阅读说明：本技术 一种玻璃微珠和玻璃纤维复合增强波纹管及其生产方法 (Glass bead and glass fiber composite reinforced corrugated pipe and production method thereof ) 是由 董志伟 于 2021-05-26 设计创作，主要内容包括：本发明公开了一种玻璃微珠和玻璃纤维复合增强波纹管及其生产方法,其中管体包括内壁和外壁,其中外壁由依次间隔规整的波峰段和波谷段组成,而内壁由平滑的管体层组成,其中外壁的复合增强材料中包含玻璃微珠和玻璃纤维；其生产方法是在外壁的复合增强材料中添加了中空玻璃微珠和短切玻璃纤维,并区分了内壁和外壁的颜色。本发明中超细玻璃微珠,内含气体为中空结构,其具有导热系数低,质轻和表面光滑等特点,可制备出保温力学性能好的管材。本发明中的玻璃纤维,具有抗拉强度大,耐热性好,隔热,隔音,阻燃,耐酸碱,绝缘性优等特点,可制备出耐热,耐酸碱高强度的管材。(The invention discloses a glass bead and glass fiber composite reinforced corrugated pipe and a production method thereof, wherein a pipe body comprises an inner wall and an outer wall, wherein the outer wall consists of a wave crest section and a wave trough section which are orderly spaced, the inner wall consists of a smooth pipe body layer, and a composite reinforced material of the outer wall comprises glass beads and glass fibers; the production method is that the composite reinforcing material of the outer wall is added with hollow glass beads and chopped glass fibers, and the colors of the inner wall and the outer wall are distinguished. The superfine glass beads in the invention contain gas with a hollow structure, have the characteristics of low heat conductivity coefficient, light weight, smooth surface and the like, and can be used for preparing pipes with good thermal insulation mechanical properties. The glass fiber has the characteristics of high tensile strength, good heat resistance, heat insulation, sound insulation, flame retardance, acid and alkali resistance, excellent insulativity and the like, and can be used for preparing heat-resistant, acid and alkali-resistant and high-strength pipes.)

1. The utility model provides a glass bead and glass fiber composite reinforcement bellows, its characterized in that includes inner wall and outer wall, and wherein the outer wall comprises regular wave crest section and trough section in proper order at interval, and the inner wall comprises smooth tube body layer, contains glass bead and glass fiber in the composite reinforcement material of outer wall wherein.

2. The corrugated pipe of claim 1, wherein the smooth composite layer of the inner wall has a thickness of 2.4mm, the peak layer of the outer wall has a thickness of 3.2mm, the radius of the peak section has a length of 23.7mm, and the distance between the peak and the valley is 13.4 mm.

3. The corrugated glass bead and glass fiber composite reinforced pipe as claimed in claim 2, wherein the length of each pipe body is 6 m.

4. The glass bead and glass fiber composite reinforced corrugated pipe as claimed in claim 1, wherein the composite reinforcing material of the outer wall comprises: 20-40 parts of hollow glass microspheres, 20-40 parts of chopped glass fibers, 25-50 parts of calcium carbonate, 50-100 parts of high-crystalline polypropylene, 4-6 parts of maleic anhydride grafted polypropylene, 0.5-0.8 part of titanium blue pigment, 0.2-1 part of silane coupling agent KH550, 0.8-1.5 parts of stearic acid SA1801 lubricant and 0.8-1.5 parts of polyethylene wax PE 110 lubricant.

5. The glass bead and glass fiber composite reinforced corrugated pipe as claimed in claim 1, wherein the composite reinforcing material of the inner wall 4 comprises: 50-150 parts of high-crystalline polypropylene, 50-100 parts of calcium carbonate, 1-1.2 parts of titanium dioxide pigment, 0.5-1 part of silane coupling agent KH550, 1-1.8 parts of stearic acid SA1801 lubricant and 1-1.8 parts of polyethylene wax PE 110 lubricant.

6. The corrugated pipe according to any one of claims 1 to 5, wherein the hollow glass beads have a regular spherical hollow structure with a diameter of 3 μm.

7. The corrugated pipe as claimed in any one of claims 1 to 5, wherein the chopped glass fiber has a structure of glass fiber with a length of 5mm and a cross-sectional diameter of 13 ± 1 um.

8. The corrugated pipe of claim 1, wherein the inner wall and the outer wall are differentiated by adding different pigments.

9. The method for producing the glass bead and glass fiber composite reinforced corrugated pipe as claimed in claim 1, wherein the method comprises the following steps:

step one, measuring the components of the composite reinforced material required for producing the outer wall according to a proportion, adding the components into a high-speed stirrer, stirring for 5 minutes, after uniformly mixing, discharging and adding the materials into a hopper of an outer wall extruder;

step two, measuring the components of the composite reinforced material required by the production of the inner wall according to the proportion, adding the components into a high-speed stirrer to be stirred for 7 minutes, and after the components are uniformly mixed, discharging the materials and adding the materials into a hopper of an inner wall extruder;

selecting a corrugated pipe extruder, a machine type SZ800 and a longitude and latitude on the upper sea of a production place, setting technological parameters of a host auxiliary machine, cooling and shaping the inner wall into a smooth state through a mold core, and fusing the outer wall and the inner wall to form a cavity chamber through vacuum suction molding; in the rotating process of the forming grinding tool, the primarily cooled and shaped double-wall corrugated pipe is conveyed into a cooling tank to realize further cooling, and then passes through a traction device and a cutting device, so that the composite reinforced corrugated pipe is obtained.

Technical Field

The invention belongs to the field of pipe production, and relates to a glass bead and glass fiber composite reinforced corrugated pipe and a production method thereof.

Background

The high-density polyethylene double-wall corrugated pipe has been widely popularized and applied in China in recent years, and all performance indexes can reach the national standard. However, the double-wall corrugated pipe generally circulated and used in the market has the characteristics of low strength, poor pressure resistance, low ring stiffness, low drop hammer impact and easy breakage, and the practical value of the corrugated pipe is influenced.

Disclosure of Invention

The invention solves the technical problems of the function and the technical defects of the existing double-wall corrugated pipe product, and provides the double-wall corrugated pipe which is simple to form, reasonable in structure, strong in pressure resistance, high in ring stiffness, low in creep rate, good in impact resistance, resistant to high and low temperature, resistant to acid and alkali, long in service life and high in practical value.

The technical scheme adopted by the invention is as follows:

the utility model provides a glass bead and glass fiber composite reinforcement bellows, includes inner wall and outer wall, and wherein the outer wall comprises the regular wave crest section of interval and trough section in proper order, and the inner wall comprises smooth tube body layer, contains glass bead and glass fiber in the composite reinforcement material of outer wall wherein.

Preferably, the thickness of the smooth composite layer of the inner wall is 2.4mm, the thickness of the peak layer of the outer wall is 3.2mm, the radius length of the peak section is 23.7mm, and the distance between the peak and the trough is 13.4 mm.

Preferably, the tube length of each tube body is 6 meters.

Wherein the composite reinforced material of the outer wall comprises the following components: 20-40 parts of hollow glass microspheres, 20-40 parts of chopped glass fibers, 25-50 parts of calcium carbonate, 50-100 parts of high-crystalline polypropylene, 4-6 parts of maleic anhydride grafted polypropylene, 0.5-0.8 part of titanium blue pigment, 0.2-1 part of silane coupling agent KH550, 0.8-1.5 parts of stearic acid SA1801 lubricant and 0.8-1.5 parts of polyethylene wax PE 110 lubricant; wherein the composite reinforcing material of the inner wall 4 comprises the following components: 50-150 parts of high-crystalline polypropylene, 50-100 parts of calcium carbonate, 1-1.2 parts of titanium dioxide pigment, 0.5-1 part of silane coupling agent KH550, 1-1.8 parts of stearic acid SA1801 lubricant and 1-1.8 parts of polyethylene wax PE 110 lubricant.

Preferably, the hollow glass beads are in a regular spherical hollow structure with the diameter of 3 um.

Preferably, the chopped glass fiber is a glass fiber structure with the length of 5mm and the section diameter of 13 +/-1 um.

Further, the inner wall and the outer wall are distinguished by adding different pigments.

A production method of a glass bead and glass fiber composite reinforced corrugated pipe comprises the following steps:

step one, measuring the components of the composite reinforced material required for producing the outer wall according to a proportion, adding the components into a high-speed stirrer, stirring for 5 minutes, after uniformly mixing, discharging and adding the materials into a hopper of an outer wall extruder;

step two, measuring the components of the composite reinforced material required by the production of the inner wall according to the proportion, adding the components into a high-speed stirrer to be stirred for 7 minutes, and after the components are uniformly mixed, discharging the materials and adding the materials into a hopper of an inner wall extruder;

selecting a corrugated pipe extruder, a machine type SZ800 and a longitude and latitude on the upper sea of a production place, setting technological parameters of a host auxiliary machine, cooling and shaping the inner wall into a smooth state through a mold core, and fusing the outer wall and the inner wall to form a cavity chamber through vacuum suction molding; in the rotating process of the forming grinding tool, the primarily cooled and shaped double-wall corrugated pipe is conveyed into a cooling tank to realize further cooling, and then passes through a traction device and a cutting device, so that the composite reinforced corrugated pipe is obtained.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. the invention has the advantages of simple forming, good appearance vision, reasonable structure, strong pressure resistance, high ring stiffness, measured value of not less than 10 KN/square meter, low creep rate of less than 4 percent, good impact performance, falling weight impact TIR of less than 10 percent, high and low temperature resistance, normal use at minus 50 ℃, acid and alkali resistance, good pressure resistance, prolonged service life and high practical value, and the pipe has good mechanical property, functionality, chemical resistance and more cost performance, thereby reflecting the trend of pipe development and light weight.

2. The superfine glass beads in the invention contain gas with a hollow structure, have the characteristics of low heat conductivity coefficient, light weight, smooth surface and the like, and can be used for preparing pipes with good thermal insulation mechanical properties.

3. The glass fiber has the characteristics of high tensile strength, good heat resistance, heat insulation, sound insulation, flame retardance, acid and alkali resistance, excellent insulativity and the like, and can be used for preparing heat-resistant, acid and alkali-resistant and high-strength pipes.

4. The inner wall and the outer wall of the corrugated pipe are distinguished by colors to form a corrugated pipe body with white inside, smooth outside and blue outside, so that the corrugated pipe body has more attractiveness and uniqueness in the market and is beneficial to the corrugated pipe product to have better market characteristics.

Drawings

FIG. 1 is an external view of a tubular structure according to the present invention;

FIG. 2 is an internal view of the tube structure of the present invention;

FIG. 3 is a schematic cross-sectional view of a tubular structure according to the present invention;

the labels in the figure are: 1-valley section, 2-peak section, 4-inner wall, 3-outer wall.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments.

As shown in fig. 1 to 3, the glass bead and glass fiber composite reinforced corrugated pipe comprises an inner wall 4 and an outer wall 3, wherein the outer wall 3 is composed of a wave crest section 2 and a wave trough section 1 which are orderly spaced, the inner wall 4 is composed of a smooth pipe body layer, and the glass beads and the glass fibers are added in the outer wall.

The corrugated pipe body structure is formed by fusing a melt into a regular pipe blank through vacuum spray cooling, and then adjusting the speed and the displacement of a module rule through a forming machine to form a continuously formed blank body and continuously cooling and shaping the pipe body.

The specific material characteristics of the composite reinforced corrugated pipe are as follows:

the composite reinforced material of the outer wall 3 comprises the following components in parts by mass: 20-40 parts of hollow glass microspheres, 20-40 parts of chopped glass fibers, 25-50 parts of calcium carbonate, 50-100 parts of high-crystalline polypropylene, 4-6 parts of maleic anhydride grafted polypropylene, 0.5-0.8 part of titanium blue pigment, 0.2-1 part of silane coupling agent KH550, 0.8-1.5 parts of stearic acid SA1801 lubricant and 0.8-1.5 parts of polyethylene wax PE 110 lubricant.

The composite reinforced material of the inner wall 4 comprises the following components in parts by mass: 50-150 parts of high-crystalline polypropylene, 50-100 parts of calcium carbonate, 1-1.2 parts of titanium dioxide pigment, 0.5-1 part of silane coupling agent KH550, 1-1.8 parts of stearic acid SA1801 lubricant and 1-1.8 parts of polyethylene wax PE 110 lubricant.

Wherein the calcium carbonate is preferably 1250-mesh ultrafine calcium carbonate.

The hollow glass beads are of a regular spherical hollow structure with the diameter of 3um, and the purchase manufacturer is China Huaxing New Material Co., Ltd, and the model is C20.

Wherein the chopped glass fiber is a glass fiber structure with the length of 5mm and the section diameter of 13 +/-1 um, and the purchasing manufacturer is Taishan glass fiber company Limited, and the model is 438T.

According to the material characteristics of above compound reinforcing bellows, can produce and distinguish bellows body structure with the colour, specifically do: the inner wall 4 is white smooth structure, and the outer wall 3 is blue corrugated structure, and the structure is characterized by an inner white smooth outer blue corrugated tube body.

The production method of the glass bead and glass fiber composite reinforced corrugated pipe comprises the following specific steps:

step one, measuring the components of the composite reinforced material required by the production of the outer wall according to a proportion, adding the components into a high-speed stirrer for stirring for 5 minutes, and after the components are uniformly mixed, discharging and adding the materials into a hopper of an outer wall extruder.

And step two, measuring the components of the composite reinforced material required by the inner wall production according to the proportion, adding the components into a high-speed stirrer, stirring for 7 minutes, discharging the materials after uniform mixing, and adding the materials into a hopper of an inner wall extruder.

Selecting a corrugated pipe extruder, a machine type SZ800, a longitude and latitude on the Shanghai production place, and setting technological parameters of a main machine (inner wall) and an auxiliary machine (outer wall), wherein the technological parameters are as follows:

starting a main attached machine, shearing, melting and extruding the mixed materials into pipe blanks in a double-screw mode, cooling and shaping the inner wall of the pipe blanks into a smooth state through a mold core, forming the outer wall of the pipe blanks into a corrugated shape through vacuum suction molding, and sintering the outer wall of the pipe blanks and the inner wall of the pipe blanks to form a cavity chamber; in the rotating process of the forming grinding tool, the primarily cooled and shaped double-wall corrugated pipe is conveyed into a cooling tank to realize further cooling, and then the corrugated pipe passes through a traction device and a cutting device, so that the finished product composite reinforced corrugated pipe is obtained.

According to the corrugated pipe obtained by the production method, the size of the pipe body structure is preferably selected, the thickness of the smooth composite layer on the inner wall is 2.4mm, the thickness of the wave crest layer on the outer wall is 3.2mm, the radius length of the wave crest section is 23.7mm, and the distance between the wave crest and the wave trough is 13.4 mm.

The preferred cut length is 6 meters, so that as the tube body of the product, each tube is 6 meters long.

Example 1

A production method of a glass bead and glass fiber composite reinforced corrugated pipe comprises the following specific steps:

step one, measuring the components of the composite reinforced material required by the production of the outer wall according to a proportion, adding the components into a high-speed stirrer for stirring for 5 minutes, and after the components are uniformly mixed, discharging and adding the materials into a hopper of an outer wall extruder.

The composite reinforced material of the outer wall comprises the following components in parts by mass: 20 parts of hollow glass microspheres, 20 parts of chopped glass fibers, 25 parts of calcium carbonate, 50 parts of high-crystalline polypropylene, 4 parts of maleic anhydride grafted polypropylene, 0.5 part of titanium blue pigment, 0.2 part of silane coupling agent KH550, 0.8 part of stearic acid SA1801 lubricant and 0.8 part of polyethylene wax PE 110 lubricant.

And step two, measuring the components of the composite reinforced material required by the inner wall production according to the proportion, adding the components into a high-speed stirrer, stirring for 7 minutes, discharging the materials after uniform mixing, and adding the materials into a hopper of an inner wall extruder.

The composite reinforced material of the inner wall comprises the following components in parts by mass: 50 parts of high-crystalline polypropylene, 50 parts of calcium carbonate, 1 part of titanium dioxide pigment, 0.5 part of silane coupling agent KH550, 1 part of stearic acid SA1801 lubricant and 1 part of polyethylene wax PE 110 lubricant.

Selecting a corrugated pipe extruder, a machine type SZ800, a longitude and latitude on the Shanghai production place, and setting technological parameters of a main machine (inner wall) and an auxiliary machine (outer wall), wherein the technological parameters are as follows:

starting a main attached machine, shearing, melting and extruding the mixed materials into pipe blanks in a double-screw mode, cooling and shaping the inner wall of the pipe blanks into a smooth state through a mold core, forming the outer wall of the pipe blanks into a corrugated shape through vacuum suction molding, and sintering the outer wall of the pipe blanks and the inner wall of the pipe blanks to form a cavity chamber; in the rotating process of the forming grinding tool, the primarily cooled and shaped double-wall corrugated pipe is conveyed into a cooling tank to realize further cooling, and then the corrugated pipe passes through a traction device and a cutting device, so that the finished product composite reinforced corrugated pipe is obtained.

According to the internally white, smooth and externally blue corrugated pipe body obtained by the production method, the size of the pipe body structure is preferably selected, the thickness of the smooth composite layer on the inner wall is 2.4mm, the thickness of the peak layer on the outer wall is 3.2mm, the radius length of the peak section is 23.7mm, the distance between the peak and the trough is 13.4mm, and the length of each pipe is 6 meters.

The produced composite reinforced corrugated pipe and the common high-density polyethylene double-wall corrugated pipe are further detected, wherein the comparison of the data obtained by detection is shown in the following table.

The table shows that the composite reinforced corrugated pipe obtained by the invention has the advantages of reasonable structure, strong compressive capacity, high ring stiffness, practical value of not less than 10 KN/square meter, low creep rate of less than 4%, good impact performance, falling weight impact TIR of less than 10%, high and low temperature resistance, normal use at-50 ℃, acid and alkali resistance, good pressure resistance and long service life.

Example 2

A production method of a glass bead and glass fiber composite reinforced corrugated pipe comprises the following specific steps:

step one, measuring the components of the composite reinforced material required by the production of the outer wall according to a proportion, adding the components into a high-speed stirrer for stirring for 5 minutes, and after the components are uniformly mixed, discharging and adding the materials into a hopper of an outer wall extruder.

The composite reinforced material of the outer wall comprises the following components in parts by mass: 40 parts of hollow glass microspheres, 40 parts of chopped glass fibers, 50 parts of calcium carbonate, 100 parts of high-crystalline polypropylene, 6 parts of maleic anhydride grafted polypropylene, 0.8 part of titanium blue pigment, 1 part of silane coupling agent KH550, 1.5 parts of stearic acid SA1801 lubricant and 1.5 parts of polyethylene wax PE 110 lubricant.

And step two, measuring the components of the composite reinforced material required by the inner wall production according to the proportion, adding the components into a high-speed stirrer, stirring for 7 minutes, discharging the materials after uniform mixing, and adding the materials into a hopper of an inner wall extruder.

The composite reinforced material of the inner wall comprises the following components in parts by mass: 150 parts of high-crystalline polypropylene, 100 parts of calcium carbonate, 1.2 parts of titanium dioxide pigment, 1 part of silane coupling agent KH550, 1.8 parts of stearic acid SA1801 lubricant and 1.8 parts of polyethylene wax PE 110 lubricant.

Selecting a corrugated pipe extruder, a machine type SZ800, a longitude and latitude on the Shanghai production place, and setting technological parameters of a main machine (inner wall) and an auxiliary machine (outer wall), wherein the technological parameters are as follows:

starting a main attached machine, shearing, melting and extruding the mixed materials into pipe blanks in a double-screw mode, cooling and shaping the inner wall of the pipe blanks into a smooth state through a mold core, forming the outer wall of the pipe blanks into a corrugated shape through vacuum suction molding, and sintering the outer wall of the pipe blanks and the inner wall of the pipe blanks to form a cavity chamber; in the rotating process of the forming grinding tool, the primarily cooled and shaped double-wall corrugated pipe is conveyed into a cooling tank to realize further cooling, and then the corrugated pipe passes through a traction device and a cutting device, so that the finished product composite reinforced corrugated pipe is obtained.

According to the internally white, smooth and externally blue corrugated pipe body obtained by the production method, the size of the pipe body structure is preferably selected, the thickness of the smooth composite layer on the inner wall is 2.4mm, the thickness of the peak layer on the outer wall is 3.2mm, the radius length of the peak section is 23.7mm, the distance between the peak and the trough is 13.4mm, and the length of each pipe is 6 meters.

The produced composite reinforced corrugated pipe and the common high-density polyethylene double-wall corrugated pipe are further detected, wherein the comparison of the data obtained by detection is shown in the following table.

The table shows that the composite reinforced corrugated pipe obtained by the invention has the advantages of reasonable structure, strong compressive capacity, high ring stiffness, practical value of not less than 10 KN/square meter, low creep rate of less than 4%, good impact performance, falling weight impact TIR of less than 10%, high and low temperature resistance, normal use at-50 ℃, acid and alkali resistance, good pressure resistance and long service life.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.