CN101693404B - Preparation method of heat-resistant light air-conditioning duct - Google Patents
Preparation method of heat-resistant light air-conditioning duct Download PDFInfo
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- CN101693404B CN101693404B CN2009101975281A CN200910197528A CN101693404B CN 101693404 B CN101693404 B CN 101693404B CN 2009101975281 A CN2009101975281 A CN 2009101975281A CN 200910197528 A CN200910197528 A CN 200910197528A CN 101693404 B CN101693404 B CN 101693404B
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Abstract
The invention pertains to the technical field of the processing of rubber products, and particularly relates to a preparation method of a heat-resistant light air-conditioning duct, which comprises the following steps: properly cutting silicon rubber cloth, lap-jointing the silicon rubber cloth into a blank tube with organic silica gel, wrapping stainless steel wire with the silica gel, evenly winding the stainless steel wire on the blank tube, curing, demoulding and two-end banding, thus preparing the heat-resistant light air-conditioning duct. The prepared air-conditioning duct is characterized by heat resistance, folding resistance, being capable of expansion and contraction, being light in mass and the like, and is applied in the exhaust system of industrial air-conditioners and central air-conditioners, and is especially applicable to the air-conditioning exhaust system of a helicopter.
Description
Technical field
The invention belongs to the rubber product forming processing technique field, be specifically related to a kind of preparation method of heat-resistant light air-conditioning duct.
Background technology
The air-conditioning exhaust duct is used for the exhaust system of central air-conditioning and special industry air-conditioning, and modified polypropylene plastic air-conditioning pipe, traditional iron sheet air-conditioning pipe, aluminium foil combined air conditioner pipe, rubber air-conditioning pipe etc. are generally arranged.Select the air-conditioning pipe of unlike material for use according to different instructions for uses, plastics air-conditioning pipe light weight, softness can be stretched, but temperature resistant grade low (being generally 80 ℃); Metal air-conditioning pipe is high temperature resistant (can reach 400 ℃), and 200 ℃ of rubber air-conditioning pipe abilities are big but their defective is a quality.
Therefore, development is a kind of can air-conditioning pipe high temperature resistant, light weight very necessary.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of heat-resistant light air-conditioning duct.
The preparation method of the heat-resistant light air-conditioning duct that the present invention proposes, be sulfided into by glass fabric dipping silicon rubber or two-sided frictioning, through super-dry and be silica gel cloth, again through the overlap joint, bonding, with the coating silica gel stainless steel wire twine enhancing, through cure and demold and edge sealing and make, concrete steps are as follows:
(1) raw material are prepared
Calculate girth by tube outer diameter, add the width of 10mm-50mm as silica gel cloth, increase the length of 20mm-120mm as silica gel cloth according to pipe length, straight cutting put in the cleaning box standby; Steel wire is wrapped on the drum that diameter is Φ 30mm-Φ 300mm, drum is fixed on the frame; Inject in the storage tank silica gel standby; Prepare plug, mould, the gas expansion shaft of corresponding specification.
(2) overlap joint
(A) getting the good adhesive plaster of sanction, is 10mm-50mm according to the overlapping the slot width, and faying surface cleans with alcohol, air dry;
(B) check that mandrel surface should smooth no burr, adhesive plaster is coated on the plug, coat silica gel equably, cost joint and push, guarantee that as far as possible overlapping the slot is straight;
(C) the unnecessary silica gel that overflows with cleaning cloth or alcohol cleaning seam crossing obtains embryonic tube, and room temperature was placed after 20-90 minute, and plug is pulled out, and embryonic tube is lain in a horizontal plane on the cleaning table top, and air dry is solidified, and is standby.
(3) steel wire twines
(A) embryonic tube is enclosed within on the mould, mould is enclosed within on the inflatable axle, overall fixed is on wrapping machine; The gas expansion shaft inflation;
(B) the embryonic tube surface is cleaned with alcohol, and the steel wire leader is by storage glue jar gum outlet, and gum outlet height and hole are regulated according to actual needs, push away glue air pressure .0.1MPa～0.8MPa;
(C) start the wrapping machine main shaft, in the trial run of embryonic tube end, line footpath behind the control pierce tap glue; After the glue amount is normal, begin to twine;
(D) twine omnidistance the end, with steel wire the end of winding steel wire is pricked head, severing winding steel wire, integral body are taken off and unsettledly are placed on the falsework drying.
(4) demoulding
With the gas expansion shaft venting, take out gas expansion shaft then, take out mould, product is rested on the special stand, continue to solidify at least 8 hours.
(5) edge sealing
Through the product of visual examination and air-tightness passed examination, two ends are unsettled, evenly coat silica gel at the two ends circumference, and beginning the gluing width from end face is 20mm～120mm; Adhesive tape one end is close to the gluing body, and the other end circumferentially evenly coats, and overlapping 10mm～35mm flattens, and unnecessary sanction is gone; Be dried to not a half hour, cut out along end face and remove redundance, promptly get product.
Among the present invention, step (1) is the preparation of raw material, promptly select suitable silica gel cloth, steel wire and silica gel, silica gel cloth is that glass fabric dipping silicon rubber or two-sided frictioning are made, thickness 0.15mm-0.40mm, steel wire is the stainless steel wire of line footpath less than 1mm, and silica gel is cold curing single-component organic silicon glue.Wherein silica gel cloth requires air-tightness good, folding; Steel wire good rigidly, intensity height; The silica gel cementability is good, hardening time short.
Among the present invention, step (2) is to adopt silica gel to be overlapped to form embryonic tube silica gel cloth, and after the silica gel room temperature vulcanization, the joint strength of embryonic tube and air-tightness are just secure, and generally speaking, room temperature is high more, humidity is big more, long more sulfuration of time is complete more.
Among the present invention, step (3) is the steel wire gluing and is wrapped in process on the embryonic tube.Gum outlet height, hole, push away band glue amount that glue air pressure, the steel wire direction of motion and speed will determine steel wire, uniformity and with the adhesive strength of embryonic tube.
Among the present invention, step (4) is the demoulding and the solidification process of air-conditioning pipe.Because not complete cure state bottom knockout, demoulding action wants light, must not the grazing outer surface, and simultaneously, hardening time, the longer the better.
Among the present invention, step (5) is the edge sealing process of air-conditioning pipe.At air-conditioning pipe two ends silica gel cloth edge sealing, effect is to be convenient to install connect, and product appearance is more attractive in appearance.
The heat-resistant light air-conditioning duct that utilizes the inventive method to prepare is mainly used in high temperature, loss of weight operating mode.Its main performance index is: after the crooked and compression 100 times, 200 ℃ of constant temperature 24 hours, 3min under 100KPa pressure was air tight in the cooling back, and nothing is come unstuck; Every meter weight is calculated with internal diameter Φ 60mm air-conditioning pipe and is answered≤140 grams.
Gained heat-resistant light air-conditioning duct of the present invention is applied to the exhaust system of industrial air-conditioning and central air-conditioning, is specially adapted to helicopter air-conditioning exhaust system, can be high temperature resistant, and effectively weight reduction, and harmless.
Description of drawings
Fig. 1 is the structural diagrams of heat-resistant light air-conditioning duct of the present invention.Wherein: L is the air-conditioning length of tube, and D is the air-conditioning bore, and T is a pitch.
Number in the figure: 1 is silica gel, and 2 is steel wire, and 3 is body.
The specific embodiment
Further specify the present invention below by embodiment.
Embodiment 1: the preparation heat-resistant light air-conditioning duct, specification is: internal diameter Φ 60mm, length 2000mm.
The straight silica gel cloth that cuts, long * wide be 2060mm * 223mm, put in the cleaning box standby; Steel wire is wrapped on the drum that diameter is Φ 70mm, drum is fixed on the frame; Inject in the storage tank silica gel 200 grams standby; Be ready to Φ 60mm plug, Φ 58mm mould, Φ 54mm gas expansion shaft etc.
Getting and cut out good adhesive plaster, is 34.5mm according to the overlapping the slot width, and faying surface cleans with alcohol, air dry; Adhesive plaster is coated on the plug, coats silica gel equably, cost joint and push; Unnecessary silica gel with cleaning cloth cleaning seam crossing overflows obtains embryonic tube.Wait for 60 minutes, plug pulled out that embryonic tube is placed on the cleaning table top, and air dry is solidified after 2 hours standby.
Embryonic tube is enclosed within on the mould, mould is enclosed within on the inflatable axle, overall fixed is on wrapping machine; The gas expansion shaft inflation; The embryonic tube surface is cleaned with alcohol, and the steel wire leader is by storage glue jar gum outlet, and gum outlet height and embryonic tube lower edge tangent line are with high, and suitably adjustment apertures pushes away glue air pressure 0.15MPa; Start the wrapping machine main shaft, in the trial run of embryonic tube end, line directly is 2mm behind the control pierce tap glue; After the glue amount is normal, start feed change unit, begin to twine, control pitch is 15mm; Twine omnidistance the end, stop wrapping machine main shaft and feed change unit, the end of winding steel wire is pricked head, severing winding steel wire with steel wire.Integral body is taken off unsettled being placed on the falsework, dry 2 hours.
With the gas expansion shaft venting, take out gas expansion shaft then, take out mould, product is rested on the special stand, continue to solidify 12 hours.
After visual examination and air-tightness passed examination, two ends are unsettled, evenly coat silica gel at the two ends circumference, and beginning the gluing width from end face is 60mm; Adhesive tape one end is close to the gluing body, and the other end circumferentially evenly coats, and overlapping 10mm flattens, and unnecessary sanction is gone; Dry 1 hour, remove redundance along the end face sanction, promptly get product.
Through detecting, the heat-resistant light air-conditioning duct main performance index of preparation is:
After the crooked and compression 100 times, 200 ℃ of constant temperature 24 hours, 3min under 100KPa pressure was air tight in the cooling back, and nothing is come unstuck; Weight is 275 grams; It is qualified that every toxic and harmful detects.
Embodiment 2: the preparation heat-resistant light air-conditioning duct, specification is: internal diameter Φ 40mm, length 3000mm.
The straight silica gel cloth that cuts, long * wide be 3100mm * 146mm, put in the cleaning box standby; Steel wire is wrapped on the drum that diameter is Φ 50mm, drum is fixed on the frame; Inject in the storage tank silica gel 300 grams standby; Be ready to Φ 40mm plug, Φ 38mm mould, Φ 35mm gas expansion shaft etc.
Getting and cut out good adhesive plaster, is 20.5mm according to the overlapping the slot width, and faying surface cleans with alcohol, air dry; Adhesive plaster is coated on the plug, coats silica gel equably, cost joint and push; Unnecessary silica gel with cleaning cloth cleaning seam crossing overflows obtains embryonic tube.Wait for 50 minutes, plug pulled out that embryonic tube is placed on the cleaning table top, and air dry is solidified after 2.5 hours standby.
Embryonic tube is enclosed within on the mould, mould is enclosed within on the inflatable axle, overall fixed is on wrapping machine; The gas expansion shaft inflation; The embryonic tube surface is cleaned with alcohol, and the steel wire leader is by storage glue jar gum outlet, and gum outlet height and embryonic tube lower edge tangent line are with high, and suitably adjustment apertures pushes away glue air pressure 0.20MPa; Start the wrapping machine main shaft, in the trial run of embryonic tube end, line directly is 1.5mm behind the control pierce tap glue; After the glue amount is normal, start feed change unit, begin to twine, control pitch is 10mm; Twine omnidistance the end, stop wrapping machine main shaft and feed change unit, the end of winding steel wire is pricked head, severing winding steel wire with steel wire.Integral body is taken off unsettled being placed on the falsework, dry 3 hours.
With the gas expansion shaft venting, take out gas expansion shaft then, take out mould, product is rested on the special stand, continue to solidify 12 hours.
After visual examination and air-tightness passed examination, two ends are unsettled, evenly coat silica gel at the two ends circumference, and beginning the gluing width from end face is 80mm; Adhesive tape one end is close to the gluing body, and the other end circumferentially evenly coats, and overlapping 10mm flattens, and unnecessary sanction is gone; Dry 1 hour, remove redundance along the end face sanction, promptly get product.
Through detecting, the heat-resistant light air-conditioning duct main performance index of preparation is:
After the crooked and compression 100 times, 200 ℃ of constant temperature 24 hours, 3min under 100KPa pressure was air tight in the cooling back, and nothing is come unstuck; Weight is 270 grams; It is qualified that every toxic and harmful detects.
Embodiment 3: the preparation heat-resistant light air-conditioning duct, specification is: internal diameter Φ 100mm, length 1500mm.
The straight silica gel cloth that cuts, long * wide be 1560mm * 354mm, put in the cleaning box standby; Steel wire is wrapped on the drum that diameter is Φ 110mm, drum is fixed on the frame; Inject in the storage tank silica gel 400 grams standby; Be ready to Φ 100mm plug, Φ 98mm mould, Φ 95mm gas expansion shaft etc.
Get and cut out good adhesive plaster, according to overlapping the slot width 40mm, faying surface cleans with alcohol, air dry; Adhesive plaster is coated on the plug, coats silica gel equably, cost joint and push; Unnecessary silica gel with cleaning cloth cleaning seam crossing overflows obtains embryonic tube.Wait for 90 minutes, plug pulled out that embryonic tube is placed on the cleaning table top, and air dry is solidified after 4 hours standby.
Embryonic tube is enclosed within on the mould, mould is enclosed within on the inflatable axle, overall fixed is on wrapping machine; The gas expansion shaft inflation; The embryonic tube surface is cleaned with alcohol, and the steel wire leader is by storage glue jar gum outlet, and gum outlet height and embryonic tube lower edge tangent line are with high, and suitably adjustment apertures pushes away glue air pressure 0.45MPa; Start the wrapping machine main shaft, in the trial run of embryonic tube end, line directly is 2.5mm behind the control pierce tap glue; After the glue amount is normal, start feed change unit, begin to twine, control pitch is 20mm; Twine omnidistance the end, stop wrapping machine main shaft and feed change unit, the end of winding steel wire is pricked head, severing winding steel wire with steel wire.Integral body is taken off unsettled being placed on the falsework, dry 3 hours.
With the gas expansion shaft venting, take out gas expansion shaft then, take out mould, product is rested on the special stand, continue to solidify 12 hours.
After visual examination and air-tightness passed examination, two ends are unsettled, evenly coat silica gel at the two ends circumference, and beginning the gluing width from end face is 60mm; Adhesive tape one end is close to the gluing body, and the other end circumferentially evenly coats, and overlapping 10mm flattens, and unnecessary sanction is gone; Dry 1 hour, remove redundance along the end face sanction, promptly get product.
Through detecting, the heat-resistant light air-conditioning duct main performance index of preparation is:
After the crooked and compression 100 times, 200 ℃ of constant temperature 24 hours, 3min under 100KPa pressure was air tight in the cooling back, and nothing is come unstuck; Weight is 342 grams; It is qualified that every toxic and harmful detects.
Claims (1)
1. the preparation method of a heat-resistant light air-conditioning duct is characterized in that concrete steps are as follows:
(1) raw material are prepared
Calculate girth by tube outer diameter, add the width of 10mm～50mm, increase the length of 20mm～120mm as silica gel cloth according to pipe length as silica gel cloth, straight cutting, standby; Steel wire is wrapped on the drum that diameter is Φ 30mm～Φ 300mm, drum is fixed on the frame; Inject in the storage tank silica gel standby; Prepare plug, mould, the gas expansion shaft of corresponding specification; Wherein: silica gel cloth is formed through the super-dry sulfuration by glass fabric dipping silicon rubber or two-sided frictioning;
(2) overlap joint
(A) getting the good adhesive plaster of sanction, is 10mm～50mm according to the overlapping the slot width, and faying surface cleans with alcohol, air dry;
(B) check that mandrel surface should smooth no burr, adhesive plaster is coated on the plug, coat silica gel equably, cost joint and push, guarantee that as far as possible overlapping the slot is straight;
(C) the unnecessary silica gel that overflows with cleaning cloth or alcohol cleaning seam crossing obtains embryonic tube; Wait for 20～90 minutes, plug pulled out that embryonic tube is placed on the cleaning table top, and air dry is solidified, and is standby;
(3) steel wire twines
(A) embryonic tube is enclosed within on the mould, mould is enclosed within on the inflatable axle, overall fixed is on wrapping machine; The gas expansion shaft inflation;
(B) the embryonic tube surface is cleaned with alcohol, and the steel wire leader is by storage glue jar gum outlet, and gum outlet height and hole are regulated according to actual needs, push away glue air pressure 0.1MPa～0.8MPa;
(C) start the wrapping machine main shaft, in the trial run of embryonic tube end, line footpath behind the control pierce tap glue; After the glue amount is normal, start feed change unit, begin to twine;
(D) twine omnidistance the end, stop wrapping machine main shaft and feed change unit, the end of winding steel wire is pricked head, severing winding steel wire with steel wire; Integral body is taken off and unsettledly is placed on the falsework drying;
(4) demoulding
With the gas expansion shaft venting, take out gas expansion shaft then, take out mould, product is rested on the special stand, continue to solidify at least 8 hours;
(5) edge sealing
Through the product of visual examination and air-tightness passed examination, two ends are unsettled, evenly coat silica gel at the two ends circumference, and beginning the gluing width from end face is 20mm～120mm; Adhesive tape one end is close to the gluing body, and the other end circumferentially evenly coats, and overlapping 10mm～35mm flattens, and unnecessary sanction is gone; Drying is removed redundance along the end face sanction, promptly gets product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101975281A CN101693404B (en) | 2009-10-22 | 2009-10-22 | Preparation method of heat-resistant light air-conditioning duct |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101975281A CN101693404B (en) | 2009-10-22 | 2009-10-22 | Preparation method of heat-resistant light air-conditioning duct |
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| Publication Number | Publication Date |
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| CN101693404A CN101693404A (en) | 2010-04-14 |
| CN101693404B true CN101693404B (en) | 2011-08-31 |
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| CN2009101975281A Active CN101693404B (en) | 2009-10-22 | 2009-10-22 | Preparation method of heat-resistant light air-conditioning duct |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368744A (en) * | 2016-08-31 | 2017-02-01 | 泰豪科技股份有限公司 | Turbine generator and liquid nitrogen transport pipe manufacturing process for turbine generator |
| CN106362490B (en) * | 2016-10-19 | 2020-05-08 | 四川森普管材股份有限公司 | Infiltration pipe cladding device |
| CN109488812A (en) * | 2018-11-27 | 2019-03-19 | 广东中讯通讯设备实业有限公司 | A kind of high-strength PVC tubing and its processing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4952262A (en) * | 1986-05-05 | 1990-08-28 | Parker Hannifin Corporation | Hose construction |
| CN1608828A (en) * | 2003-10-21 | 2005-04-27 | 任汉敏 | Rubber pipe making process |
| CN201297456Y (en) * | 2008-10-06 | 2009-08-26 | 大庆高新区飞马橡塑制品有限公司 | High pressure steel wire reinforcing hose |
-
2009
- 2009-10-22 CN CN2009101975281A patent/CN101693404B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4952262A (en) * | 1986-05-05 | 1990-08-28 | Parker Hannifin Corporation | Hose construction |
| CN1608828A (en) * | 2003-10-21 | 2005-04-27 | 任汉敏 | Rubber pipe making process |
| CN201297456Y (en) * | 2008-10-06 | 2009-08-26 | 大庆高新区飞马橡塑制品有限公司 | High pressure steel wire reinforcing hose |
Non-Patent Citations (1)
| Title |
|---|
| JP2002－5345A 2002.01.09 |
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| CN101693404A (en) | 2010-04-14 |
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Owner name: SHANGHAI PLASTIC RESEARCH INSTITUTE CO., LTD. Free format text: FORMER NAME: SHANGHAI PLASTIC INST. |
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Address after: Qingpu District Xujing town Shanghai city 201702 West Zhu Lu Road No. 1251 Patentee after: Co., Ltd of Shanghai Plastic Inst. Address before: 200090 Shanghai Yangshupu Road No. 1664 Patentee before: Shanghai Plastic Inst. |