CN103481495A - Heating device and plastifying device used for improving cable inner end plastifying quality - Google Patents
Heating device and plastifying device used for improving cable inner end plastifying quality Download PDFInfo
- Publication number
- CN103481495A CN103481495A CN201310424948.5A CN201310424948A CN103481495A CN 103481495 A CN103481495 A CN 103481495A CN 201310424948 A CN201310424948 A CN 201310424948A CN 103481495 A CN103481495 A CN 103481495A
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- machine head
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- heaters
- temperature
- heating
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 32
- 238000002844 melting Methods 0.000 claims description 17
- 230000008018 melting Effects 0.000 claims description 17
- 239000004033 plastic Substances 0.000 claims description 14
- 229920003023 plastic Polymers 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 2
- 239000012768 molten material Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract 2
- 238000003780 insertion Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 230000005574 cross-species transmission Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
Images
Classifications
-
- 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
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
-
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/865—Heating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92209—Temperature
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92361—Extrusion unit
- B29C2948/9238—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/924—Barrel or housing
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92361—Extrusion unit
- B29C2948/92409—Die; Nozzle zone
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3462—Cables
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a heating device and a plastifying device used for improving the cable inner end plastifying quality. The heating device comprises an annular structure formed by at least two circular arc heaters. The heaters are connected through hinges. At least one buckling component used for connection is arranged at the connecting positions between the heaters to form an opening-closing structure to be used for being arranged on a mold of the plastifying device in a sleeved mode. Each heater is provided with an electric insertion groove used for heating. The electric insertion grooves of the heaters are jointly connected to temperature feedback devices at the corresponding positions of the plastifying device. According to the heating device and the plastifying device, the two semi-circular-arc heaters are adopted, assembly and disassembly are conveniently achieved, and therefore the mold can be conveniently assembled, disassembled and adjusted; meanwhile, a temperature control system is connected with the temperature feedback device at the feeding section or the flange position, heating control and cooling control are accurately achieved, and the product quality is guaranteed.
Description
Technical Field
The invention relates to the technical field of cable processing, in particular to a heating device and plasticizing equipment for improving the plasticizing quality of the inner end of a cable.
Background
At present, when a cable is subjected to extrusion molding processing, because production requirements are different, molds with different specifications are required to be used, in order to facilitate replacement, the mold used in the existing equipment is exposed in the air, so that the temperature of the mold is reduced, the temperature of the mold is lower, and the surface plasticization of the inner end of the cable is not good; moreover, when the mold is replaced every time, the heater needs to be detached and then installed again, sometimes after the extrusion molding material is discharged, the mold and the sheath are bonded together, the sheath is difficult to detach by the heater, the mold and the heater are easy to damage, meanwhile, the adjustment of concentricity is influenced, the heater can be installed only after the concentricity is adjusted, and the production efficiency is influenced.
Disclosure of Invention
The invention aims to provide a heating device and plasticizing equipment for improving the plasticizing quality of the inner end of a cable, so as to solve the problems that the temperature of a die is low and the temperature cannot be controlled in the prior art.
The invention discloses a heating device for improving the plasticizing quality of the inner end of a cable, which comprises: an annular structure formed by at least two circular arc-shaped heaters;
the heaters are connected through hinges, at least one buckling part is arranged at the connecting position of the heaters to form an opening and closing structure, and the opening and closing structure is used for being sleeved on a mould of plasticizing equipment;
each heater is provided with an electric socket for heating, and the electric sockets of the heaters are connected with a temperature feedback device at the corresponding part of the extruder together through a temperature control system.
Preferably, the snap member comprises:
and a magnet is arranged between any two heaters to form buckling connection.
Preferably, the method further comprises the following steps:
and each heater is also provided with a mould heat insulation plate used as a handle for facilitating the assembly and disassembly of the heating device on the mould.
The invention also discloses plasticizing equipment for improving the plasticizing quality of the inner end of the cable, which comprises: an extruder for plasticizing an inner end of a cable, the extruder comprising: the device comprises a machine barrel with a built-in screw, a machine head and a mould, wherein the mould is arranged in the machine head and is used for plasticizing a cable core in a cable, and one part of the mould extends out of the machine head;
the machine barrel is connected with the machine head through a flange, a cylindrical cutting sleeve is sleeved outside the surface of the die, and the heating device is sleeved on the outer wall of the cutting sleeve of the die outside the machine head.
Preferably, the method further comprises the following steps: the side wall of the clamping sleeve is provided with a buckle, the buckle is fixedly connected with the inner wall of the machine head, and the die is fixed with the machine head.
Preferably, the screw is sequentially divided into a feeding section, a melting section and a homogenizing section towards the machine head direction;
the feeding section is used for pushing solid plastics;
the melting section is used for melting the solid plastic;
the homogenizing section is used for keeping the temperature of the plastic after the molten material is constant, and the flow rate of the plastic entering the machine head is constant;
further comprising:
the charging section, the melting section, the homogenizing section, the flange and the machine head are respectively provided with a thermocouple as a temperature feedback device;
the electric sockets of the heaters are commonly connected with the thermocouples at the feeding section or the flange part and used for feeding back the temperature reached by the die outside the machine head.
Preferably, the method further comprises the following steps: the control cabinet is provided with power supply interfaces for respectively providing power for heating the feeding section, the melting section, the homogenizing section, the flange, the machine head and the die;
further comprising:
the heating device is provided with a heating power supply by the control cabinet and is connected with a power supply interface of a feeding section or a flange part of the control cabinet.
Preferably, the method further comprises the following steps: the control cabinet is also provided with a plurality of thermometers which are respectively connected with thermocouples of the feeding section, the melting section, the homogenizing section, the flange part and the machine head part and used for displaying the temperature value of each part.
Preferably, an automatic temperature control system is arranged in the control cabinet and used for automatically adjusting the temperature of each part to a preset temperature after the temperature deviation.
The heating device and the plasticizing equipment for improving the plasticizing quality of the inner end of the cable have the following advantages:
1. the heating device is convenient to assemble and disassemble;
2. the temperature control is connected by using a flange or a temperature feedback device of the feeding section, the temperature control of the system is adopted, an external temperature control device is not needed, the heating and cooling are accurately controlled, and the quality of a product is ensured;
3. adopt the buckle to fasten aircraft nose and mould, avoided the extrusion molding material to spill over, with heating device and mould bonding together the difficult problem of loading and unloading.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 shows a schematic structural view of a heating device;
FIG. 2 shows a schematic structural view of a plasticizing apparatus;
fig. 3 shows a schematic partial view of the head region of the plasticizing device.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, the present invention provides a heating apparatus for improving the plasticizing quality of an inner end of a cable, comprising:
a first circular arc heater 1 and a second circular arc heater 1' with one ends connected by a hinge 4 form an annular structure;
the other ends of the first arc-shaped heater 1 and the second arc-shaped heater 1' are provided with buckle parts for connection to form an opening and closing structure for being sleeved on a mould 10 of plasticizing equipment;
further, the snap member includes:
the magnets are respectively arranged at the other ends of the first arc-shaped heater 1 and the second arc-shaped heater 1' to form buckling connection;
the first arc heater 1 and the second arc heater 1 'are respectively provided with a first electric slot 2 and a second electric slot 2', and the electric slots of the heaters are commonly connected with thermocouples serving as temperature feedback devices at corresponding parts in plasticizing equipment;
further, a first mold heat-insulating plate 3 and a second mold heat-insulating plate 3 'which are used as handles are respectively installed on the first circular arc heater 1 and the second circular arc heater 1' for facilitating the mounting and dismounting of the heating device on the mold 10;
preferably, the first and second mold heat insulating plates 3 and 3 'are respectively provided at the other ends of the first and second circular arc heaters 1 and 1';
the snap means is provided between the first and second mold insulating panels 3 and 3'.
In the embodiment provided by the invention, the invention also discloses equipment for improving the plasticizing quality of the inner end of the cable, which comprises: the plastic extruding machine is used for improving the plasticizing quality of the inner end of the cable inner sheath;
the extruder comprises: a case 12 with a screw 13 arranged inside, a machine head 9 and a mould 10 for plasticizing the cable core;
wherein, the chassis 12 is connected with the machine head 9 through the flange 8, the mould 10 is installed in the machine head 9, a part of the mould 10 is led out from the machine head;
a cylindrical cutting sleeve 14 is sleeved on the outer wall of the mold 10;
the heating device is sleeved on the outer wall of a clamping sleeve 14 of the die 10 outside the machine head 9;
further, a cylindrical buckle 11 is arranged on the outer wall of the clamping sleeve 14 and connected with the inner wall of the machine head 9, and is used for fixing the die 10 and the machine head 9;
a screw 13 in a case 12 is sequentially divided into a feeding section 5, a melting section 6 and a homogenizing section 7 towards a machine head 9;
wherein,
the feeding section 5 is used for pushing the fixed plastic, and the fixed plastic is ensured to start to melt at the tail end of the feeding section before entering the melting section 6;
the melting material section 6 is used for fully melting the fixed plastic;
the homogenizing section 7 is used to maintain the temperature of the plastic extruded from the melt section 6 constant and to ensure a constant flow rate of plastic into the head.
Furthermore, thermocouples serving as temperature feedback devices are arranged on the feeding section 5, the melting section 6, the homogenizing section 7, the flange part 8 and the machine head part 9;
also comprises the following steps of (1) preparing,
a control cabinet for providing a heating power supply for each section and part;
the control cabinet is provided with a power supply interface connected with each section and part;
the heating device is connected with a power supply interface at the charging section or the flange part of the control cabinet.
The control cabinet is also provided with a plurality of thermometers for displaying the temperature of each section and part, and the thermometers are respectively connected with the thermocouples of each section and part;
the electric sockets of the first circular arc-shaped heater 1 and the second circular arc-shaped heater 1' are connected with a thermocouple of the feeding section 5 or the flange part 8 through a temperature control system on a control cabinet, and the thermocouple is used for feeding back the temperature reached by a mould 10 outside the machine head 9.
An automatic temperature control system is arranged in the control cabinet and used for automatically adjusting the temperature of each section and each part to a preset temperature after the temperature deviation.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A heating device for improving the plasticizing quality of an inner end of a cable, comprising: an annular structure formed by at least two circular arc-shaped heaters;
the heaters are connected through hinges, at least one buckling part is arranged at the connecting position of the heaters to form an opening and closing structure, and the opening and closing structure is used for being sleeved on a mould of plasticizing equipment;
each heater is provided with an electric socket for heating, and the electric sockets of the heaters are connected with a temperature feedback device at the corresponding part of the extruder together through a temperature control system.
2. The device of claim 1, wherein the snap member comprises:
and a magnet is arranged between any two heaters to form buckling connection.
3. The apparatus of claim 1, further comprising:
and each heater is also provided with a mould heat insulation plate used as a handle for facilitating the assembly and disassembly of the heating device on the mould.
4. A plasticizing apparatus for improving plasticizing quality of an inner end of a cable, comprising: an extruder for plasticizing an inner end of a cable, the extruder comprising: the device comprises a machine barrel with a built-in screw, a machine head and a mould, wherein the mould is arranged in the machine head and is used for plasticizing a cable core in a cable, and one part of the mould extends out of the machine head;
the machine barrel is connected with the machine head through a flange, and a cylindrical clamping sleeve is sleeved on the surface of the die, and the device of claim 1 is sleeved on the outer wall of the clamping sleeve of the die outside the machine head.
5. The apparatus of claim 4, further comprising: the side wall of the clamping sleeve is provided with a buckle, the buckle is fixedly connected with the inner wall of the machine head, and the die is fixed with the machine head.
6. The apparatus of claim 4, wherein the screw is divided into a feeding section, a melting section and a homogenizing section in sequence towards the machine head;
the feeding section is used for pushing solid plastics;
the melting section is used for melting the solid plastic;
the homogenizing section is used for keeping the temperature of the plastic after the molten material is constant, and the flow rate of the plastic entering the machine head is constant;
further comprising:
the charging section, the melting section, the homogenizing section, the flange and the machine head are respectively provided with a thermocouple as a temperature feedback device;
the electric sockets of the heaters are commonly connected with the thermocouples at the feeding section or the flange part and used for feeding back the temperature reached by the die outside the machine head.
7. The apparatus of claim 6, further comprising: the control cabinet is provided with power supply interfaces for respectively providing power for heating the feeding section, the melting section, the homogenizing section, the flange, the machine head and the die;
further comprising:
the heating device is provided with a heating power supply by the control cabinet and is connected with a power supply interface of a feeding section or a flange part of the control cabinet.
8. The apparatus of claim 7, further comprising: the control cabinet is also provided with a plurality of thermometers which are respectively connected with thermocouples of the feeding section, the melting section, the homogenizing section, the flange part and the machine head part and used for displaying the temperature value of each part.
9. The device as claimed in claim 8, wherein an automatic temperature control system is provided in the control cabinet for automatically adjusting the temperature of each part to a preset temperature after the temperature deviation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310424948.5A CN103481495B (en) | 2013-09-17 | 2013-09-17 | A kind of heater for improving the inner plasticizing quality of cable and plasticizing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310424948.5A CN103481495B (en) | 2013-09-17 | 2013-09-17 | A kind of heater for improving the inner plasticizing quality of cable and plasticizing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103481495A true CN103481495A (en) | 2014-01-01 |
| CN103481495B CN103481495B (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310424948.5A Active CN103481495B (en) | 2013-09-17 | 2013-09-17 | A kind of heater for improving the inner plasticizing quality of cable and plasticizing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103481495B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105873245A (en) * | 2016-06-14 | 2016-08-17 | 无锡新辉龙科技有限公司 | Clamp buckle type heater for semiconductor vacuum pipeline heating |
| CN107839190A (en) * | 2017-11-22 | 2018-03-27 | 四川亚大塑料制品有限公司 | Cross-head and mould preheating system |
| CN111251491A (en) * | 2018-12-03 | 2020-06-09 | 宁波优禾新材料科技有限公司 | A equipment for masterbatch production |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202986062U (en) * | 2012-11-26 | 2013-06-12 | 深圳市沃尔核材股份有限公司 | Heating ring and extrusion head comprising same |
| CN203622915U (en) * | 2013-09-17 | 2014-06-04 | 北京亨通斯博通讯科技有限公司 | Heating device and plastifying device used for improving cable inner end plastifying quality |
-
2013
- 2013-09-17 CN CN201310424948.5A patent/CN103481495B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202986062U (en) * | 2012-11-26 | 2013-06-12 | 深圳市沃尔核材股份有限公司 | Heating ring and extrusion head comprising same |
| CN203622915U (en) * | 2013-09-17 | 2014-06-04 | 北京亨通斯博通讯科技有限公司 | Heating device and plastifying device used for improving cable inner end plastifying quality |
Non-Patent Citations (1)
| Title |
|---|
| 温变英等: "《高分子材料与加工》", 31 March 2011, 中国轻工业出版社, article "高分子材料成型加工技术", pages: 72-76 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105873245A (en) * | 2016-06-14 | 2016-08-17 | 无锡新辉龙科技有限公司 | Clamp buckle type heater for semiconductor vacuum pipeline heating |
| CN107839190A (en) * | 2017-11-22 | 2018-03-27 | 四川亚大塑料制品有限公司 | Cross-head and mould preheating system |
| CN111251491A (en) * | 2018-12-03 | 2020-06-09 | 宁波优禾新材料科技有限公司 | A equipment for masterbatch production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103481495B (en) | 2016-02-10 |
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