HDPE hollow metal corrugated pipe structure and manufacturing process thereof
阅读说明：本技术 一种hdpe中空金属波纹管结构及其制造工艺 (HDPE hollow metal corrugated pipe structure and manufacturing process thereof ) 是由 张玉祥 于 2020-06-24 设计创作，主要内容包括：本发明公开了一种HDPE中空金属波纹管结构及其制造工艺,涉及波纹管技术领域。该HDPE中空金属波纹管结构,包括外管和内管,所述外管套设于内管的表面,所述外管包括外管本体。该HDPE中空金属波纹管结构及其制造工艺,通过将波纹管分成内管和外管两个结构,中间用环氧树脂胶和固化剂的组合黏合,并在内管和外管内设置加强涂料和缓冲槽(上料槽、下料槽和螺纹槽的组合),从而很好的避免了加强涂料的磨损,同时加强了缓冲槽的缓冲效果以及减少了缓冲槽对波纹管使用的影响(缓冲槽为槽体,若出现在波纹管内壁或者外壁上,则会使得波纹管的形状偏离管状,从而影响波纹管的使用),加强波纹管性能的同时延长了波纹管的使用寿命。(The invention discloses a HDPE hollow metal corrugated pipe structure and a manufacturing process thereof, and relates to the technical field of corrugated pipes. This HDPE cavity metal bellows structure, including outer tube and inner tube, the surface of inner tube is located to the outer pipe box, the outer tube includes the outer tube body. This HDPE cavity metal bellows structure and manufacturing process thereof, through dividing into two structures of inner tube and outer tube with the bellows, the centre bonds with the combination of epoxy glue and curing agent, and set up reinforced coating and dashpot (go up the silo, the combination of silo and thread groove down in inner tube and outer tube, thereby fine the wearing and tearing of reinforced coating of having avoided, the buffering effect of dashpot has been strengthened simultaneously and the influence of dashpot to the bellows use has been reduced (the dashpot is the cell body, if appear on bellows inner wall or outer wall, then can make the shape of bellows deviate tubulose, thereby influence the use of bellows), the life of bellows has been prolonged in the time of strengthening the bellows performance.)
1. An HDPE hollow metal corrugated pipe structure is characterized in that: the device comprises an outer pipe (1) and an inner pipe (2), wherein the outer pipe (1) is sleeved on the surface of the inner pipe (2);
the outer pipe (1) comprises an outer pipe body (11), a corrugated part (13) is arranged on the surface of the outer pipe body (11), buffer holes (14) penetrate through two sides of the outer pipe body (11), and limiting threads (12) are arranged in the outer pipe body (11);
inner tube (2) include inner tube body (21), thread groove (22) that set up with restriction screw thread (12) cooperation are seted up on the surface of inner tube body (21), when outer tube (1) was combined with inner tube (2), restriction screw thread (12) were located the upper portion of thread groove (22) inner chamber, thread groove (22) are the heliciform and encircle and set up in the surface of inner tube body (21), the top on the positive surface of inner tube body (21) is provided with down silo (24), the bottom on the positive surface of inner tube body (21) is provided with silo (23), silo (24) and last silo (23) all communicate with thread groove (22) down, holding tank (25) have been seted up on the surface of inner tube body (21), holding tank (25) are located the below of thread groove (22) and communicate with thread groove (22).
2. The HDPE hollow metal bellows structure of claim 1, wherein: the accommodating grooves (25) are uniformly distributed relative to the thread grooves (22), the tops of the accommodating grooves (25) are communicated with the thread grooves (22), and the bottoms of the accommodating grooves (25) are not communicated with the thread grooves (22).
3. A manufacturing process of HDPE hollow metal corrugated pipe is characterized in that: a HDPE hollow metal bellows structure comprising as claimed in claim 1 the steps of:
s1, manufacturing an inner pipe body (21), a blanking groove (24), a combination of a feeding groove (23) and a thread groove (22) and an outer pipe (1) by adopting HDPE materials and using a mould in an injection molding mode, and arranging buffer holes (14) on two sides of the outer pipe (1), wherein the hole diameter of each buffer hole (14) is 0.5mm, and the extending direction of each hole is parallel to the direction of the outer pipe (1);
s2, arranging an accommodating groove (25) on the combined body obtained in the step S1, wherein the size of the accommodating groove (25) is determined according to the quality requirement of the product, the larger the accommodating groove (25), the stronger the folding resistance and elasticity of the corrugated pipe are, and the smaller the mass is, the smaller the pressure resistance is, so that the inner pipe (2) is manufactured;
s3, mixing fluororesin, sodium sulfate decahydrate and aluminum powder according to the mass ratio of 67:24:9 at the temperature of 100-150 ℃ for 0.5-1h to prepare a heat-resistant coating, and then placing the heat-resistant coating in the temperature of 100-150 ℃ for later use;
s4, mixing the dioxygen amine, the hydrophobic meteorological silica, the hydrophilic meteorological silica and the water according to the mass ratio of 6:4:3:25 at the temperature of 145-165 ℃ for 15-30min to prepare a curing agent, and storing the curing agent in the environment of 145-165 ℃ for later use;
s5, uniformly coating the heat-resistant paint obtained in the step S3 on the inner wall of the outer pipe (1), wherein the thickness of the heat-resistant paint is 0.15-0.2 mm;
s6, after the heat-resistant paint smeared in the step S5 is dried, inserting the inner pipe (2) obtained in the step S2 into the outer pipe (1) in a rotating mode, and meanwhile ensuring that the limiting thread (12) is screwed into the thread groove (22), so that an initial product is obtained;
s7, placing the feeding groove (23) of the primary product obtained in the step S6 upwards, blocking the discharging groove (24), and then injecting epoxy resin glue into the feeding groove (23) until the liquid level of the epoxy resin glue reaches 1-2cm of the notch of the discharging groove (24), so as to obtain a secondary product;
s8, blocking the discharging groove (24) of the secondary product obtained in the step S7, turning over the secondary product to enable the feeding groove (23) of the secondary product to face upwards, then opening the notch of the feeding groove (23) and injecting the curing agent obtained in the step S4 until the liquid level of the mixed liquid is flush with the notch surface of the feeding groove (23);
and S9, blocking the feeding groove (23) of the product obtained in the step S8 and placing the product in the chamber 3d, thereby completing the manufacture of the corrugated pipe.
4. The process for manufacturing HDPE hollow metal corrugated pipe as claimed in claim 1, wherein: in steps S7, S8 and S9, all the plugs for plugging the notches of the feeding groove (23) and the discharging groove (24) are plugs made of HDPE.
Technical Field
The invention relates to the technical field of corrugated pipes, in particular to a HDPE hollow metal corrugated pipe structure and a manufacturing process thereof.
Background
The corrugated pipe is a tubular elastic sensitive element which is formed by connecting foldable corrugated sheets along the folding and stretching direction. The corrugated pipe has wide application in instruments and meters, and is mainly used as a measuring element of a pressure measuring instrument to convert pressure into displacement or force. The corrugated pipe has thin pipe wall and high sensitivity, and the measurement range is from tens of Pa to tens of MPa. The opening end of the corrugated pipe is fixed, the sealing end is in a free state, the elasticity is increased by using an auxiliary spiral spring or a reed, and the HDPE corrugated pipe is one of corrugated pipes.
In the prior art, the bellows only adopts integrated mould injection moulding's manufacturing process, the bellows is the integral structure, the performance that only can strengthen the bellows through the material of strengthening the bellows is strengthened, but the enhancement degree of difficulty of material is great relatively, if there is the dashpot, the dashpot also only exists on bellows outer wall or inner wall, buffering effect is not good, cause the elasticity and the resistant bending property of bellows to receive the restriction, some bellows are in the preparation, only scribble reinforced material on its surface thereby strengthen on certain performance, nevertheless along with the use of bellows, the material of scribbling on surface can wear and tear, thereby make the performance of bellows decline, the life of bellows has been shortened.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a HDPE hollow metal corrugated pipe structure and a manufacturing process thereof, and solves the problems that in the prior art, the corrugated pipe is manufactured by only adopting an integrated mold injection molding manufacturing process, the corrugated pipe is of an integrated structure, the performance of the corrugated pipe can be enhanced only through materials for reinforcing the corrugated pipe, but the material reinforcing difficulty is relatively high, if a buffer groove exists, the buffer groove also exists only on the outer wall or the inner wall of the corrugated pipe, the buffering effect is poor, the elasticity and the bending resistance of the corrugated pipe are limited, and in the manufacturing process of some corrugated pipes, the reinforcing materials are only coated on the surface of the corrugated pipe, so that the reinforcing materials are reinforced on certain performance, but along with the use of the corrugated pipe, the coating materials on the surface are abraded, and the performance of.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the HDPE hollow metal corrugated pipe structure comprises an outer pipe and an inner pipe, wherein the outer pipe is sleeved on the surface of the inner pipe;
the outer pipe comprises an outer pipe body, a corrugated part is arranged on the surface of the outer pipe body, buffer holes are formed in the two sides of the outer pipe body in a penetrating mode, and limiting threads are arranged in the outer pipe body;
the inner tube includes the inner tube body, the thread groove that sets up with restriction screw-thread fit is seted up on the surface of inner tube body, when outer tube and inner tube combination, the restriction screw thread is located the upper portion of thread groove inner chamber, the thread groove is the heliciform and encircles and set up in the surface of inner tube body, the top on the positive surface of inner tube body is provided with down the silo, the bottom on the positive surface of inner tube body is provided with the silo, silo and last silo all communicate with the thread groove down, the holding tank has been seted up on the surface of inner tube body, the holding tank is located the below of thread groove and communicates with the thread groove.
Preferably, the holding tank is for thread groove evenly distributed, the top and the thread groove intercommunication of holding tank, the bottom and the thread groove intercommunication not of holding tank.
A manufacturing process of HDPE hollow metal corrugated pipe comprises the HDPE hollow metal corrugated pipe structure, and comprises the following steps:
s1, manufacturing an inner tube body, a blanking groove, a combination of an upper groove and a thread groove and an outer tube by adopting HDPE materials and using a mould in an injection molding mode, and arranging buffer holes on two sides of the outer tube, wherein the diameter of each buffer hole is 0.5mm, and the extending direction of each hole is parallel to the direction of the outer tube;
s2, arranging an accommodating groove on the combined body obtained in the step S1, wherein the size of the accommodating groove is determined according to the quality requirement of the product, the larger the accommodating groove is, the stronger the folding resistance and elasticity of the corrugated pipe are, the smaller the quality is, and the smaller the pressure resistance is, so that an inner pipe is manufactured;
s3, mixing fluororesin, sodium sulfate decahydrate and aluminum powder according to the mass ratio of 67:24:9 at the temperature of 100-150 ℃ for 0.5-1h to prepare a heat-resistant coating, and then placing the heat-resistant coating in the temperature of 100-150 ℃ for later use;
s4, mixing the dioxygen amine, the hydrophobic meteorological silica, the hydrophilic meteorological silica and the water according to the mass ratio of 6:4:3:25 at the temperature of 145-165 ℃ for 15-30min to prepare a curing agent, and storing the curing agent in the environment of 145-165 ℃ for later use;
s5, uniformly coating the heat-resistant paint obtained in the step S3 on the inner wall of the outer tube, wherein the thickness of the heat-resistant paint is 0.15-0.2 mm;
s6, after the heat-resistant paint smeared in the step S5 is dried, inserting the inner pipe obtained in the step S2 into the outer pipe in a rotating mode, and meanwhile ensuring that the limiting screw threads are screwed into the screw thread groove, so that an initial product is obtained;
s7, placing the feeding groove of the primary product obtained in the step S6 upwards, blocking the discharging groove, and then injecting epoxy resin glue into the feeding groove until the liquid level of the epoxy resin glue reaches 1-2cm of the notch of the discharging groove, so as to obtain a secondary product;
s8, plugging the blanking groove of the secondary product obtained in the step S7, turning over the secondary product to enable the feeding groove of the secondary product to face upwards, then opening the notch of the feeding groove and injecting the curing agent obtained in the step S4 until the liquid level of the mixed liquid is flush with the notch face of the feeding groove;
and S9, blocking the feeding groove of the product obtained in the step S8 and placing the product in the chamber 3d to finish the manufacture of the corrugated pipe.
Preferably, the plugs blocking the notches of the feeding and discharging tanks in steps S7, S8 and S9 are all plugs made of HDPE.
(III) advantageous effects
The invention provides a HDPE hollow metal corrugated pipe structure and a manufacturing process thereof. The method has the following beneficial effects: this HDPE cavity metal bellows structure and manufacturing process thereof, through dividing into two structures of inner tube and outer tube with the bellows, the centre bonds with the combination of epoxy glue and curing agent, and set up reinforced coating and dashpot (go up the silo, the combination of silo and thread groove down in inner tube and outer tube, thereby fine the wearing and tearing of reinforced coating of having avoided, the buffering effect of dashpot has been strengthened simultaneously and the influence of dashpot to the bellows use has been reduced (the dashpot is the cell body, if appear on bellows inner wall or outer wall, then can make the shape of bellows deviate tubulose, thereby influence the use of bellows), the life of bellows has been prolonged in the time of strengthening the bellows performance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of an outer tube according to the present invention;
FIG. 3 is a schematic structural view of the inner tube of the present invention.
In the figure: 1. an outer tube; 11. an outer tube body; 12. a restraining thread; 13. a corrugated portion; 14. a buffer hole; 2. an inner tube; 21. an inner tube body; 22. a thread groove; 23. a feeding trough; 24. a discharging groove; 25. and (6) accommodating the tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an HDPE hollow metal corrugated pipe structure comprises an outer pipe 1 and an inner pipe 2, wherein the outer pipe 1 is sleeved on the surface of the inner pipe 2;
the outer tube 1 comprises an
inner tube 2 includes
A manufacturing process of HDPE hollow metal corrugated pipe comprises the HDPE hollow metal corrugated pipe structure, and comprises the following steps:
s1, manufacturing a combination of the
s2, arranging an
s3, mixing fluororesin, sodium sulfate decahydrate and aluminum powder according to the mass ratio of 67:24:9 at the temperature of 100-150 ℃ for 0.5-1h to prepare a heat-resistant coating, and then placing the heat-resistant coating in the temperature of 100-150 ℃ for later use;
s4, mixing the dioxygen amine, the hydrophobic meteorological silica, the hydrophilic meteorological silica and the water according to the mass ratio of 6:4:3:25 at the temperature of 145-165 ℃ for 15-30min to prepare a curing agent, and storing the curing agent in the environment of 145-165 ℃ for later use;
s5, uniformly coating the heat-resistant paint obtained in the step S3 on the inner wall of the outer tube 1, wherein the thickness of the heat-resistant paint is 0.15-0.2 mm;
s6, after the heat-resistant paint smeared in the step S5 is dried, inserting the inner pipe 2 obtained in the step S2 into the outer pipe 1 in a rotating mode, and meanwhile ensuring that the
s7, placing the
s8, blocking the
s9, the
To sum up, this HDPE cavity metal corrugated pipe structure and manufacturing process thereof, through dividing the bellows into inner tube 2 and outer tube 1 two structures, the centre bonds with the combination of epoxy glue and curing agent, and set up reinforced coating and dashpot (go up
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
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