CN111251577A - Glue melting cylinder for plastic machine and production process thereof - Google Patents
Glue melting cylinder for plastic machine and production process thereof Download PDFInfo
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- CN111251577A CN111251577A CN202010056841.XA CN202010056841A CN111251577A CN 111251577 A CN111251577 A CN 111251577A CN 202010056841 A CN202010056841 A CN 202010056841A CN 111251577 A CN111251577 A CN 111251577A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/68—Barrels or cylinders
- B29C48/6801—Barrels or cylinders characterised by the material or their manufacturing process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/62—Barrels or cylinders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to a glue melting cylinder for a plastic machine, which comprises an outer layer pipe, wherein at least 2 sections of inner layer pipes are fixed in a pipe cavity of the outer layer pipe in parallel along the axis of the outer layer pipe, the axis of each inner layer pipe is collinear with the axis of the outer layer pipe, and a high-wear-resistance and high-corrosion-resistance layer is arranged on the inner pipe wall of each inner layer pipe. The glue melting cylinder for the plastic machine has the characteristics of good abrasion resistance and corrosion resistance of the inner pipe wall, long service life, contribution to reducing the maintenance cost of the machine and the like. The invention also relates to a production process of the molten rubber cylinder for the plastic machine, which is characterized in that at least 2 sections of inner-layer pipes are formed, after the inner pipe walls of the inner-layer pipes are uniformly attached with the high-wear-resistant corrosion-resistant layers, the inner-layer pipes are shorter and convenient to roughly process the high-wear-resistant corrosion-resistant layers, so that after the inner-layer pipes and the outer-layer pipes are fixed together, only the inner holes of the molten rubber cylinder need to be finely processed and polished in a short time.
Description
Technical Field
The invention relates to the technical field of plastic machine accessory production, in particular to a glue melting cylinder for a plastic machine; the invention also relates to a production process of the glue melting cylinder for the plastic machine.
Background
The molten rubber barrel is an important component of the plastic machine, and is matched with the pushing screw rod for use, when in use, the molten rubber material in the molten rubber barrel is pushed out by the pushing screw rod, and the pushed rubber material passes through the die under a set pressure to form a product.
At present, most of the glue melting cylinders on the market adopt an integrated pipe body during production, and in order to improve the wear resistance of the inner hole wall surface of the pipe body, wear-resistant materials are uniformly distributed on the inner hole wall surface of the pipe body during production.
The production process of the prior glue melting cylinder for the plastic machine comprises the following two production processes:
one is that after 38 chromium molybdenum aluminum round steel is made into a tube body of the melt adhesive tube, a wear-resistant layer is formed in the inner tube wall of the tube body through nitriding treatment, although the production method is simple in process and low in cost, the hardness layer on the nitriding surface on the inner tube wall of the tube body is only 0.15-0.3 mm, so that the hardness layer on the nitriding surface is easily worn away in use, and the melt adhesive tube produced by the production process has the problems of poor wear resistance and corrosion resistance and short service life.
The other method is that after the tube body of the glue melting tube is made of common carbon steel, iron-based alloy is attached to the inner tube wall of the tube body in a centrifugal casting mode, then the inner hole of the tube body is processed, and finally the finished product is obtained through polishing. In the production process, because the centrifugally cast cylindrical part has the problems of rough free surface of an inner hole and large size error, in order to make the inner hole standard, the machining allowance of a wear-resistant layer formed by iron-based alloy in a centrifugally cast pipe body is large, which causes difficult machining after centrifugal casting, in particular, centrifugal casting is difficult to realize when a plurality of longer or larger glue cylinders are produced by adopting the production process, because the difficulty of machining the wear-resistant layer in the inner hole of the glue cylinder after centrifugal casting is large and the time consumption is very long, the production process has certain limitation in production, the wear-resistant layer can only be formed by selecting iron-based alloy materials with relatively low hardness when the longer or larger glue cylinders are produced, and the wear resistance and the corrosion resistance of the iron-based alloy are also poor, so that the service life of the melt-adhesive cylinder produced by the process is not long.
Disclosure of Invention
The invention aims to provide a plastic melting cylinder for a plastic machine, which has the advantages of simple structure, reasonable design, convenient production, high efficiency, good abrasion resistance and corrosion resistance of the inner pipe wall, long service life, contribution to reducing the maintenance cost of the machine and the like.
The technical scheme of the invention is realized as follows: a molten rubber cylinder for plastic machine is composed of an external layer of tubes, at least 2 segments of internal layer of tubes fixed in the cavity of external layer of tubes along their axes, and high-antiwear and anticorrosion layer on the inner wall of internal layer of tubes.
Further, the high-wear-resistance and corrosion-resistant layer is preferably made of nickel-based alloy or made of nickel-based alloy and cermet; when the high wear-resistant and corrosion-resistant layer is made of a nickel-based alloy and a cermet, the weight of the cermet is preferably less than or equal to 60% of the sum of the weights of the nickel-based alloy and the cermet.
Still further, the outer layer pipe is preferably made of carbon steel or alloy steel, and the inner layer pipe is also preferably made of carbon steel or alloy steel.
This a plastic machine melten gel section of thick bamboo's beneficial effect: the glue melting cylinder for the plastic machine has the advantages that the plurality of inner-layer pipes are fixed in the outer-layer pipe, the inner pipe wall of each inner-layer pipe is provided with the high-abrasion-resistant corrosion-resistant layer, the design of at least 2 sections of inner-layer pipes is formed firstly, so that the high-abrasion-resistant corrosion-resistant layer in the inner-layer pipe can be conveniently subjected to one-time rough machining before the inner-layer pipe is fixed with the outer-layer pipe, the inner-layer pipe can be formed into the high-abrasion-resistant corrosion-resistant layer by adopting a high-abrasion-resistant material, and after the inner-layer pipe is fixed in a longer or larger outer-layer pipe, the inner hole of the inner-layer pipe can be polished to reach the standard through short-time finish machining polishing.
The invention also aims to provide a production process of the plastic machine melt rubber cylinder, and the production process of the plastic machine melt rubber cylinder has the advantages of simple production process, convenience in processing, high production efficiency, capability of producing plastic machine melt rubber cylinder products with good wear resistance and corrosion resistance and the like.
The technical scheme of the invention is realized as follows: a production process of a glue melting cylinder for a plastic machine is characterized by comprising the following production steps:
1) processing an outer layer pipe and at least 2 sections of inner layer pipes;
2) uniformly attaching a high-wear-resistant corrosion-resistant layer on the inner pipe wall of each inner-layer pipe to obtain a high-wear-resistant corrosion-resistant inner-layer pipe;
3) carrying out rough machining on the inner hole of the high-abrasion-resistance corrosion-resistant inner-layer pipe obtained in the step 2);
4) heating the outer layer pipe, and sequentially putting the high-wear-resistance corrosion-resistant inner layer pipes into the pipe cavity of the outer layer pipe;
5) cooling the outer layer pipe to ensure that the high wear-resistant and corrosion-resistant inner layer pipe and the outer layer pipe are fixed together through hot matching to form a molten rubber cylinder;
6) and (3) performing finish machining on the inner hole and the outer diameter of the molten rubber cylinder obtained in the step 5), wherein the finish machining on the inner hole and the outer diameter of the molten rubber cylinder is mainly used for enabling the axis of the inner hole of the high-abrasion-resistance corrosion-resistant inner-layer pipe to be collinear with the axis of the outer-layer pipe, and thus a finished product is obtained.
The length of each inner layer pipe in the step 1) is preferably in the range of 200 mm-500 mm, and the length of the outer layer pipe is equal to the sum of the lengths of all the inner layer pipes.
After the inner hole of the high wear-resistant corrosion-resistant inner-layer pipe is roughly processed in the step 3), the single-side allowance of the high wear-resistant corrosion-resistant layer on the inner hole of the high wear-resistant corrosion-resistant inner-layer pipe is preferably in the range of 0.1-0.2 mm.
The outer layer pipe in the step 1) is preferably made of carbon steel or alloy steel, and the inner hole of the outer layer pipe is further subjected to finish machining in the step 1); the inner tube in step 1) is also preferably made of carbon steel or alloy steel, and the inner bore of the inner tube is also roughly machined in step 1).
The highly wear-resistant and corrosion-resistant layer is preferably made of a nickel-based alloy.
In order to realize that the high-wear-resistance corrosion-resistant layer is uniformly attached to the inner-layer pipe, the step 2) is to attach the high-wear-resistance corrosion-resistant layer to the inner-layer pipe in a centrifugal casting mode; the temperature during centrifugal casting is preferably controlled within the range of 1000 ℃ to 1250 ℃.
In order to facilitate the control of the temperature of the inner-layer pipe in the centrifugal casting process and control the thickness of the high-wear-resistant and corrosion-resistant layer formed after the inner-layer pipe is centrifugally cast more accurately, the difference between the outer diameter and the inner hole diameter of the inner-layer pipe in the step 1) is within the range of 10-20 mm.
In order to ensure that the combination of the outer layer pipe and the high wear-resistant corrosion-resistant inner layer pipe is more accurate and firm during the production of the production process of the rubber melting cylinder for the plastic machine, the step 3) is also provided with a process for carrying out finish machining on the outer diameter of the high wear-resistant corrosion-resistant inner layer pipe, and the diameter of the outer diameter of the high wear-resistant corrosion-resistant inner layer pipe obtained in the step 3) is 0.1-0.2 mm larger than the diameter of the inner hole of the outer layer pipe.
The production process of the glue melting cylinder for the plastic machine has the beneficial effects that: the production process of the melt-adhesive tube for the plastic machine has the advantages that at least 2 sections of inner-layer tubes are formed, high-abrasion-resistant and corrosion-resistant layers are uniformly attached to the inner tube walls of the inner-layer tubes, the mode of connecting the sections of the inner-layer tubes into the length required by the melt-adhesive tube enables the high-abrasion-resistant and corrosion-resistant layers to be uniformly attached to shorter tube bodies, and the single-side processing allowance of materials attached to the inner-layer tubes cannot be too thick, so that the high-abrasion-resistant and corrosion-resistant layers in the inner-layer tubes can be conveniently rough processed, the inner holes of the inner-layer tubes can be polished to reach the standard only by finish processing polishing in a short time after the inner-layer tubes and the outer-layer tubes are fixed together, and the production process of the melt-adhesive tube for the plastic machine has the advantages of simple production process, convenience in processing, high production efficiency, specification of the melt-adhesive tube, capability of producing.
Drawings
Fig. 1 is a schematic structural view of embodiment 1.
Description of reference numerals: 1-outer layer tube; 2-inner layer tube; 3-high abrasion and corrosion resistant layer.
Detailed Description
Example 1
As shown in fig. 1, the present embodiment is a melt-adhesive cartridge for a plastic machine, including an outer layer tube 1, at least 2 sections of inner layer tubes 2 are fixed side by side along an axis of the outer layer tube 1 in a tube cavity of the outer layer tube 1, the melt-adhesive cartridge for a plastic machine is formed with 3 sections of inner layer tubes 2, lengths and apertures of the inner layer tubes 2 are the same, and a length of each inner layer tube 2 is in a range of 200mm to 500mm, a length of the inner layer tube 2 of the present embodiment is specifically 400mm, a sum of the lengths of the 3 inner layer tubes 2 is the same as a length of the outer layer tube 1, an axis of each inner layer tube 2 is collinear with the axis of the outer layer tube 1, a high abrasion-resistant and corrosion-resistant layer 3 is provided on an inner tube wall of each inner layer tube 2, and the high abrasion-resistant and corrosion-resistant layer. The outer layer pipe 1 is made of 45# steel, and the inner layer pipe 2 is made of 20# steel. The design of forming at least 2 sections of inner layer pipes 2 firstly facilitates the rough processing of the high wear-resistant corrosion-resistant layer 3 in the inner layer pipe 2 before the inner layer pipe 2 is fixed with the outer layer pipe 1, so that the inner layer pipe 2 can adopt high wear-resistant corrosion-resistant materials to form the high wear-resistant corrosion-resistant layer 3, and after the inner layer pipe 2 is fixed in a longer or larger outer layer pipe 1, the inner hole of the inner layer pipe 2 can be polished to reach the standard by finish machining polishing in a short time.
Example 2
The difference between this embodiment and embodiment 1 is that the high abrasion-resistant layer is made of a nickel-based alloy and a cermet, the cermet is tungsten carbide, the weight of the cermet is less than or equal to 60% of the sum of the weights of the nickel-based alloy and the cermet, and the weight of the cermet in this embodiment is specifically equal to 40% of the sum of the weights of the nickel-based alloy and the cermet. The nickel-based alloy and the metal ceramic are adopted to form the high-wear-resistance corrosion-resistant layer, so that the high-wear-resistance corrosion-resistant layer of the plastic machine melt-rubber cylinder has higher hardness and better wear resistance.
Example 3
The embodiment is a production technology of a plastic machine melt adhesive cylinder, and the production technology of the plastic machine melt adhesive cylinder is used for manufacturing the melt adhesive cylinder with the integral length of 1200mm, the inner hole diameter of 50mm and the outer diameter of 110mm, and comprises the following production steps:
1) processing an outer layer pipe and 3 sections of inner layer pipes; the length of the outer layer pipe is 1200mm, and the length of each inner layer pipe is 400 mm; the outer layer pipe in the step 1) is made of 45# steel, the 45# steel belongs to a carbon steel material, the inner hole of the outer layer pipe is further subjected to finish machining in the step 1), the diameter of the finished inner hole of the outer layer pipe is 65mm, and the outer diameter of the outer layer pipe is 115 mm; the inner layer pipe in the step 1) is made of 20# steel, the 20# steel belongs to a carbon steel material, the inner hole of the inner layer pipe is also roughly processed in the step 1), the diameter of the inner hole of the inner layer pipe is 53mm after the inner layer pipe is roughly processed, and the diameter of the outer diameter of the inner layer pipe is 70 mm.
2) Uniformly attaching a high-wear-resistant corrosion-resistant layer on the inner pipe wall of each inner-layer pipe to obtain a high-wear-resistant corrosion-resistant inner-layer pipe, wherein the diameter of an inner hole of the high-wear-resistant corrosion-resistant inner-layer pipe is 49 mm; the high wear-resistant corrosion-resistant layer is made of nickel-based alloy, and the step 2) is that the high wear-resistant corrosion-resistant layer is attached to the inner-layer pipe in a centrifugal casting mode; the temperature at the time of centrifugal casting was 1100 ℃;
3) roughly processing the inner hole of the high wear-resistant corrosion-resistant inner-layer pipe obtained in the step 2), wherein the diameter of the inner hole of the high wear-resistant corrosion-resistant inner-layer pipe obtained in the step 3) is 49.7 mm;
4) heating the outer layer pipe, and sequentially putting the high-wear-resistance corrosion-resistant inner layer pipes into the pipe cavity of the outer layer pipe; the step is mainly that the diameter of the inner hole of the outer layer pipe is larger than the diameter of the outer diameter of the high wear-resistant corrosion-resistant inner layer pipe after the outer layer pipe is heated, so that the high wear-resistant corrosion-resistant inner layer pipe can be conveniently inserted into the inner hole of the outer layer pipe;
5) cooling the outer layer pipe to ensure that the high wear-resistant and corrosion-resistant inner layer pipe and the outer layer pipe are fixed together through hot matching to form a molten rubber cylinder; the step is mainly that the inner hole of the outer layer pipe which is enlarged after being heated shrinks after being cooled, so that the inner hole wall surface of the outer layer pipe and the outer diameter wall surface of the inner layer pipe with high wear resistance and corrosion resistance are extruded and fixed together;
6) and (3) performing finish machining on the inner hole and the outer diameter of the molten rubber cylinder obtained in the step 5), wherein the finish machining on the inner hole and the outer diameter of the molten rubber cylinder is mainly used for enabling the axis of the inner hole of the high-abrasion-resistance corrosion-resistant inner-layer pipe to be collinear with the axis of the outer-layer pipe to obtain a finished product, the structure of the finished product is the same as that of the embodiment 1, and the length of the finished product is 1200mm, the diameter of the inner hole is 50mm, and the diameter of the outer diameter is 110 mm.
In order to enable the production process of the rubber melting cylinder for the plastic machine to be more accurate and firm in combination of the outer layer pipe and the high-wear-resistance corrosion-resistant inner layer pipe during production, the step 3) is also provided with a process for carrying out finish machining on the outer diameter of the high-wear-resistance corrosion-resistant inner layer pipe, the finish machining process is used for machining the outer diameter of the high-wear-resistance corrosion-resistant inner layer pipe to 65.1mm, and the outer diameter of the high-wear-resistance corrosion-resistant inner layer pipe is larger than the inner hole diameter of the outer layer pipe at normal temperature, so that the inner hole wall surface of the outer layer pipe and the outer diameter wall surface of the high-wear-resistance corrosion-resistant inner layer pipe can be extruded and fixed together after.
The production process of the melt-adhesive tube for the plastic machine has the advantages that at least 2 sections of inner-layer tubes are formed, high-abrasion-resistant and corrosion-resistant layers are uniformly attached to the inner tube walls of the inner-layer tubes, the mode of connecting the sections of the inner-layer tubes into the length required by the melt-adhesive tube enables the high-abrasion-resistant and corrosion-resistant layers to be uniformly attached to shorter tube bodies, and the single-side processing allowance of materials attached to the inner-layer tubes cannot be too thick, so that the high-abrasion-resistant and corrosion-resistant layers in the inner-layer tubes can be conveniently rough processed, the inner holes of the inner-layer tubes can be polished to reach the standard only by finish processing polishing in a short time after the inner-layer tubes and the outer-layer tubes are fixed together, and the production process of the melt-adhesive tube for the plastic machine has the advantages of simple production process, convenience in processing, high production efficiency, specification of the melt-adhesive tube, capability of producing.
Example 4
The present embodiment is different from embodiment 3 in that the material constituting the high wear-resistant layer is different, the high wear-resistant layer in the present embodiment is made of a nickel-based alloy and a cermet, the cermet is tungsten carbide, the weight of the cermet is less than or equal to 60% of the sum of the weights of the nickel-based alloy and the cermet, and the weight of the cermet in the present embodiment is specifically equal to 40% of the sum of the weights of the nickel-based alloy and the cermet. The nickel-based alloy and the metal ceramic are adopted to form the high-wear-resistance corrosion-resistant layer, so that the high-wear-resistance corrosion-resistant layer of the product produced by the production process of the molten rubber cylinder for the plastic machine has higher hardness and better wear resistance.
Claims (10)
1. The utility model provides a melten gel section of thick bamboo for plastic machine which characterized in that: the pipe comprises an outer layer pipe, at least 2 sections of inner layer pipes are fixed in a pipe cavity of the outer layer pipe side by side along the axis of the outer layer pipe, the axis of each inner layer pipe is collinear with the axis of the outer layer pipe, and a high-abrasion-resistance and corrosion-resistance layer is arranged on the inner pipe wall of each inner layer pipe.
2. The glue melting cylinder for plastic machines as claimed in claim 1, wherein: the high-wear-resistance corrosion-resistant layer is made of nickel-based alloy or nickel-based alloy and cermet; when the high-wear-resistance corrosion-resistant layer is made of the nickel-based alloy and the metal ceramic, the weight of the metal ceramic is less than or equal to 60% of the sum of the weight of the nickel-based alloy and the weight of the metal ceramic.
3. A production process of a melt adhesive cylinder for a plastic machine is characterized by comprising the following steps: comprises the following production steps:
1) processing an outer layer pipe and at least 2 sections of inner layer pipes;
2) uniformly attaching a high-wear-resistant corrosion-resistant layer on the inner pipe wall of each inner-layer pipe to obtain a high-wear-resistant corrosion-resistant inner-layer pipe;
3) carrying out rough machining on the inner hole of the high-abrasion-resistance corrosion-resistant inner-layer pipe obtained in the step 2);
4) heating the outer layer pipe, and sequentially putting the high-wear-resistance corrosion-resistant inner layer pipes into the pipe cavity of the outer layer pipe;
5) cooling the outer layer pipe to ensure that the high wear-resistant and corrosion-resistant inner layer pipe and the outer layer pipe are fixed together through hot matching to form a molten rubber cylinder;
6) and (5) performing finish machining on the inner hole and the outer diameter of the molten rubber cylinder obtained in the step 5) to obtain a finished product.
4. The process for producing a melt-adhesive cartridge for plastic machines according to claim 3, wherein: the length of each inner layer pipe in the step 1) is within the range of 200 mm-500 mm, and the length of the outer layer pipe is equal to the sum of the lengths of all the inner layer pipes.
5. The process for producing a melt-adhesive cartridge for plastic machines according to claim 3, wherein: after the inner hole of the high wear-resistant corrosion-resistant inner-layer pipe is roughly processed in the step 3), the single-side allowance of the high wear-resistant corrosion-resistant layer on the inner hole of the high wear-resistant corrosion-resistant inner-layer pipe is in the range of 0.1-0.2 mm.
6. The process for producing a melt-adhesive cartridge for plastic machines according to claim 3, wherein: the outer layer pipe in the step 1) is made of carbon steel or alloy steel, and the inner hole of the outer layer pipe is further subjected to finish machining in the step 1); the inner-layer tube in the step 1) is also made of carbon steel or alloy steel, and the inner hole of the inner-layer tube is also subjected to rough machining in the step 1).
7. The process for producing a melt-adhesive cartridge for plastic machines according to claim 3, 4, 5 or 6, wherein: the high wear-resistant and corrosion-resistant layer is made of a nickel-based alloy.
8. The process for producing a melt-adhesive cartridge for plastic machines according to claim 3, 4, 5 or 6, wherein: the high-abrasion-resistance corrosion-resistant layer is made of nickel-based alloy and metal ceramic, and the weight of the metal ceramic is less than or equal to 60% of the sum of the weight of the nickel-based alloy and the weight of the metal ceramic.
9. The process for producing a melt-adhesive cartridge for plastic machines according to claim 3, wherein: the step 2) is that a high abrasion-resistant and corrosion-resistant layer is attached to the inner-layer pipe in a centrifugal casting mode; the temperature during centrifugal casting is controlled within the range of 1000-1250 ℃.
10. The process for producing a melt-adhesive cartridge for plastic machines according to claim 3, 5 or 6, wherein: the step 3) also comprises a process of finish machining the outer diameter of the high wear-resistant corrosion-resistant inner-layer pipe, and the diameter of the outer diameter of the high wear-resistant corrosion-resistant inner-layer pipe obtained in the step 3) is 0.1-0.2 mm larger than that of the inner hole of the outer-layer pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010056841.XA CN111251577A (en) | 2020-01-19 | 2020-01-19 | Glue melting cylinder for plastic machine and production process thereof |
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| CN202010056841.XA CN111251577A (en) | 2020-01-19 | 2020-01-19 | Glue melting cylinder for plastic machine and production process thereof |
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Cited By (1)
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| CN113649772A (en) * | 2021-08-17 | 2021-11-16 | 江苏三条鱼新材料科技有限公司 | Production process of high-temperature structural ceramic/metal composite pipe for aluminum alloy die casting machine |
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Application publication date: 20200609 |