JPH07286743A - Covered copper tube for air conditioner and manufacture thereof - Google Patents
Covered copper tube for air conditioner and manufacture thereofInfo
- Publication number
- JPH07286743A JPH07286743A JP10178494A JP10178494A JPH07286743A JP H07286743 A JPH07286743 A JP H07286743A JP 10178494 A JP10178494 A JP 10178494A JP 10178494 A JP10178494 A JP 10178494A JP H07286743 A JPH07286743 A JP H07286743A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- air conditioner
- peeling
- fusion
- coated copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Other Air-Conditioning Systems (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Thermal Insulation (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、エアコン用被覆銅管お
よびその製造方法、詳しくは、断熱被覆した一対の配管
材を相互に熱融着して形成されるエアコン用配管および
その製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coated copper pipe for an air conditioner and a method for manufacturing the same, and more particularly to a pipe for an air conditioner formed by heat-sealing a pair of heat insulating coated piping materials and a method for manufacturing the same. .
【０００２】[0002]
【従来の技術】断熱被覆した一対の配管材を相互に熱融
着したペア配管材は、２本の配管を同時に行うことがで
き、施工現場でめんどうな保温材を巻く必要もなく、配
管工事を省力化することができるため、冷・暖兼用のエ
アコン配管材として使用されている。2. Description of the Related Art A pair of piping materials in which a pair of heat-insulating piping materials are heat-sealed to each other can perform two pipes at the same time, and it is not necessary to wind a troublesome heat insulating material at the construction site. Since it can save labor, it is used as an air conditioner piping material for both cooling and warming.
【０００３】この断熱被覆配管材は、図７に示すよう
に、銅管Ｔに耐熱性、高断熱性の発泡ポリエチレンの内
断熱層７を被覆し、その上に耐候性の優れたポリエチレ
ン表皮層９をそなえた外断熱層８を被覆してなるもの
で、外断熱層８はエンボス仕上して外面に四角錐状の独
立した突起を形成し、曲げ加工した際にしわが生じても
目立たないようにしている。しかして、かかる配管材
２、３はその被覆部外面の表皮層を相互に熱融着して形
成され、エアコン配管施工時、被覆銅管１の一部は熱融
着部を引き剥がして配管される。As shown in FIG. 7, this heat-insulating coated pipe material coats a copper tube T with an inner heat-insulating layer 7 of heat-resistant and highly heat-insulating foamed polyethylene, and a polyethylene skin layer having excellent weather resistance formed thereon. It is formed by coating an outer heat-insulating layer 8 provided with 9. The outer heat-insulating layer 8 is embossed to form independent pyramidal protrusions on the outer surface so that wrinkles do not stand out when bent. I have to. Then, the piping materials 2 and 3 are formed by mutually heat-sealing the skin layers on the outer surface of the coating portion, and when the air conditioner piping is installed, a part of the coated copper pipe 1 is peeled off the heat-sealing portion to form a pipe. To be done.
【０００４】しかしながら、上記エアコン用被覆銅管１
は、長さ方向の全長にわたって熱融着部５が形成され接
着強度が大きいことに起因して、引き剥がしが容易では
なく、施工現場において、図８に示すように、配管材
２、３をＸ、Ｙ方向に引き剥がした場合、例えば、図９
に示すように、表皮部９と外断熱層８にハガレ部分６が
生じ、外観上著しい欠陥を与える。However, the above-mentioned air conditioner coated copper tube 1
Is not easy to peel off due to the fact that the heat-sealed portion 5 is formed over the entire length in the length direction and the adhesive strength is large, and at the construction site, as shown in FIG. When peeled off in the X and Y directions, for example, as shown in FIG.
As shown in FIG. 5, the peeling portion 6 is generated in the skin portion 9 and the outer heat insulating layer 8 and gives a remarkable defect in appearance.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、ペア配管材
を形成するエアコン用被覆銅管における上記従来の問題
点を解消するためになされたものであり、その目的は、
容易に引き剥がすことができ、引き剥がしにおいて表皮
層と外断熱層のハガレ部分が生じることがなく、外観
性、施工性を向上させたエアコン用被覆銅管およびその
製造方法を提供することにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems in a coated copper pipe for an air conditioner which forms a pair of piping materials, and its object is to:
An object of the present invention is to provide a coated copper pipe for an air conditioner that can be easily peeled off, does not cause peeling of the skin layer and the outer heat insulating layer during peeling, and has improved appearance and workability, and a manufacturing method thereof. .
【０００６】[0006]
【課題を解決するための手段】上記の目的を達成するた
めの本発明によるエアコン用被覆銅管は、外面に表皮樹
脂層を設けた発泡断熱材をもって断熱被覆した一対の配
管材の被覆部を相互に熱融着して形成されるエアコン用
被覆銅管において、該被覆銅管の熱融着部の長さ方向に
非融着部が適宜間隔をおいて設けられていることを構成
上の特徴とする。A coated copper pipe for an air conditioner according to the present invention to achieve the above object comprises a pair of pipe material covered with a foamed heat insulating material having a skin resin layer on its outer surface. In a coated copper pipe for an air conditioner formed by heat-sealing each other, non-fused parts are provided at appropriate intervals in the length direction of the heat-sealed part of the coated copper pipe. Characterize.
【０００７】また、上記の目的を達成するための本発明
によるエアコン用被覆銅管の製造方法は、外面に表皮樹
脂層を設けた発泡断熱材をもって断熱被覆した一対の配
管材を、対向して配設される加圧ロールにより会合、接
触させ、該接触部を加熱、溶融することにより配管材を
相互に熱融着する方法において、少なくとも一方の加圧
ロールを、その軸心から配管材と加圧ロールとの当接面
までの距離が加圧ロールの回転中に変化するよう形成す
ることによって、加圧ロールにより会合する配管材が間
欠的に非接触状態になるようにし、一対の配管材の熱融
着部に間隔を置いて非融着部が形成されるようにしたこ
とを特徴とする。Further, in the method for manufacturing a coated copper pipe for an air conditioner according to the present invention to achieve the above object, a pair of piping materials, which are heat-insulated and covered with a foamed heat insulating material having a skin resin layer on the outer surface, are opposed to each other. In a method of bringing the pipe materials into contact with each other by heating and melting the contact portions by a pressure roll arranged, at least one pressure roll is connected to the pipe material from its axis. By forming the distance to the contact surface with the pressure roll to change during the rotation of the pressure roll, the piping materials associated with the pressure roll are intermittently brought into a non-contact state, and a pair of pipes It is characterized in that non-fused portions are formed at intervals in the heat-fused portion of the material.
【０００８】本発明のエアコン用被覆銅管は、図１およ
び図２に示すように、配管材２、３の熱融着部５の長さ
方向に非融着部４が適宜間隔をおいて設けられている。
被覆銅管１を構成する配管材２、３の構成は従来と同様
であり、Ｔは銅管、７は高発泡耐熱性ポリエチレンから
なる内断熱層、８はポリエチレンの高発泡体からなる外
断熱層、９はポリエチレンの表皮層であり、外面にはそ
の全面に四角錐状の微小突起を設けたものである。な
お、内外断熱層は、例えば板状の断熱材を曲成し、その
側縁を熱融着して形成され、外面の四角錐状突起は表皮
層を外断熱層へ熱融着する際に成形ロールでエンボス加
工することにより形成することができる。In the coated copper pipe for an air conditioner of the present invention, as shown in FIGS. 1 and 2, the non-fused portions 4 are appropriately spaced in the longitudinal direction of the heat-fused portions 5 of the piping materials 2, 3. It is provided.
The piping materials 2 and 3 constituting the coated copper pipe 1 are the same as the conventional ones, T is a copper pipe, 7 is an inner heat insulation layer made of highly foamed heat-resistant polyethylene, and 8 is an outer heat insulation made of highly foamed polyethylene. A layer 9, a skin layer of polyethylene, is provided with quadrangular pyramid-shaped minute projections on the entire outer surface. The inner and outer heat insulating layers are formed, for example, by bending a plate-shaped heat insulating material and heat-sealing the side edges thereof, and the quadrangular pyramidal projections on the outer surface are used when heat-sealing the skin layer to the outer heat-insulating layer. It can be formed by embossing with a forming roll.
【０００９】本発明のエアコン用被覆銅管１は、非融着
部４の形成により、引き剥がしが容易となり、引き剥が
し時、非融着部４にハガレ部分６が生じることがなく、
融着部５には若干のハガレ部分が生じる場合もあるが、
ハガレ部６の形成は従来に比べきわめて低減される。融
着部５および非融着部４の長さ、間隔は使用状況などに
合わせて適宜選択することができるが、取扱い時におけ
る分離を避け、かつ引き剥がしを容易にするため、融着
部５を30mm以上とするのが好ましい。The air conditioner-coated copper pipe 1 of the present invention can be easily peeled off due to the formation of the non-fusing part 4, and the peeling part 6 does not occur on the non-fusing part 4 at the time of peeling.
There may be some peeling on the fused portion 5,
The formation of the peeling portion 6 is extremely reduced as compared with the conventional case. The lengths and intervals of the fusion-bonding portion 5 and the non-fusion-bonding portion 4 can be appropriately selected according to the usage conditions, etc. However, in order to avoid separation during handling and facilitate peeling, the fusion-bonding portion 5 Is preferably 30 mm or more.
【００１０】被覆銅管１は、通常、図３に示すように、
断熱被覆した一対の配管材２、３をＺ方向に移送して、
対向して配設され対向面にＶ字形の加圧部をそなえた加
圧ロール１０により会合、接触させ、接触部を熱風ノズ
ル１１により加熱、溶融し、配管材２、３を接触部にお
いて熱融着することにより製造されている。図３におい
て、１２、１３はそれぞれ配管２および配管３に対する
ガイドロールである。The coated copper tube 1 is usually formed as shown in FIG.
Transfer the pair of heat-insulated piping materials 2, 3 in the Z direction,
The pressure rolls 10 are provided so as to face each other and are provided with V-shaped pressure portions on the opposite surfaces to bring them into contact with each other, and the contact portions are heated and melted by the hot air nozzle 11 to heat the piping materials 2 and 3 at the contact portions. It is manufactured by fusing. In FIG. 3, reference numerals 12 and 13 denote guide rolls for the pipe 2 and the pipe 3, respectively.
【００１１】加圧ロールは、ロール部１４と軸部１５よ
り構成され、従来は、配管材２、３の側面から均等な圧
力を付与するために、図１０に示すように、ロール部１
４は平面からみた場合に円形に形成され、中心に軸部１
５が配置されたロール１０Ｄが使用されるが、本発明に
おいては、図４に示すように、少なくとも一方の加圧ロ
ールのロール部１４を平面からみた場合に軸心からの寸
法Ｒ1 、Ｒ2 の異なる異型ロールに形成されＶ字形加圧
面も異型ロールに対応した形状の加圧ロール１０Ａとす
る。The pressure roll comprises a roll portion 14 and a shaft portion 15. Conventionally, in order to apply a uniform pressure from the side surfaces of the piping materials 2 and 3, as shown in FIG.
4 is formed in a circular shape when seen from a plane, and the shaft portion 1 is provided at the center.
Although the roll 10D in which the rolls 5 are arranged is used, in the present invention, as shown in FIG. 4, when the roll portion 14 of at least one of the pressure rolls is viewed from the plane, the dimensions R 1 and R The pressure roll 10A is formed in two different shape rolls and has a V-shaped pressure surface corresponding to the shape of the shape roll.
【００１２】上記異型の加圧ロール１０Ａを使用するこ
とにより、加圧ロールの軸心から配管材２または３と加
圧ロール１０Ａとの当接面までの距離が加圧ロール１０
Ａの回転中に変化し、加圧ロール１０Ａにより会合する
配管材２、３が間欠的に非接触状態となるから、配管材
２、３に熱融着部に間隔を置いて非融着部が形成される
ことになる。図５に示す円形ロールの軸部１５を偏心さ
せた加圧ロール１０Ｂ、図６に示す楕円型の加圧ロール
１０Ｃを使用した場合にも同様の作用効果を達成するこ
とができる。By using the atypical pressure roll 10A, the distance from the axial center of the pressure roll to the contact surface between the pipe member 2 or 3 and the pressure roll 10A is reduced.
Since the piping materials 2 and 3 that change during the rotation of A and meet by the pressure roll 10A are intermittently brought into a non-contact state, the piping materials 2 and 3 are spaced apart from each other by the heat-sealing portion and the non-welding portion is formed. Will be formed. Similar effects can be achieved also when the pressure roll 10B in which the shaft portion 15 of the circular roll shown in FIG. 5 is eccentric and the elliptical pressure roll 10C in FIG. 6 are used.
【００１３】融着方式としては、配管材２、３の接触部
を熱風により溶融して融着する方法以外に、配管材２、
３を熱板により加熱、溶融して融着する方法もある。熱
風ノズルによる場合は、熱風ノズルを断続的に操作する
ことによっても融着部に間隔を置いて非融着部を形成す
ることもできるが、この場合には熱風ノズルを加熱する
装置を制御する装置が必要となる。熱板による加熱方式
では断続的加熱による非融着部の形成は困難である。As the fusing method, other than the method of fusing the contact portions of the piping materials 2 and 3 with hot air and fusing, the piping materials 2,
There is also a method of heating and melting 3 by a hot plate to fuse them. In the case of using the hot air nozzle, it is also possible to form the non-fused portion at intervals in the fused portion by intermittently operating the hot air nozzle, but in this case, the device for heating the hot air nozzle is controlled. Equipment is required. It is difficult to form the non-fused portion by intermittent heating by the heating method using a hot plate.
【００１４】[0014]
【作用】本発明においては、一対の断熱被覆銅管の被覆
部を熱融着して形成される被覆銅管において、熱融着部
の長さ方向に適宜間隔をおいて非融着部を設けたから、
熱融着された被覆銅管を配管施工時に引き剥がして使用
する場合、引き剥がしが容易で、表皮部と断熱層のハガ
レ部分が生じることがないから、施工性、外観性が向上
する。In the present invention, in the coated copper pipe formed by heat-sealing the coating portions of the pair of heat-insulating coated copper pipes, the non-fusion-bonded portions are formed at appropriate intervals in the length direction of the heat-fusion-bonded portion. Because it was set up,
When the heat-sealed coated copper pipe is peeled off and used at the time of pipe construction, the peeling is easy and peeling of the skin and the heat insulating layer does not occur, so that workability and appearance are improved.
【００１５】[0015]
【実施例】以下、本発明の実施例を説明する。外径6mm
と9mm のJIS H 3300C 1220T-O 銅継目無管に、内断熱層
として発泡倍率３０倍、厚さ5mm の耐熱性ポリエチレン
の高発泡体、外断熱層として発泡倍率１５倍、厚さ3mm
のポリエチレンの高発泡体を被覆し、外断熱層上には2m
m 角、高さ1mm の四角錐状の微小突起を有するポリエチ
レン表皮層を設けた外径寸法が22mmと26mmの配管材を、
加圧ロールとして、図４に示すＭＣナイロン製の異型ロ
ール（Ｒ1:43mm、Ｒ2:38mm、Ｄ82mm) を配置した図３の
熱融着装置を使用し、熱風により融着して、エアコン用
被覆銅管を製造した。EXAMPLES Examples of the present invention will be described below. Outer diameter 6 mm
And JIS H 3300C 1220T-O copper seamless pipe of 9mm and 30mm foam ratio as the inner heat insulating layer, high foam of heat-resistant polyethylene with 5mm thickness, 15 times foam ratio as the outer heat insulating layer, 3mm thickness.
Highly foamed polyethylene of 2 m is coated on the outer insulation layer.
Plumbing materials with an outer diameter of 22 mm and 26 mm, provided with a polyethylene skin layer with square pyramid-shaped minute protrusions of m square and 1 mm height,
As a pressure roll, the MC nylon type irregular rolls (R 1 : 43 mm, R 2 : 38 mm, D 82 mm) shown in FIG. 4 are used, and the air-conditioner is fused by hot air using the thermal fusion device of FIG. A coated copper tube was manufactured.
【００１６】得られた被覆銅管には、交互に融着部と非
融着部が形成され融着部は幅2 〜4mm 、長さ30mmであ
り、非融着部は長さ30mmであった。引張試験によって引
き剥がし力を測定したところ1.0Kgfで、引き剥がしは容
易であり、引き剥がしの際、表皮部と外断熱層にハガレ
部分を生じることはなかった。In the obtained coated copper pipe, fused portions and non-fused portions are alternately formed. The fused portion has a width of 2 to 4 mm and a length of 30 mm, and the non-fused portion has a length of 30 mm. It was When the peeling force was measured by a tensile test, it was 1.0 Kgf, and peeling was easy, and peeling did not occur on the skin and the outer heat insulating layer during peeling.
【００１７】一方、上記配管材を、加圧ロールとして図
１０に示すＭＣナイロン製の円形ロールを配置した熱融
着装置を使用し、熱風により融着して製造したエアコン
用被覆銅管は、全長にわたって融着部が形成され、引張
試験により引き剥がし力を測定したところ1.5Kgfで、引
き剥がしの際、表皮部と外断熱層に図９に示すようなハ
ガレ部分が生じた。On the other hand, a coated copper pipe for an air conditioner manufactured by fusing the above piping material with hot air using a heat fusing device in which a circular roll made of MC nylon shown in FIG. A fused portion was formed over the entire length, and the peeling force was measured by a tensile test to be 1.5 Kgf. When peeling, a peeling portion as shown in FIG. 9 was formed on the skin portion and the outer heat insulating layer.
【００１８】以上、本発明を好ましい実施例に基づいて
説明したが、内外断熱層としてはポリエチレンのほかに
ポリプロピレン、ポリ塩化ビニル、ポリ塩化ビニリデ
ン、ポリスチレン、ポリアクリレート、ポリメタクリレ
ート、エチレン−酢酸ビニル共重合体、エチレン−プロ
ピレン共重合体等の発泡可能な合成樹脂を使用すること
もできる。又、表皮層もポリエチレンのほかにポリプロ
ピレン、アクリロニトリル、塩化ビニル、酢酸ビニル、
ポリアクリレート、ポリメタクリレート、エチレン−酢
酸ビニル共重合体、エチレン−プロピレン共重合体等の
軟質で熱融着可能な合成樹脂又は合成ゴムを使用するこ
とができる。そして外面に設ける突起も四角錐状に限る
ものではないし、突起を設ければ前記するように曲げ加
工してもしわが目立たなくて好ましいが、外面を平滑と
することもできる。さらに断熱層は二層以上とすること
もできるし、単層とすることも可能である。The present invention has been described above based on the preferred embodiments. As the inner and outer heat insulating layers, in addition to polyethylene, polypropylene, polyvinyl chloride, polyvinylidene chloride, polystyrene, polyacrylate, polymethacrylate, ethylene-vinyl acetate copolymer are used. It is also possible to use a foamable synthetic resin such as a polymer or an ethylene-propylene copolymer. In addition to polyethylene, polypropylene, acrylonitrile, vinyl chloride, vinyl acetate,
A soft and heat-fusible synthetic resin or synthetic rubber such as polyacrylate, polymethacrylate, ethylene-vinyl acetate copolymer and ethylene-propylene copolymer can be used. The protrusions provided on the outer surface are not limited to the quadrangular pyramid shape, and it is preferable that the protrusions are provided so that the wrinkles do not stand out when bent as described above, but the outer surface can be made smooth. Further, the heat insulating layer may be composed of two or more layers, or may be a single layer.
【００１９】[0019]
【発明の効果】以上のとおり、本発明によれば、引き剥
がしが容易で、引き剥がし時、表皮部と断熱層にハガレ
部分が生じることがなく、施工性、外観性に優れたエア
コン用被覆銅管が提供される。全長にわたり完全な熱融
着部を形成する必要がないから、良品範囲が広がって製
造が容易となるという利点もある。As described above, according to the present invention, the air-conditioning coating which is easy to peel off, has no peeling portion on the skin and the heat insulating layer at the time of peeling, and has excellent workability and appearance. Copper tubing is provided. Since it is not necessary to form a complete heat-sealed portion over the entire length, there is an advantage that the range of non-defective products is widened and manufacturing is easy.
【図１】本発明により成形されたエアコン用被覆銅管の
一部側面図である。FIG. 1 is a partial side view of a coated copper tube for an air conditioner formed according to the present invention.
【図２】図１のＡ−Ａ線に沿う断面図である。FIG. 2 is a sectional view taken along the line AA of FIG.
【図３】本発明のエアコン用被覆銅管の熱融着装置を示
す一部斜視面である。FIG. 3 is a partial perspective view showing a heat fusion apparatus for a coated copper pipe for an air conditioner of the present invention.
【図４】図３の熱融着装置に配置する本発明の加圧ロー
ルの実施例を示す図である。FIG. 4 is a view showing an embodiment of a pressure roll of the present invention arranged in the heat fusion apparatus of FIG.
【図５】本発明の加圧ロ−ルの他の実施例を示す平面図
である。FIG. 5 is a plan view showing another embodiment of the pressure roll of the present invention.
【図６】本発明の加圧ロールのさらに他の実施例を示す
平面図である。FIG. 6 is a plan view showing still another embodiment of the pressure roll of the present invention.
【図７】従来のエアコン用被覆銅管を示す一部斜視図で
ある。FIG. 7 is a partial perspective view showing a conventional coated copper pipe for an air conditioner.
【図８】図７のエアコン用被覆銅管の端面図である。8 is an end view of the coated copper pipe for an air conditioner of FIG. 7. FIG.
【図９】従来のエアコン用被覆銅管を引き剥がした場合
の側面図である。FIG. 9 is a side view when a conventional coated copper pipe for an air conditioner is peeled off.
【図１０】図３の熱融着装置に配置する従来の加圧ロー
ルを示す図である。FIG. 10 is a view showing a conventional pressure roll arranged in the heat fusion apparatus of FIG.
１ エアコン用被覆銅管 ２ 断熱被覆配管材 ３ 断熱被覆配管材 ４ 非融着部 ５ 融着部 ６ ハガレ部分 ７ 内断熱層 ８ 外断熱層 ９ 表皮層 10 加圧ロール 10A 異型ロール 10B 偏心ロール 10C 楕円型ロール 10D 円形ロール 11 熱風ノズル 12 ガイドロール 13 ガイドロール 14 ロール部 15 軸部 1 Coated Copper Pipe for Air Conditioner 2 Insulation Coated Piping Material 3 Insulation Coated Piping Material 4 Non-fused Part 5 Fused Part 6 Stripped Part 7 Inner Insulation Layer 8 Outer Insulation Layer 9 Skin Layer 10 Pressure Roll 10A Variant Roll 10B Eccentric Roll 10C Elliptical roll 10D Circular roll 11 Hot air nozzle 12 Guide roll 13 Guide roll 14 Roll section 15 Shaft section
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｂ３２Ｂ 15/08 Ｅ Continuation of the front page (51) Int.Cl. 6 Identification number Office reference number FI technical display area // B32B 15/08 E
Claims (2)
もって被覆した一対の配管材の被覆部を相互に熱融着し
て形成されるエアコン用被覆銅管において、該被覆銅管
の熱融着部の長さ方向に非融着部が適宜間隔をおいて設
けられていることを特徴とするエアコン用被覆銅管。1. A coated copper pipe for an air conditioner, which is formed by heat-sealing a coating portion of a pair of piping materials coated with a foamed heat insulating material having a skin resin layer on the outer surface thereof. A coated copper pipe for an air conditioner, wherein non-fused portions are provided at appropriate intervals in the lengthwise direction of the fused portion.
もって被覆した一対の配管材を、対向して配設される加
圧ロールにより会合、接触させ、該接触部を加熱、溶融
することにより配管材を相互に熱融着する方法におい
て、少なくとも一方の加圧ロールを、その軸心から配管
材と加圧ロールとの当接面までの距離が加圧ロールの回
転中に変化するように形成することによって、加圧ロー
ルにより会合する配管材が間欠的に非接触状態になるよ
うにし、一対の配管材の熱融着部に間隔を置いて非融着
部が形成されるようにしたことを特徴とするエアコン用
被覆銅管の製造方法。2. A pair of piping materials coated with a foamed heat insulating material having a skin resin layer on the outer surface thereof are brought into contact and brought into contact with each other by pressure rolls arranged facing each other, and the contact portion is heated and melted. In the method of heat-sealing the piping materials to each other, the distance from at least one of the pressure rolls to the contact surface between the piping material and the pressure rolls is changed during rotation of the pressure rolls. By forming in such a manner, the piping materials associated with each other by the pressure rolls are intermittently brought into a non-contact state, and the non-fusing portions are formed at intervals in the heat-fusing portions of the pair of piping materials. A method of manufacturing a coated copper pipe for an air conditioner, which is characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10178494A JPH07286743A (en) | 1994-04-15 | 1994-04-15 | Covered copper tube for air conditioner and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10178494A JPH07286743A (en) | 1994-04-15 | 1994-04-15 | Covered copper tube for air conditioner and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07286743A true JPH07286743A (en) | 1995-10-31 |
Family
ID=14309818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10178494A Pending JPH07286743A (en) | 1994-04-15 | 1994-04-15 | Covered copper tube for air conditioner and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07286743A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010007824A (en) * | 2008-06-30 | 2010-01-14 | Burest Kogyo Kenkyusho Co Ltd | Fixing metal fitting and fixing method of heat insulation coated copper pipe |
| JP2010234705A (en) * | 2009-03-31 | 2010-10-21 | Hitachi Chemical Techno Service Co Ltd | Foamed polyolefin resin coated compound piping and production process thereof |
-
1994
- 1994-04-15 JP JP10178494A patent/JPH07286743A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010007824A (en) * | 2008-06-30 | 2010-01-14 | Burest Kogyo Kenkyusho Co Ltd | Fixing metal fitting and fixing method of heat insulation coated copper pipe |
| JP2010234705A (en) * | 2009-03-31 | 2010-10-21 | Hitachi Chemical Techno Service Co Ltd | Foamed polyolefin resin coated compound piping and production process thereof |
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