CN114227162B - Hot melting connection process for 25 type passenger car box body and pipeline heat tracing band - Google Patents
Hot melting connection process for 25 type passenger car box body and pipeline heat tracing band Download PDFInfo
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- CN114227162B CN114227162B CN202111543156.0A CN202111543156A CN114227162B CN 114227162 B CN114227162 B CN 114227162B CN 202111543156 A CN202111543156 A CN 202111543156A CN 114227162 B CN114227162 B CN 114227162B
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- heat tracing
- tracing band
- cutting
- tail end
- layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/048—Crimping apparatus or processes
-
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Abstract
The invention relates to a hot melting connection process of a 25-type passenger car box body and a pipeline heat tracing band, which mainly comprises (1) tail end treatment; (2) terminal processing; (3) conducting wire compression joint; (4) glue filling; (5) curing; (6) heat-shrinkable sealing; and (7) testing the insulating property. The connecting structure facilitates heat tracing wiring of pipelines, and greatly reduces the manufacturing cost of heat tracing lines and the labor hour consumption on the premise of meeting the requirements of product safety level, IP protection level, insulation requirement and service life.
Description
Technical Field
The invention relates to the technical field of heat tracing hot melting connection processes, in particular to a hot melting connection process for 25 type passenger car boxes and pipeline heat tracing bands.
Background
The 25-type passenger car boxes on the train are connected through pipelines, auxiliary components such as valve bodies are installed on the pipelines, the train can travel for a long distance, particularly in cold seasons, condensed water on the train, such as the boxes, the pipelines and the valve bodies, can be frozen, thermal insulation materials can be wrapped on the components generally, the operation is convenient, the cost is low, the protection effect can be achieved in southern areas, but when the train runs to northern areas, the protection effect cannot be achieved, the phenomena of frost cracking and frost damage can occur frequently, and the components cannot work normally.
Disclosure of Invention
The applicant provides a hot melting connection process for a 25-type passenger car box body and a pipeline heat tracing band aiming at the defects in the prior art, so that the hot melting connection process can be conveniently applied to various application occasions, train parts are protected, the phenomenon of freezing damage is avoided, and the normal work of a train is ensured.
The technical scheme adopted by the invention is as follows:
a hot melting connection process for 25 type passenger car box bodies and pipeline heat tracing bands comprises the following operation steps:
the first step is as follows: tail end treatment:
cutting the tail end of the heat tracing band by using an inclined jaw pliers, wherein an angle of 45 degrees is required between a cutting surface and the length direction of the heat tracing band;
vertically cutting along the heat tracing band by using a position 15-20 mm away from an oblique end with an angle of 45 degrees of a cutter knife to form a vertical cutting surface;
cutting along the heat tracing band by using an art designer knife in the radial direction to form a radial cutting line, wherein the force is required to be uniform and appropriate until the outer sheath and the metal shielding layer are cut off, and the inner insulating layer and the core band heating layer cannot be damaged;
manually removing the cut outer layer sheath and the metal shielding protective layer, and repairing the incomplete cut part of the metal shielding layer by using diagonal pliers, wherein the cut surface of the metal shielding layer is required to be flat and uniform without sharp metal wires protruding;
cutting the top end part of the sharp corner vertically along the heat tracing band by using bevel pliers, wherein the cutting length is 5mm, and the core wire cutting surface is required to be flat and uniform without sharp metal wire protrusion;
the second step is that: terminal treatment:
cutting vertically along the heat tracing band by using a cutter at a position 40mm away from the top end of the heat tracing band, wherein the cutting line is required to be in a complete perimeter direction, and the cutting starting point and the tail end are overlapped to form a top end cutting surface;
using diagonal pliers and an art designing knife to process the metal shielding protective layer, reserving half of the metal wires, and then manually twisting the metal wires into a required shape, wherein the reserved length is 10-15 mm, and the removed metal wire part is smooth and uniform without sharp protrusion;
cutting the inner insulating layer by using an art designing knife, wherein the force is uniform and appropriate until the insulating layer is cut off, and the heating layer cannot be damaged;
the length of the inner layer insulating layer is kept to be 30mm;
cutting a groove, and cutting off the middle part of the heating layer by using diagonal pliers without damaging the wires on the two sides;
cutting off the heating layers of the wires on the two sides by using diagonal pliers, wherein the wires on the two sides cannot be damaged, and the length of the wire stripping is 5mm;
the third step: and (3) conducting wire crimping:
the YAC-8 type crimping pliers are used for crimping the heat tracing band terminal with the metal shielding layer and the power supply lead part of the heat tracing band to be respectively used as a grounding wire and a power supply wire, and the crimping is required to meet the relevant operation requirements of a lead cold-pressing and splicing specification document;
the terminal of the heat tracing band is crimped with the lead by using a crimping pliers, and the type and the length of the lead are determined according to the design requirement;
protecting the crimping position of the heat tracing band by using a tail end material label of the heat tracing band, and then performing thermal shrinkage treatment by using a hot air gun;
sleeving the heat tracing band into a 12 x 90 material label at the tail end of the heat tracing band, gluing the inside of the transparent tube, and performing thermal shrinkage treatment by using a hot air gun;
the sleeve is required to be sleeved with a length of 110 mm-120 mm, and a hot air gun is used for carrying out uniform thermal shrinkage until the sleeve and the heat tracing band are fastened and attached;
the fourth step: glue pouring:
pouring glue at the tail end of the heat tracing band from the opening end of the heat-shrinkable sleeve, wherein the glue pouring amount required for the wiring end is required to submerge the crimping terminal part;
the tail end requires glue pouring amount to immerse the top end part;
when the glue is filled in the tail end tank, the glue is firstly injected into the tail end of the heat tracing band to fill 1/3 of the cavity, then the tail end of the heat tracing band is inserted into the cavity, and the glue is gently extruded by hands after the glue is inserted to the bottom to be uniform;
the fifth step: and (3) curing:
vertically upwards opening ends of two glue pouring parts of the glue-poured heat tracing band, and placing the heat tracing band at a fixed frame position, wherein the curing time is required to be more than or equal to 8 hours;
and a sixth step: thermal shrinkage sealing:
uniformly heat-shrinking the tail end of the opening of the tail end material label of the 15 x 70-specification heat tracing band by using a hot air gun until the sleeve and the heat tracing band body are fastened and attached;
the seventh step: and (3) testing the insulating property:
measuring the insulation resistance value between two power lines and a ground wire by using a megger 1000V measuring tracing band, wherein the insulation resistance value is required to be more than or equal to 200 MOmega;
and a withstand voltage test instrument is used for measuring the leakage current value between the two power lines and the ground wire, the withstand voltage level is AC1500V, the duration is 1 minute, the leakage current is required to be less than or equal to 10mA, and breakdown or flashover is avoided.
As a further improvement of the above technical solution:
in the first step, the shearing surface is required to be smooth and flat, the tangent plane is uniform and linear, and the metal wire without core wire is protruded.
In the first step, when cutting vertically, the cutting line is required to be in a complete perimeter direction, and the cutting starting point and the cutting tail end are coincided; the force is uniform and moderate until the outer sheath and the metal shielding layer are cut off, and the inner insulating layer and the core belt heating layer cannot be damaged.
In the second step, the force is uniform and moderate during cutting until the outer layer protective sleeve is cut off, the metal shielding protective layer cannot be damaged, and then the outer layer insulating protective sleeve is removed.
In the second step, the depth of the groove was 10mm.
And in the third step, the first piece of crimping identification is needed before the crimping operation.
And in the third step, the exposed metal wires of the shielding layer are required to be more than or equal to 15mm away from the heating layer.
In the third step, the ground wire must use a standard yellow-blue ground wire.
In the third step, the length of the top end of the sleeve is reserved to be 30-40 mm.
The invention has the following beneficial effects:
the invention has compact and reasonable structure and convenient operation, and is processed by the tail end of the device (1); (2) terminal processing; (3) conducting wire compression joint; (4) glue filling; (5) curing; (6) heat-shrinkable sealing; and (7) testing the insulating property. The connecting structure facilitates heat tracing wiring of pipelines, and greatly reduces the manufacturing cost of heat tracing lines and the labor hour consumption on the premise of meeting the requirements of product safety level, IP protection level, insulation requirement and service life.
Drawings
FIG. 1 is a schematic view of the structure of the heat tracing band in the tail end treatment of the present invention.
FIG. 2 is a front view of the heat trace band in the tail end treatment of the present invention.
FIG. 3 is a diagram showing the state after the tail end of the present invention is cut.
FIG. 4 is a schematic view of the tip cut according to the present invention.
FIG. 5 is a state diagram of the present invention cutting the outer insulating sheath.
FIG. 6 is a schematic diagram of the internal processing of the present invention.
Fig. 7 is a schematic structural diagram of the present invention applied to the bent pipe.
Fig. 8 is a schematic structural diagram of the invention applied to a straight pipe.
FIG. 9 is a schematic view of the present invention applied to a T-shaped pipe.
Fig. 10 is a schematic structural diagram of the valve body paved by the application of the invention.
Wherein: 1. a heat tracing band; 2. bending the pipe; 3. a straight pipe; 4. a T-shaped pipe; 5. a valve body;
101. shearing surfaces; 102. cutting surfaces vertically; 103. a radial cutting line; 104. cutting the top end; 105. an outer insulating layer; 106. and (6) a groove.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 6, the hot melting connection process for the 25-type passenger car body and the pipeline heat tracing band of the embodiment includes the following operation steps:
the first step is as follows: tail end treatment:
cutting the tail end of the heat tracing band 1 by using diagonal pliers, wherein an angle of 45 degrees is required between a cutting surface 101 and the length direction of the heat tracing band 1;
vertically cutting along the heat tracing band 1 at a position 15 mm-20 mm away from an oblique end with an angle of 45 degrees by using a cutter knife to form a vertical cutting surface 102;
cutting along the heat tracing band 1 by an art designer to form a radial cutting line 103, wherein the force is required to be uniform and appropriate until the outer sheath and the metal shielding layer are cut off, and the inner insulating layer and the core band heating layer cannot be damaged;
manually removing the cut outer layer sheath and the metal shielding protective layer, and repairing the part of the metal shielding layer which is not completely cut by using diagonal pliers, wherein the cut surface of the metal shielding layer is required to be flat and uniform without protruding sharp metal wires;
cutting the top end part of the sharp corner vertically along the heat tracing band 1 by using bevel pliers, wherein the cutting length is 5mm, and the cutting surface of the core wire is required to be flat and uniform without protruding sharp metal wires;
the second step: terminal treatment:
vertically cutting along the heat tracing band 1 at a position 40mm away from the top end of the heat tracing band 1 by using a cutter, wherein a cutting line is required to be in a complete perimeter direction, and a cutting starting point and a cutting tail end are overlapped to form a top end cutting surface 104;
using diagonal pliers and an art designing knife to process the metal shielding protective layer, reserving half of the metal wires, then manually twisting the metal wires into a required shape, wherein the reserved length is 10-15 mm, and the removed metal wire part is smooth and uniform without sharp protrusion;
cutting the inner insulating layer by using an art designing knife, wherein the force is uniform and moderate until the insulating layer is cut off, and the heating layer cannot be damaged;
the length of the inner layer insulating layer is kept to be 30mm;
cutting the groove 106, and cutting off the middle part of the heating layer by using diagonal pliers without damaging the wires on the two sides;
cutting off the heating layers of the wires on the two sides by using diagonal pliers, wherein the wires on the two sides cannot be damaged, and the length of the wire stripping is 5mm;
the third step: and (3) conducting wire crimping:
the YAC-8 type crimping pliers are used for crimping the terminal of the heat tracing band 1 to a metal shielding layer and a power supply lead part of the heat tracing band 1 to be respectively used as a grounding wire and a power supply wire, and the crimping is in accordance with the relevant operation requirements of a lead cold crimping specification file;
the terminal of the heat tracing band 1 is pressed with the lead by using a crimping pliers, and the type and the length of the lead are determined according to the design requirement;
protecting the crimping part of the heat tracing band 1 by using a material label at the tail end of the heat tracing band 1, and then performing thermal shrinkage treatment by using a hot air gun;
sleeving the heat tracing band 1 into a 12 x 90 heat tracing band tail end material label, then gluing the inside of the transparent pipe, and performing thermal shrinkage treatment by using a hot air gun; (the heat tracing band is sleeved in the heat-shrinkable sleeves with the models of 12 multiplied by 90 and phi 16 at the tail end of the heat tracing band before butt joint.
Sleeving a heat tracing band 1 into a phi 16 type heat-shrinkable sleeve with the length of 150mm, wherein the length of the sleeve is required to be 110-120 mm, and uniformly performing heat shrinkage by using a hot air gun until the sleeve and the heat tracing band 1 are fastened and attached;
the fourth step: glue pouring:
pouring glue at the tail end of the heat tracing band from the opening end of the heat-shrinkable sleeve, wherein the glue pouring amount required for the wiring end is required to submerge the crimping terminal part;
the tail end requires glue pouring amount to immerse the top end part;
when the tail end can is glued, firstly, the glue is injected into the tail end of the heat tracing band 1, 1/3 of the cavity is filled, then the tail end of the heat tracing band 1 is inserted, and the glue is lightly squeezed by hands after being inserted to the bottom to be uniform;
the fifth step: and (3) curing:
vertically upwards opening ends of two glue pouring parts of the glue pouring heat tracing band 1, and placing the glue pouring heat tracing band at a fixed frame position, wherein the curing time is required to be more than or equal to 8 hours;
and a sixth step: thermal shrinkage sealing:
uniformly thermally shrinking the tail end of the opening of the tag at the tail end of the 15 x 70-sized heat tracing band 1 by using a hot air gun until the sleeve and the heat tracing band body are tightly attached;
the seventh step: and (3) testing the insulating property:
measuring the insulation resistance value between two power lines and a ground wire by using a megger 1000V measuring tracing band 1, wherein the insulation resistance value is required to be more than or equal to 200 MOmega;
and a withstand voltage test instrument is used for measuring the leakage current value between the two power lines and the ground wire, the withstand voltage level is AC1500V, the duration is 1 minute, the leakage current is required to be less than or equal to 10mA, and breakdown or flashover is avoided.
In the first step, the cutting plane 101 is required to be smooth and flat, the cutting plane is uniform and linear, and the metal wire without core wire is protruded.
In the first step, when cutting vertically, the cutting line is required to be in a complete perimeter direction, and the cutting starting point and the cutting tail end are coincided; the force is uniform and moderate until the outer sheath and the metal shielding layer are cut off, and the inner insulating layer and the core belt heating layer cannot be damaged.
In the second step, the force is uniform and moderate during cutting until the outer layer protective sleeve is cut off, the metal shielding protective layer cannot be damaged, and then the outer layer insulating protective sleeve is removed.
In the second step, the depth of the groove 106 is 10mm.
And in the third step, the first piece of crimping identification is needed before the crimping operation.
And in the third step, the exposed metal wires of the shielding layer are required to be more than or equal to 15mm away from the heating layer.
In the third step, the ground wire must use a standard yellow-blue ground wire.
In the third step, the length of the top end of the sleeve is reserved to be 30-40 mm.
The heat tracing line manufacturing process can conveniently meet the requirement that all parts need to be connected by the heat tracing device, and can meet the requirement that the train can work normally in cold regions.
As shown in figures 7-10, the heat tracing belt body prepared by the invention can be conveniently arranged on a bent pipe 2, a straight pipe 3, a T-shaped pipe 5 and a valve 6, only needs to be wound outside the parts, is fixed by using a high-temperature resistant binding belt, has a straight line fixed interval of 300mm, is not limited to a limited space part, is wrapped with a cold-proof material of 20-40mm around the heat tracing belt after the fixing is finished, and finally is pasted with a flame-retardant glass fiber adhesive tape on the surface of the cold-proof material, thereby protecting the cable sheath and preventing the cable sheath from being scratched.
The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.
Claims (9)
1. A hot melting connection process for 25 type passenger car box bodies and pipeline heat tracing bands is characterized in that: the method comprises the following operation steps:
the first step is as follows: tail end treatment:
cutting the tail end of the heat tracing band (1) by using an inclined jaw pliers, wherein the cutting surface (101) and the length direction of the heat tracing band (1) form an angle of 45 degrees;
cutting vertically along the heat tracing band (1) by using a cutter at a position 15-20 mm away from the bevel end with an angle of 45 degrees to form a vertical cutting surface (102);
cutting along the heat tracing band (1) by using an art designing knife in the radial direction to form a radial cutting line (103), wherein the force is required to be uniform and appropriate until the outer sheath and the metal shielding layer are cut off, and the inner insulating layer and the core band heating layer cannot be damaged;
manually removing the cut outer layer sheath and the metal shielding protective layer, and repairing the incomplete cut part of the metal shielding layer by using diagonal pliers, wherein the cut surface of the metal shielding layer is required to be flat and uniform without sharp metal wires protruding;
cutting the top end part of the sharp corner vertically along the heat tracing band (1) by using bevel pliers, wherein the cutting length is 5mm, and the core wire cutting surface is required to be flat and uniform without protruding sharp metal wires;
the second step is that: terminal treatment:
cutting vertically along the heat tracing band (1) at a position 40mm away from the top end of the heat tracing band (1) by using a cutter, wherein the cutting line is required to be in a complete perimeter direction, and the cutting starting point and the cutting tail end are coincided to form a top end cutting surface (104);
using diagonal pliers and an art designing knife to process the metal shielding protective layer, reserving half of the metal wires, and then manually twisting the metal wires into a required shape, wherein the reserved length is 10-15 mm, and the removed metal wire part is smooth and uniform without sharp protrusion;
cutting the inner insulating layer by using an art designing knife, wherein the force is uniform and appropriate until the insulating layer is cut off, and the heating layer cannot be damaged;
the length of the inner layer insulating layer is kept to be 30mm;
cutting a groove (106), and cutting off the middle part of the heating layer by using diagonal pliers without damaging the wires on the two sides;
cutting off the heating layers of the wires on the two sides by using diagonal pliers, wherein the wires on the two sides cannot be damaged, and the length of the wire stripping is 5mm;
the third step: and (3) conducting wire crimping:
the YAC-8 type crimping pliers are used for crimping the terminal of the heat tracing band (1) to the metal shielding layer and the power supply lead part of the heat tracing band (1) to be respectively used as a grounding wire and a power supply wire, and the crimping is required to meet the relevant operation requirements of a lead cold-pressing and welding specification file;
the terminal of the heat tracing band (1) is pressed with the lead by using a crimping pliers, and the type and the length of the lead are determined according to the design requirement;
protecting the crimping position of the heat tracing band (1) by using a tail end material label of the heat tracing band (1), and then performing thermal shrinkage treatment by using a hot air gun;
sheathing the heat tracing band (1) into a tail material pick of the heat tracing band, wherein the diameter and the length of the tail material pick are 12mm multiplied by 90mm, gluing the inside of a transparent pipe, and performing thermal shrinkage treatment by using a hot air gun;
sleeving a heat tracing band (1) into a phi 16 type heat-shrinkable sleeve with the length of 150mm, wherein the sleeving length is required to be 110 mm-120 mm, and uniformly heat-shrinking by using a hot air gun until the sleeve and the heat tracing band (1) are fastened and attached;
the fourth step: and (3) glue pouring:
pouring glue at the tail end of the heat tracing band from the opening end of the heat-shrinkable sleeve, wherein the glue pouring amount required for the wiring end is required to submerge the crimping terminal part;
the tail end requires glue pouring amount to immerse the top end part;
when the glue is filled in the tail end tank, the glue is firstly injected into the tail end of the heat tracing band (1) to fill 1/3 of the cavity, then the tail end of the heat tracing band (1) is inserted into the cavity, and the glue is gently extruded by hands after the glue is inserted to the bottom to be uniform;
the fifth step: and (3) curing:
vertically upwards opening ends of two glue filling parts of the glue filled heat tracing band (1), and placing the heat tracing band at a fixed frame position, wherein the curing time is required to be more than or equal to 8 hours;
and a sixth step: thermal shrinkage sealing:
uniformly thermally shrinking the tail end of the opening of the tail end material label of the 15 x 70 specification heat tracing band (1) by using a hot air gun until the sleeve and the heat tracing band body are tightly attached;
the seventh step: and (3) testing the insulating property:
measuring an insulation resistance value between two power lines and a ground wire by using a megger 1000V measuring tracing band (1), wherein the insulation resistance value is required to be more than or equal to 200M omega;
and a withstand voltage test instrument is used for measuring the leakage current value between two power lines and a ground wire, the withstand voltage level is AC1500V, the duration is 1 minute, the leakage current is required to be less than or equal to 10mA, and breakdown or flashover is avoided.
2. The hot-melting connection process for the 25-type passenger car box body and the pipeline heat tracing band according to claim 1, characterized in that: in the first step, the cutting surface (101) is required to be smooth and flat, the cutting surface is uniform and linear, and the metal wire without core wire protrudes.
3. The hot-melting connection process for the 25-type passenger car box body and the pipeline heat tracing band as claimed in claim 1, characterized in that: in the first step, when cutting vertically, the cutting line is required to be in a complete perimeter direction, and the cutting starting point and the cutting tail end are coincided; the force is uniform and moderate until the outer sheath and the metal shielding layer are cut off, and the inner insulating layer and the core belt heating layer cannot be damaged.
4. The hot-melting connection process for the 25-type passenger car box body and the pipeline heat tracing band according to claim 1, characterized in that: in the second step, the force is uniform and moderate during cutting until the outer layer protective sleeve is cut off, the metal shielding protective layer cannot be damaged, and then the outer layer insulating protective sleeve is removed.
5. The hot-melting connection process for the 25-type passenger car box body and the pipeline heat tracing band according to claim 1, characterized in that: in the second step, the depth of the groove (106) is 10mm.
6. The hot-melting connection process for the 25-type passenger car box body and the pipeline heat tracing band as claimed in claim 1, characterized in that: and in the third step, the first piece of crimping identification is needed before crimping operation.
7. The hot-melting connection process for the 25-type passenger car box body and the pipeline heat tracing band according to claim 1, characterized in that: and in the third step, the exposed metal wires of the shielding layer are required to be more than or equal to 15mm away from the heating layer.
8. The hot-melting connection process for the 25-type passenger car box body and the pipeline heat tracing band as claimed in claim 1, characterized in that: in the third step, the ground wire must use a standard yellow-blue ground wire.
9. The hot-melting connection process for the 25-type passenger car box body and the pipeline heat tracing band as claimed in claim 1, characterized in that: in the third step, the length of the top end of the sleeve is reserved to be 30-40 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111543156.0A CN114227162B (en) | 2021-12-16 | 2021-12-16 | Hot melting connection process for 25 type passenger car box body and pipeline heat tracing band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111543156.0A CN114227162B (en) | 2021-12-16 | 2021-12-16 | Hot melting connection process for 25 type passenger car box body and pipeline heat tracing band |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114227162A CN114227162A (en) | 2022-03-25 |
| CN114227162B true CN114227162B (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111543156.0A Active CN114227162B (en) | 2021-12-16 | 2021-12-16 | Hot melting connection process for 25 type passenger car box body and pipeline heat tracing band |
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| CN (1) | CN114227162B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799649B (en) * | 2018-08-22 | 2023-08-22 | 河北泽邦塑胶科技有限公司 | Self-heating floating oil delivery hose and preparation method of constant-power heating belt thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0940900A1 (en) * | 1998-03-04 | 1999-09-08 | Alcatel | Cable sleeve with an insert enclosing a splice |
| CN102513774A (en) * | 2011-12-07 | 2012-06-27 | 青岛四方车辆研究所有限公司 | Overhauling line of water supply and drainage system |
| CN103887677A (en) * | 2014-04-03 | 2014-06-25 | 无锡中车创想科技有限公司 | Heat tracing wire heat type connecting technology |
| CN113437615A (en) * | 2021-06-29 | 2021-09-24 | 南京盛科伴热科技有限公司 | Wiring operation method for production and processing of heat tracing line |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2521447A (en) * | 2013-12-20 | 2015-06-24 | Technip France | A PIP trace heating connection assembly |
-
2021
- 2021-12-16 CN CN202111543156.0A patent/CN114227162B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0940900A1 (en) * | 1998-03-04 | 1999-09-08 | Alcatel | Cable sleeve with an insert enclosing a splice |
| CN102513774A (en) * | 2011-12-07 | 2012-06-27 | 青岛四方车辆研究所有限公司 | Overhauling line of water supply and drainage system |
| CN103887677A (en) * | 2014-04-03 | 2014-06-25 | 无锡中车创想科技有限公司 | Heat tracing wire heat type connecting technology |
| CN113437615A (en) * | 2021-06-29 | 2021-09-24 | 南京盛科伴热科技有限公司 | Wiring operation method for production and processing of heat tracing line |
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| Publication number | Publication date |
|---|---|
| CN114227162A (en) | 2022-03-25 |
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