is then pressed on ripple tube body according to the pitch auger of setting and carries out melting adhered, warp with ripple tube body
After cooling and shaping, hot winding dual waves enhancing helical bellows are made.
Step 1. in production straight line strip-like-shaped reinforcing profile material melting temperature be 180 DEG C~250 DEG C, before melting
Further include the steps that the at a temperature of progress baking material by material at 70 DEG C~100 DEG C, baking time are not less than 20min；
Step 2. in production linear clad material melting temperature be 180 DEG C~250 DEG C, further include before melting
By material 70 DEG C~100 DEG C at a temperature of carry out baking material the step of, baking time be not less than 20min；
Step 3. in production ripple tube body material melting temperature be 180 DEG C~230 DEG C, further include before melting by
Material 70 DEG C~100 DEG C at a temperature of carry out baking material the step of, baking time be not less than 20min；
Step 4. in preheating temperature that straight line strip-like-shaped reinforcing profile and linear clad are preheated be 80 DEG C~
120℃。
For the prior art, the invention has the following advantages that
(1) hot winding dual waves enhancing helical bellows provided by the invention and its manufacturing method, pair of the bellows
Wave crest spiral enhancement layer includes dual waves ripple enhancement layer and clad, and clad is smooth solid wall layer, with ripple tube body
Bond area is big, and adhesive strength is high, is not readily separated, is conducive to wave crest when by external force, power is transmitted to tubing its in time
Its position, it is ensured that the collaboration resistance to compression of tubing acts on, and making tubing is not in problem of stress concentration when by external force, to avoid
Destruction is generated, long service life, furthermore dual waves ripple enhancement layer substantially increases the ring stiffness of tubing, which uses
Each layer is combined with each other by hot winding, and heat seal strength is high, and it is extremely segregative existing not only to avoid the occurrence of existing cold conditions wrapped tube
As, and easy to operate, process stabilizing；
(2) hot winding dual waves provided by the invention enhance helical bellows, have been arranged small wave crest layer in big wave crest layer
Structure, improves the whole ring stiffness of tubing, and improves the anti-internal pressure performance at cavity simultaneously, avoids tubing in water flowing,
Because being destroyed at tubing cavity caused by water body Gravity Problem；
(3) hot winding dual waves provided by the invention enhance helical bellows, and structurally reasonable, long service life is easy to
It promotes and applies.
Detailed description of the invention
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings:
Fig. 1 is the structural schematic diagram of existing old-fashioned structure helical bellows；
Fig. 2 is the structural schematic diagram of the hot winding dual waves enhancing helical bellows of the present invention；
Fig. 3 is the partial enlargement diagram of A in Fig. 2；
Fig. 4 is the three dimensional structure diagram of straight line strip-like-shaped reinforcing profile of the present invention；
Fig. 5 is the left view of straight line strip-like-shaped reinforcing profile of the present invention；
Fig. 6 is the A-A cross-sectional view in Fig. 5；
Fig. 7 is the main view of straight line strip-like-shaped reinforcing profile of the present invention；
Fig. 8 is the B-B cross-sectional view in Fig. 7；
Fig. 9 is the C-C cross-sectional view in Fig. 7.
Symbol description in figure: 1, ripple tube body, 2, dual waves spiral enhancement layer, 21, dual waves ripple enhancement layer, 211,
The big wave crest layer of spiral shape, 212, the small wave crest layer of spiral shape, 213, spiral shape connection wall, 22, clad, 3, the enhancing of straight line strip-like-shaped
Profile, 31, the big wave crest layer of linear, 32, the small wave crest layer of linear, 33, linear connection wall, 34, profile wave crest, 35, profile
Trough, h1, the big wave crest layer of linear height, h2, the small wave crest layer of linear height, b1, the big wave crest layer of linear width,
b2, the small wave crest layer of linear width, D, helical corrugation bore, the screw pitch of P, dual waves spiral enhancement layer.
Specific embodiment
The content of present invention is described in detail with specific embodiment with reference to the accompanying drawings of the specification:
Specific embodiment (one):
Enhance helical bellows as shown in figs. 2-9 for the hot winding dual waves of one kind provided by the invention, it is characterised in that:
Including ripple tube body 1 and the dual waves spiral enhancement layer 2 being helically wound around on 1 outer surface of ripple tube body, the ripple
Tube body 1 is tubular shape, and the dual waves spiral enhancement layer 2 includes that dual waves ripple enhancement layer 21 and cladding are connected to double wave
Clad 22 on 21 periphery wall of spike line enhancement layer, the dual waves ripple enhancement layer 21 include the big wave crest layer 211 of spiral shape,
The small wave crest layer 212 of spiral shape that is sheathed in the big wave crest layer 211 of spiral shape and it is connected to big 211 He of wave crest layer of spiral shape
Spiral shape connection wall 213 between the small 212 bottom end two sides of wave crest layer of spiral shape, big 211 inner surface of wave crest layer of spiral shape and
There are gap between small 212 outer surface of wave crest layer of spiral shape, the peripheral wall of the dual waves ripple enhancement layer 21 is extended spirally along it
Direction is in the ripple struction that wave crest and trough are successively arranged alternately, and the clad 22 is that cladding is connected to the enhancing of dual waves ripple
Smooth solid wall layer on 21 periphery wall of layer, the clad 22 are coated on the inner surface of the part of 213 periphery of spiral shape connection wall
It is fixedly connected with the outer surface of ripple tube body 1.
As shown in figures 4-9, the dual waves spiral enhancement layer 2 using straight line strip-like-shaped reinforcing profile 3 and is coated on straight
Linear clad spiral winding on 3 periphery wall of linear shape reinforcing profile forms, and the straight line strip-like-shaped reinforcing profile 3 is wrapped
It includes the big wave crest layer 31 of linear, the small wave crest layer 32 of linear that is sheathed in the big wave crest layer 31 of linear and be connected to straight
Linear connection wall 33 between linear big wave crest layer 31 and the small 32 bottom end two sides of wave crest layer of linear, the big wave crest of linear
There are gap, the peripheral walls of the straight line strip-like-shaped reinforcing profile 3 between 31 inner surface of layer and small 32 outer surface of wave crest layer of linear
The ripple struction being successively arranged alternately in profile wave crest 34 and profile trough 35 along its length.
Preferably, the ripple tube body 3 is using strip sheet material base spiral winding at tubular shape, strip sheet material
The lap of base adjacent edge mutually it is melting adhered together.
Preferably, the ripple tube body 1 be polyethylene layer or polypropylene layer, the dual waves ripple enhancement layer 21 and packet
Coating 22 is modified poly ethylene layer or modified polypropene layer.
Preferably, the ripple tube body 1 with a thickness of 3~15mm, the wall thickness of the dual waves ripple enhancement layer 21 is 1
~4mm, the wall thickness of the clad 22 are 1~8mm.
As shown in Fig. 2, Fig. 5, the height h of the big wave crest layer 31 of linear1For the height h of the small wave crest layer 32 of linear2's
1.5~3 times, the width b of the big wave crest layer 31 of linear1For the width b of the small wave crest layer 32 of linear21.5~3 times, it is described
The height h of the big wave crest layer 31 of linear1For the width b of the big wave crest layer 31 of linear10.7~1.4 times, the linear small echo
The height h of peak layer 322For the width b of the small wave crest layer 32 of linear20.7~1.4 times, the height of the big wave crest layer 31 of linear
Spend h1It is the 6%~10% of helical corrugation bore D, the pitch P of the dual waves spiral enhancement layer 2 is the big wave crest layer of linear
31 width b11.5~3 times.
Specific embodiment (two):
A kind of manufacturing method of hot winding dual waves enhancing helical bellows, it is characterised in that: this method includes following
Step:
1. the material for making straight line strip-like-shaped reinforcing profile 3 is melted, and had using extruder and mold extrusion
The big wave crest layer 31 of linear, the small wave crest layer 32 of linear and linear connection wall 33 and periphery wall are in profile wave crest 34 and profile wave
The profile for the structure that paddy 35 is successively arranged alternately forms straight line strip-like-shaped reinforcing profile 3 after cooling；
2. the material for making linear clad is melted, then squeezes out linear clad and be thermally bonded in vertical element
On 3 periphery wall of shape shape reinforcing profile；
3. the material for making ripple tube body 1 is melted, and form in a mold, form strip sheet material base,
Then by strip sheet material base spiral winding at cylindrical shape, the rim portion for keeping strip sheet material base adjacent is melting adhered one
It rises and forms ripple tube body 1；
4. while carrying out step 3., by step 2. in manufactured straight line strip-like-shaped reinforcing profile 3 and linear coat
Layer preheated, then according to the pitch auger of setting be pressed on ripple tube body 1 with ripple tube body carry out it is melting adhered,
After cooling and shaping, hot winding dual waves enhancing helical bellows are made.
Step 1. in production straight line strip-like-shaped reinforcing profile 3 material melting temperature be 180 DEG C~250 DEG C, melting
Before further include the steps that by material 70 DEG C~100 DEG C at a temperature of carry out baking material, baking time be not less than 20min；
Step 2. in production linear clad material melting temperature be 180 DEG C~250 DEG C, further include before melting
By material 70 DEG C~100 DEG C at a temperature of carry out baking material the step of, baking time be not less than 20min；
Step 3. in production ripple tube body 1 material melting temperature be 180 DEG C~230 DEG C, further include before melting
By material 70 DEG C~100 DEG C at a temperature of carry out baking material the step of, baking time be not less than 20min；
Step 4. in preheating temperature that straight line strip-like-shaped reinforcing profile 3 and linear clad are preheated be 80 DEG C~
120℃。
Table 1: the main performance contrast table of the present invention and existing tubing
From table 1 it follows that the hot winding screw pipe of the present invention, ring stiffness, the tear resistance of peaks and troughs, impact
Performance, ring are flexible, return rate is substantially better than existing tubing.
Above-mentioned specific embodiment is only explained in detail technical solution of the present invention, the present invention not only only office
It is limited to above-described embodiment, all any improvement or replacement according to the principle of the invention should all be within protection scope of the present invention.
Claims (8)
1. a kind of hot winding dual waves enhance helical bellows, it is characterised in that: twined including ripple tube body (1) and spiral
The dual waves spiral enhancement layer (2) being around on ripple tube body (1) outer surface, the ripple tube body (1) is tubular shape, described
Dual waves spiral enhancement layer (2) includes that dual waves ripple enhancement layer (21) and cladding are connected to dual waves ripple enhancement layer (21)
Clad (22) on periphery wall, the dual waves ripple enhancement layer (21) include the big wave crest layer (211) of spiral shape, are sheathed on spiral shell
It revolves the small wave crest layer (212) of spiral shape in the big wave crest layer (211) of shape and is connected to the big wave crest layer (211) of spiral shape and spiral shell
Revolve the spiral shape connection wall (213) between small wave crest layer (212) the bottom end two sides of shape, the interior table of the big wave crest layer (211) of spiral shape
There are gaps between face and small wave crest layer (212) outer surface of spiral shape, and the peripheral wall of the dual waves ripple enhancement layer (21) is along it
Extending spirally direction is in the ripple struction that wave crest and trough are successively arranged alternately, and the clad (22) is that cladding is connected to double wave
Smooth solid wall layer on spike line enhancement layer (21) periphery wall, the clad (22) are coated on spiral shape connection wall (213) outside
The inner surface of the part in week is fixedly connected with the outer surface of ripple tube body (1).
2. hot winding dual waves according to claim 1 enhance helical bellows, it is characterised in that: the dual waves spiral shell
Rotation enhancement layer (2) is using straight line strip-like-shaped reinforcing profile (3) and is coated on straight line strip-like-shaped reinforcing profile (3) periphery wall
Linear clad spiral winding forms, and the straight line strip-like-shaped reinforcing profile (3) includes the big wave crest layer (31) of linear, is arranged
In the small wave crest layer (32) of linear in the big wave crest layer (31) of linear and be connected to the big wave crest layer (31) of linear and
Linear connection wall (33) between small wave crest layer (32) the bottom end two sides of linear, big wave crest layer (31) inner surface of linear
There are gaps between small wave crest layer (32) outer surface of linear, and the peripheral wall of the straight line strip-like-shaped reinforcing profile (3) is along its length
The ripple struction that degree direction is successively arranged alternately in profile wave crest (34) and profile trough (35).
3. hot winding dual waves according to claim 1 enhance helical bellows, it is characterised in that: the bellows sheet
For body (3) using strip sheet material base spiral winding at tubular shape, the lap of strip sheet material base adjacent edge is mutually molten
Melt and bonds together.
4. hot winding dual waves according to claim 1 enhance helical bellows, it is characterised in that: the bellows sheet
Body (1) is polyethylene layer or polypropylene layer, and the dual waves ripple enhancement layer (21) and clad (22) are modified poly ethylene
Layer or modified polypropene layer.
5. hot winding dual waves according to claim 1 enhance helical bellows, it is characterised in that: the bellows sheet
Body (1) with a thickness of 3~15mm, the wall thickness of the dual waves ripple enhancement layer (21) is 1~4mm, the clad (22)
Wall thickness is 1~8mm.
6. hot winding dual waves according to claim 1 enhance helical bellows, it is characterised in that: the linear is big
Height (the h of wave crest layer (31)1) be the small wave crest layer (32) of linear height (h2) 1.5~3 times, the big wave crest of linear
Width (the b of layer (31)1) be the small wave crest layer (32) of linear width (b2) 1.5~3 times, the big wave crest layer of linear
(31) height (h1) be the big wave crest layer (31) of linear width (b1) 0.7~1.4 times, the small wave crest layer of linear
(32) height (h2) be the small wave crest layer (32) of linear width (b2) 0.7~1.4 times, the big wave crest layer of linear
(31) height (h1) it is the 6%~10% of helical corrugation bore (D), the screw pitch (P) of the dual waves spiral enhancement layer (2)
For the width (b of the big wave crest layer (31) of linear1) 1.5~3 times.
7. a kind of manufacturing method of hot winding dual waves enhancing helical bellows of any of claims 1-6,
It is characterized in that: method includes the following steps:
1. the material for making straight line strip-like-shaped reinforcing profile (3) is melted, and squeezed out using extruder and mold with straight
Linear big wave crest layer (31), the small wave crest layer (32) of linear and linear connection wall (33) and periphery wall in profile wave crest (34) and
The profile for the structure that profile trough (35) is successively arranged alternately forms straight line strip-like-shaped reinforcing profile (3) after cooling；
2. the material for making linear clad is melted, then squeezes out linear clad and be thermally bonded in straight line strip-like-shaped
On reinforcing profile (3) periphery wall；
3. the material for making ripple tube body (1) is melted, and form in a mold, forms strip sheet material base, so
Afterwards by strip sheet material base spiral winding at cylindrical shape, the rim portion for keeping strip sheet material base adjacent is melting adhered together
It is formed ripple tube body (1)；
4. carry out step 3. while, by step 2. in manufactured straight line strip-like-shaped reinforcing profile (3) and linear clad
Preheated, then according to the pitch auger of setting be pressed on ripple tube body (1) with ripple tube body carry out it is melting adhered,
After cooling and shaping, hot winding dual waves enhancing helical bellows are made.
8. manufacturing method according to claim 7, it is characterised in that:
Step 1. in production straight line strip-like-shaped reinforcing profile (3) material melting temperature be 180 DEG C~250 DEG C, before melting
Further include the steps that the at a temperature of progress baking material by material at 70 DEG C~100 DEG C, baking time are not less than 20min；
Step 2. in production linear clad material melting temperature be 180 DEG C~250 DEG C, further include by material before melting
Expect 70 DEG C~100 DEG C at a temperature of carry out baking material the step of, baking time be not less than 20min；
Step 3. in production ripple tube body (1) material melting temperature be 180 DEG C~230 DEG C, further include before melting by
Material 70 DEG C~100 DEG C at a temperature of carry out baking material the step of, baking time be not less than 20min；
Step 4. in preheating temperature that straight line strip-like-shaped reinforcing profile (3) and linear clad are preheated be 80 DEG C~
120℃。
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| CN201910553276.5A CN110185852A (en) | 2019-06-25 | 2019-06-25 | Hot winding dual waves enhancing helical bellows and its manufacturing method |
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|---|---|---|---|
| CN201910553276.5A CN110185852A (en) | 2019-06-25 | 2019-06-25 | Hot winding dual waves enhancing helical bellows and its manufacturing method |
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| CN207034433U (en) * | 2017-06-06 | 2018-02-23 | 周成纤 | Spiral two peak structure bellows |
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| CN207961768U (en) * | 2018-01-18 | 2018-10-12 | 萍乡市大地新材料科技有限公司 | Helical bellows with two vertical support muscle |
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| CN211175704U (en) * | 2019-06-25 | 2020-08-04 | 萍乡市大地新材料科技有限公司 | Thermal state winding double wave crest reinforced helical bellows |
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