Wear-resistant and corrosion-resistant PBT (polybutylene terephthalate) engineering plastic

Abstract

The utility model belongs to the technical field of PBT (Polybutylece Terephthalate) engineering plastics, and discloses a wear-resistant and corrosion-resistant PBT engineering plastic, which comprises a PBT engineering plastic main body, a protective sleeve is sleeved on the PBT engineering plastic main body, a sealing ring is connected to the inner wall of the protective sleeve close to the edge, the inner wall of the sealing ring clings to the outer surface of the PBT engineering plastic main body, and the outer surface of the PBT engineering plastic main body is provided with a wear-resistant and corrosion-resistant PBT engineering plastic. A filling cavity is formed in the inner wall of the protective sleeve, the filling cavity is filled with adsorption filler, a partition net is arranged at the position, close to the edge, of the filling cavity, the partition net is fixedly connected with the protective sleeve, and the protective sleeve is composed of a first-stage half pipe body and a second-stage half pipe body. The first-stage half pipe body and the second-stage half pipe body are fixedly connected with a first-stage fixing lug and a second-stage fixing lug respectively, a protective layer is formed on the outer side of the PBT engineering plastic main body, abrasion and corrosion of the external environment to the PBT engineering plastic main body are greatly reduced, and great impact resistance is provided to protect the PBT engineering plastic main body, so that the service life of the PBT engineering plastic main body is prolonged, and the service life of the PBT engineering plastic main body is prolonged. The service life of the PBT engineering plastic main body is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of PBT engineering plastics, in particular to a wear-resistant and corrosion-resistant PBT engineering plastic. Background Art

[0002] PBT engineering plastic is an engineering plastic with excellent performance. PBT engineering plastic has the following remarkable characteristics: excellent mechanical properties, with high strength, rigidity and toughness, able to withstand large external forces and impacts; good heat resistance, can maintain stable performance in a wide temperature range, usually can be used for a long time at around 140°C; excellent electrical properties, with good insulation properties and low dielectric loss, suitable for the electronic and electrical fields; chemical corrosion resistance, with a certain resistance to many chemical substances.

[0003] PBT engineering plastics are often used as pipes for conveying fluids. However, due to the influence of the use environment, the outer surface of PBT engineering plastic pipes will be worn and corroded, which will affect the service life of PBT engineering plastics.

[0004] Therefore, in view of the above problems, a wear-resistant and corrosion-resistant PBT engineering plastic is proposed. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a wear-resistant and corrosion-resistant PBT engineering plastic, which has the advantages of wear-resistant, corrosion-resistant and impact-resistant.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant and corrosion-resistant PBT engineering plastic, comprising a PBT engineering plastic main body, a protective sleeve is provided on the PBT engineering plastic main body, and a protective layer is formed on the outside of the PBT engineering plastic main body, which greatly reduces the wear and corrosion of the PBT engineering plastic main body by the external environment, and provides great impact resistance to protect the PBT engineering plastic main body and extend the service life of the PBT engineering plastic main body. A sealing ring is connected to the inner wall of the protective sleeve near the edge, and the inner wall of the sealing ring is close to the outer surface of the PBT engineering plastic main body. A filling cavity is provided on the inner wall of the protective sleeve, and the filling cavity is filled with adsorption filler. A partition net is provided near the edge of the filling cavity, and the partition net is fixedly connected to the protective sleeve to absorb water vapor between the protective sleeve and the PBT engineering plastic main body to prevent water vapor from corroding the outer surface of the PBT engineering plastic main body, thereby further improving the service life of the PBT engineering plastic main body.

[0007] Preferably, the protective sleeve is composed of a primary half-tube body and a secondary half-tube body, the primary half-tube body and the secondary half-tube body are respectively fixedly connected with a primary fixing ear and a secondary fixing ear, a fixing bolt is connected between the primary fixing ear and the secondary fixing ear, and the protective sleeve is composed of two parts, which are movably connected to each other to facilitate the installation and disassembly of the protective sleeve.

[0008] Preferably, the primary fixing ear and the secondary fixing ear are both provided with through holes, and the screw rod of the fixing bolt passes through the through holes and is threadedly connected with a nut.

[0009] Preferably, a sealing gasket is provided between the primary fixing ear and the secondary fixing ear, and the sealing gasket is provided with a perforation corresponding to the through hole. The sealing gasket increases the sealing between the primary fixing ear and the secondary fixing ear to prevent water vapor and the like from entering.

[0010] Preferably, the outer walls of the first-stage half-tube body and the second-stage half-tube body are both provided with reinforced arc plates to further enhance the impact resistance of the protective sleeve.

[0011] Preferably, a gap is formed between the protective sleeve and the PBT engineering plastic body, and the sealing rings are arranged at both ends of the gap. The formation of the gap can avoid adhesion between the protective sleeve and the PBT engineering plastic body, so as not to affect the removal of the protective sleeve.

[0012] Preferably, the inner diameter of the protective sleeve is larger than the outer diameter of the PBT engineering plastic body.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model forms a protective layer on the outside of the PBT engineering plastic body by setting a protective sleeve, which greatly reduces the wear and corrosion of the PBT engineering plastic body by the external environment, and provides great impact resistance to protect the PBT engineering plastic body and extend the service life of the PBT engineering plastic body;

[0015] 2. The utility model can absorb water vapor between the protective sleeve and the PBT engineering plastic body by setting up the filling cavity, adsorption filler, partition net and other structures, so as to prevent water vapor from corroding the outer surface of the PBT engineering plastic body and further improve the service life of the PBT engineering plastic body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the first-stage half-tube body of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the two-stage half-tube body of the utility model;

[0020] Figure 5 It is a schematic cross-sectional structure diagram of the first-stage half-tube body of the utility model.

[0021] In the figure: 1. PBT engineering plastic body;

[0022] 2. Protective sleeve; 201. Primary half-tube body; 202. Secondary half-tube body; 203. Primary fixing ear; 204. Secondary fixing ear; 205. Fixing bolt;

[0023] 3. Sealing ring; 4. Filling cavity; 5. Adsorption filler; 6. Spacer; 7. Through hole; 8. Nut; 9. Sealing gasket; 10. Perforation; 11. Reinforcement arc plate; 12. Gap. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 5 As shown, the utility model provides a wear-resistant and corrosion-resistant PBT engineering plastic, including a PBT engineering plastic body 1, a protective sleeve 2 is sleeved on the PBT engineering plastic body 1, and a protective layer is formed on the outside of the PBT engineering plastic body 1, which greatly reduces the wear and corrosion of the PBT engineering plastic body 1 by the external environment, and provides great impact resistance to protect the PBT engineering plastic body 1 and extend the service life of the PBT engineering plastic body 1. A sealing ring 3 is connected to the inner wall of the protective sleeve 2 near the edge, and the inner wall of the sealing ring 3 is closely attached to the outer surface of the PBT engineering plastic body 1, and the sealing ring 3 can avoid corrosive substances Enter between the protective sleeve 2 and the BT engineering plastic main body 1 to avoid corrosion of the outer surface of the BT engineering plastic main body 1. A filling cavity 4 is provided on the inner wall of the protective sleeve 2. The filling cavity 4 is filled with an adsorption filler 5. The adsorption filler 5 can be set as a mixture of activated carbon and desiccant particles. A partition net 6 is provided near the edge of the filling cavity 4. The partition net 6 prevents the adsorption filler 5 from leaking, but does not affect the adsorption of water vapor. The partition net 6 is fixedly connected to the protective sleeve 2, and can absorb water vapor between the protective sleeve 2 and the PBT engineering plastic main body 1 to prevent water vapor from corroding the outer surface of the PBT engineering plastic main body 1, thereby further improving the service life of the PBT engineering plastic main body 1.

[0026] Specifically, the protective sleeve 2 is composed of a primary half-tube body 201 and a secondary half-tube body 202. The protective sleeve 2 is divided into two parts for easy installation and disassembly. The primary half-tube body 201 and the secondary half-tube body 202 are respectively fixedly connected with a primary fixing ear 203 and a secondary fixing ear 204, and a fixing bolt 205 is connected between the primary fixing ear 203 and the secondary fixing ear 204.

[0027] Furthermore, a through hole 7 is provided on each of the primary fixing ear 203 and the secondary fixing ear 204 , and a screw rod of the fixing bolt 205 passes through the through hole 7 and is threadedly connected with a nut 8 .

[0028] Furthermore, a sealing gasket 9 is provided between the primary fixing ear 203 and the secondary fixing ear 204. The sealing gasket 9 is provided with a perforation 10 corresponding to the through hole 7. The sealing gasket 9 increases the sealing between the primary fixing ear 203 and the secondary fixing ear 204 to prevent water vapor and the like from entering.

[0029] It is worth noting that the outer walls of the first-stage half-tube body 201 and the second-stage half-tube body 202 are both provided with a reinforcing arc plate 11 to further enhance the impact resistance of the protective sleeve 2 .

[0030] It is worth noting that a gap 12 is formed between the protective sleeve 2 and the PBT engineering plastic body 1, and the sealing ring 3 is arranged at both ends of the gap 12. The formation of the gap 12 can avoid adhesion between the protective sleeve 2 and the PBT engineering plastic body 1, so as not to affect the disassembly of the protective sleeve 2.

[0031] It is worth mentioning that the inner diameter of the protective sleeve 2 is larger than the outer diameter of the PBT engineering plastic body 1 .

[0032] Working principle and process: place the PBT engineering plastic body 1 between the corresponding first-stage half-tube body 201 and the second-stage half-tube body 202, make the first-stage half-tube body 201 and the second-stage half-tube body 202 close to each other, and the first-stage fixing ear 203 and the second-stage fixing ear 204 close to each other, place the sealing gasket 9 between the first-stage fixing ear 203 and the second-stage fixing ear 204, and then install the fixing bolt 205, so as to connect the first-stage half-tube body 201 and the second-stage half-tube body 202 to form a protective sleeve 2, and form a protective layer on the outside of the PBT engineering plastic body 1, which greatly reduces the external environment The impact of the PBT engineering plastic body 1, and provides great impact resistance to protect the PBT engineering plastic body 1 and extend the service life of the PBT engineering plastic body 1. A gap 12 is formed between the protective sleeve 2 and the PBT engineering plastic body 1, and sealing rings 3 are arranged at both ends of the gap to prevent corrosive substances from entering between the PBT engineering plastic body 1 and the PBT engineering plastic body 1. The adsorption filler 5 in the protective sleeve 2 can absorb water vapor to prevent water vapor from corroding the outer surface of the PBT engineering plastic body 1, further protecting the PBT engineering plastic body 1 and extending the service life of the PBT engineering plastic body 1.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant and corrosion-resistant PBT engineering plastic, comprising a PBT engineering plastic body (1), characterized in that: The PBT engineering plastic body (1) is sleeved with a protective sleeve (2); a sealing ring (3) is connected to the inner wall of the protective sleeve (2) near the edge; the inner wall of the sealing ring (3) is in close contact with the outer surface of the PBT engineering plastic body (1); a filling cavity (4) is provided on the inner wall of the protective sleeve (2); the filling cavity (4) is filled with an adsorption filler (5); a partition net (6) is provided near the edge of the filling cavity (4); the partition net (6) is fixedly connected to the protective sleeve (2).

2. The wear-resistant and corrosion-resistant PBT engineering plastic according to claim 1, characterized in that: The protective sleeve (2) is composed of a primary half-tube body (201) and a secondary half-tube body (202); the primary half-tube body (201) and the secondary half-tube body (202) are respectively fixedly connected with a primary fixing ear (203) and a secondary fixing ear (204); a fixing bolt (205) is connected between the primary fixing ear (203) and the secondary fixing ear (204).

3. The wear-resistant and corrosion-resistant PBT engineering plastic according to claim 2, characterized in that: The primary fixing ear (203) and the secondary fixing ear (204) are both provided with a through hole (7), and the screw rod of the fixing bolt (205) passes through the through hole (7) and is threadedly connected with a nut (8).

4. The wear-resistant and corrosion-resistant PBT engineering plastic according to claim 2, characterized in that: A sealing gasket (9) is provided between the primary fixing ear (203) and the secondary fixing ear (204), and a through hole (10) corresponding to the through hole (7) is provided on the sealing gasket (9).

5. The wear-resistant and corrosion-resistant PBT engineering plastic according to claim 2, characterized in that: The outer walls of the first-stage half-tube body (201) and the second-stage half-tube body (202) are both provided with a reinforcing arc plate (11).

6. The wear-resistant and corrosion-resistant PBT engineering plastic according to claim 1, characterized in that: A gap (12) is formed between the protective sleeve (2) and the PBT engineering plastic body (1), and the sealing ring (3) is arranged at both ends of the gap (12).

7. The wear-resistant and corrosion-resistant PBT engineering plastic according to claim 1, characterized in that: The inner diameter of the protective sleeve (2) is greater than the outer diameter of the PBT engineering plastic body (1).

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