JPH02167728A - Preparation of article made of composite material - Google Patents
Preparation of article made of composite materialInfo
- Publication number
- JPH02167728A JPH02167728A JP1278510A JP27851089A JPH02167728A JP H02167728 A JPH02167728 A JP H02167728A JP 1278510 A JP1278510 A JP 1278510A JP 27851089 A JP27851089 A JP 27851089A JP H02167728 A JPH02167728 A JP H02167728A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- welding
- composite material
- inner layer
- welding material
- 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 238000003466 welding Methods 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 31
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 27
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 27
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims abstract description 7
- 239000011151 fibre-reinforced plastic Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims 1
- 229920001187 thermosetting polymer Polymers 0.000 description 9
- 239000000126 substance Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 101150009512 NPVF gene Proteins 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は、ポリテトラフルオロエチレン製の内層と繊維
強化プラスチック製の補強外層とを含む複合材料製物品
の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a method for manufacturing an article made of composite material, which includes an inner layer made of polytetrafluoroethylene and a reinforced outer layer made of fiber-reinforced plastic.
種々の化学プラントにおける各種構成物品は、種々の化
学物質に対する耐蝕性が要求されると共に、物理的強度
が要求される。かかる要求を満足するために、近時にお
いては、化学物質に対する耐蝕性に優れたポリテトラフ
ロオロエチレン（以下ｒＰＴＦＥ」と略称する場合があ
る）から形成した内層と高物理的強度を有する繊維強化
プラスチック（以下ｒＦＲＰ」と略称する場合がある）
、特に熱硬化性ＦＲＰから形成した外層とを含む複合材
料から種々の構成物品を構成することが提案され、実用
化され始めている。Various constituent articles in various chemical plants are required to have corrosion resistance against various chemical substances as well as physical strength. In order to satisfy such demands, in recent years, an inner layer made of polytetrafluoroethylene (hereinafter sometimes abbreviated as "rPTFE"), which has excellent corrosion resistance against chemical substances, and fiber reinforced material with high physical strength have been developed. Plastic (hereinafter sometimes abbreviated as “rFRP”)
It has been proposed and put into practical use that various articles are constructed from composite materials, particularly including an outer layer formed from thermosetting FRP.
而して、化学プラント等に使用される種々の複合材料製
構成物品を製造するには、例えば射出成形によって所要
形状のＰＴＦＥ製内層を成形し、次いでかかる内層の片
面に軟化溶融状態のＦＲＰを施してこれを硬化せしめ、
かくして上記内層の片面に補強外層を積層せしめること
が意図される。In order to manufacture various composite material components used in chemical plants, etc., a PTFE inner layer of a desired shape is formed by injection molding, and then FRP in a softened and molten state is coated on one side of the inner layer. and harden it by applying
It is thus intended to laminate a reinforcing outer layer on one side of the inner layer.
しかしながら、かかる製造方法においては、物品の形状
又は寸法が異なる毎にＰＴＦＥ製内層形戒用形成当＊価
な成形型を形成することが必要であり、同一の物品を多
数製造する場合以外においては、製造コストが著しく高
価になる。However, in this manufacturing method, it is necessary to form a mold suitable for forming an inner layer made of PTFE every time the shape or size of the article differs, and it is not possible to manufacture a large number of the same article. , the manufacturing cost becomes significantly high.
本発明は、上記事実に鑑みてなされたものであり、その
主たる解決課題は、ＰＴＦＥ製内層とＦＲＰ製外層を含
む複合材料製物品を充分安価に製造することを可能にす
る製造方法を提供することである。The present invention has been made in view of the above facts, and its main objective is to provide a manufacturing method that makes it possible to manufacture a composite material article including an inner layer made of PTFE and an outer layer made of FRP at a sufficiently low cost. That's true.
本発明者は、鋭意研究の結果、相互に溶着せしめること
が不可能であるＰＴＦＥ部材を溶接する適切な方法が開
発されている（例えば特公昭５６−３６０６４号公報）
ことに着目し、ＰＴＦＥ製内層の板状端部の独特な突き
合わせ溶接によってＰＴＦＥ製の内層を形威し、かかる
内層の片面にＦＲＰ！ｌｉｌの外層を形成することによ
って、上記解決課題を達成することができることを見出
した。As a result of intensive research, the present inventor has developed an appropriate method for welding PTFE members that cannot be welded together (for example, Japanese Patent Publication No. 56-36064).
Focusing on this, we shaped the PTFE inner layer by unique butt welding of the plate-shaped ends of the PTFE inner layer, and then applied FRP to one side of the inner layer! It has been found that the above problem can be achieved by forming an outer layer of lil.
即ち、本発明によれば、ポリテトラフルオロエチレン製
の第１の板状端部とポリテトラフルオロエチレン製の第
２の板状端部とを相互に突き合わせ、両者の片面側にお
いて両者に跨がって軟化溶融状態の繊維強化プラスチッ
クを施し且つ硬化せしめて仮付は層を形成し、かくして
該第１の板状端部と該第２の板状端部とを仮付けし、次
いで、該第１の板状端部と該第２の板状端部との他面側
において両者間に溶融状態の溶接材を施し且つかかる溶
接材を硬化せしめて溶接し、しかる後に、該仮付は層を
除去して、該第１の板状端部と該第２の板状端部との該
片面側において両者間に溶融状態の溶接材を施し且つか
かる溶接材を硬化せしめて溶接し、かくしてポリテトラ
フルオロエチレン製の内層を形成し、
次いで、該内層の片面上に、軟化溶融状態の繊維強化プ
ラスチックを施し且つ硬化せしめて補強外層を形成する
、
ことを特徴とする複合材料製物品の製造方法が提供され
る。That is, according to the present invention, a first plate-shaped end made of polytetrafluoroethylene and a second plate-shaped end made of polytetrafluoroethylene are butted against each other, and a straddle is formed between the two on one side. The fiber-reinforced plastic in a softened molten state is applied and hardened to form a tacking layer, thus tacking the first plate-like end and the second plate-like end, and then A molten welding material is applied between the first plate-like end portion and the second plate-like end portion on the other side thereof, and the welding material is hardened and welded, and then the temporary attachment is performed. removing the layer, applying a molten welding material between the first plate-like end portion and the second plate-like end portion on one side, and hardening the welding material to perform welding; An inner layer made of polytetrafluoroethylene is thus formed, and then a fiber-reinforced plastic in a softened and molten state is applied on one side of the inner layer and hardened to form a reinforced outer layer. A manufacturing method is provided.
本発明の製造方法によれば、市販のＰＴＦＥ製部材の板
状端部を突き合わせ溶接することによって種々の寸法或
いは形状の内層を形成することができる。例えば、市販
されている所定寸法のＰＴＦＥ製板状部材を２枚準備し
てかかる２枚の板状部材を相互に突き合わせ溶接せしめ
ると、市販されている所定寸法の倍の大きさの板状部材
を得ることができる。また、１枚の板状部材を円筒状に
せしめて両端部を突き合わせ溶接せしめると、円筒形状
の内層を得ることができる。かくして、種々の形状の内
層を充分安価に形成することができ、従って複合材料製
物品を充分安価に製造することができる。板状端部の突
き合わせ溶接は、仮付け。According to the manufacturing method of the present invention, inner layers of various sizes or shapes can be formed by butt welding the plate-like ends of commercially available PTFE members. For example, if two commercially available PTFE plate members of a predetermined size are prepared and the two plate members are butt welded together, a commercially available plate member twice the predetermined size will be produced. can be obtained. Further, by forming one plate member into a cylindrical shape and butt welding both ends thereof, a cylindrical inner layer can be obtained. In this way, inner layers of various shapes can be formed at a sufficiently low cost, and thus composite articles can be manufactured at a sufficiently low cost. Butt welding of plate ends is tack welding.
を含む独特な方式によって遂行される故に、充分容易に
且つ精密に実施され得る。Because it is carried out by a unique method including, it can be carried out easily and accurately.
以下、添付図面を参照して、本発明の製造方法の好適実
施例について更に詳細に説明する。Hereinafter, preferred embodiments of the manufacturing method of the present invention will be described in more detail with reference to the accompanying drawings.
第１図には、本発明の製造方法によって製造された複合
材料製物品、即ち板状端部が突き合わせ溶接されたＰＴ
ＦＥ製板状部材３０及び３２から形成された内層とこの
内層の片面（第１図において下面）に配設された熱硬化
性ＦＲＰＩＩＩ外層４２とから成る全体としても板状で
ある物品、が図示されている。FIG. 1 shows a composite material article manufactured by the manufacturing method of the present invention, that is, a PTFE article whose plate-like ends are butt welded.
The figure shows an article that is plate-shaped as a whole and is composed of an inner layer formed of FE plate-shaped members 30 and 32 and a thermosetting FRP III outer layer 42 disposed on one side (lower side in FIG. 1) of the inner layer. has been done.
第１図に図示する物品を製造する本発明の製造方法にお
いては、最初に、ＰＴＦＥ製板状部材３０の一端部（第
１の板状端部）とＰＴＦＥ製板状部材３２の一端部（第
２の板状端部）とが仮付けされる。かかる仮付けにおい
ては、第２−Ａ図に図示する如く、板状部材３０の一端
部と板状部材３２の一端部とを相互に突き合わす。そし
て、両者の片面側（第２−Ａ図において下面側）におい
て両者に跨がって軟化溶融状態の熱硬化性ＦＲＰを施し
、かかるＦＲＰを加熱して熱硬化せしめて仮付は層３４
を形成する。熱硬化性ＦＲＰの一例としては、ガラス繊
維層を含有する不飽和ポリエステル樹脂を挙げることが
できる。In the manufacturing method of the present invention for manufacturing the article shown in FIG. second plate-shaped end) are temporarily attached. In such temporary attachment, one end of the plate-like member 30 and one end of the plate-like member 32 are butted against each other, as shown in FIG. 2-A. Then, a thermosetting FRP in a softened and molten state is applied across both sides on one side (lower side in Fig. 2-A), and the FRP is heated to thermoset, and the temporary attachment is done by layer 34.
form. An example of thermosetting FRP is an unsaturated polyester resin containing a glass fiber layer.
次いで、板状部材３０の一端部と板状端部３２の一端部
とが他面側（第２−Ａ図及び第２−Ｂ図において上面側
）において溶接される。かかる溶接においては、上記他
面側にて板状部材３０の一端部と板状部材３２の一端部
との間に軟化溶融状態の溶接材３６が施され冷却硬化せ
しめられる。Next, one end of the plate-shaped member 30 and one end of the plate-shaped end 32 are welded on the other surface side (upper surface side in FIGS. 2-A and 2-B). In such welding, a softened and molten welding material 36 is applied between one end of the plate member 30 and one end of the plate member 32 on the other surface side, and is cooled and hardened.
第２−Ｂ図に図示する如く、板状部材３０の一端部と板
状部材３２の一端部との境界領域に断面形状が三角形等
でよい凹部を形成し、かかる凹部に溶融状態の溶接材３
６を施して硬化せしめるのが好ましい。溶接材３６とし
ては、上記特公昭５６−３６０６４号公報に開示されて
いるパーフルオロアルコキシフルオロカーボンを好都合
に使用することができる。As shown in FIG. 2-B, a recess with a triangular cross-section or the like is formed in the boundary area between one end of the plate member 30 and one end of the plate member 32, and a molten welding material is formed in the recess. 3
It is preferable to perform curing by applying step 6. As the welding material 36, perfluoroalkoxyfluorocarbon disclosed in the above-mentioned Japanese Patent Publication No. 56-36064 can be advantageously used.
上記溶接に続いて、板状部材３０の一端部と板状部材３
２の一端部との上記片面側に施されている上記仮付は層
３４を除去する。かかる除去は、例えば適宜の切削工具
で仮付は層３４を削り取ることによって遂行される。し
かる後に、この片面側において、板状部材３０の一蒐部
と板状部材３２の一端部との間に軟化溶融状態の溶接材
３８を施し硬化せしめて両者を溶接する。かかる溶接に
おいても、第２−Ｃ図に図示する如く、板状部材３０の
一端部と板状部材３２の一端部との境界領域に断面形状
が三角形等でよい凹部を形威し、かかる凹部に溶融状態
の溶接材３８を施して硬化せしめるのが好ましい。かよ
うにして板状部材３０の一端部と板状部材３２の一端部
とが相互に突き合わせ溶接せしめられ、ＰＴＦＥ製内層
が形成される。Following the above welding, one end of the plate member 30 and the plate member 3
The tacking performed on one side with one end of 2 removes layer 34. Such removal is accomplished, for example, by scraping off the tack layer 34 with a suitable cutting tool. Thereafter, on this one side, a softened and molten welding material 38 is applied between one end of the plate member 30 and one end of the plate member 32 and hardened to weld them together. In such welding, as shown in FIG. 2-C, a recess is formed in the boundary area between one end of the plate-like member 30 and one end of the plate-like member 32, and the cross-sectional shape may be triangular or the like. It is preferable to apply the welding material 38 in a molten state to and harden it. In this way, one end of the plate-like member 30 and one end of the plate-like member 32 are butt-welded to each other to form a PTFE inner layer.
上記の通りにして形成したＰＴＦＥ製内層について、通
電検査を遂行することができる。この場合には、第２−
Ｄ図に図示する通り、上記片面側において板状部材３０
の一端部と板状部材３２の一端部との間に施された溶接
材３８を、アルミ箔、カーボン含有合成樹脂等でよい導
電性材料４０で被覆する。そして、周知の形態でよい通
電試験装置（図示していない）を使用して、溶接材３６
と溶接材３８との間で通電試験を遂行する。板状部材３
０の一端部と板状部材３２の一端部とが充分良好に溶接
されている場合には、溶接材３６と溶接材３８とが通電
することはないが、ピンホール等が存在する場合には、
溶接材３６と溶接材３８との間で通電してしまう。A current test can be performed on the PTFE inner layer formed as described above. In this case, the second
As shown in Figure D, the plate member 30 is
The welding material 38 applied between one end of the plate member 32 is covered with a conductive material 40 which may be aluminum foil, carbon-containing synthetic resin, or the like. Then, the welding material 36 is
A current test is performed between the welding material 38 and the welding material 38. Plate member 3
If one end of 0 and one end of the plate member 32 are sufficiently well welded, there will be no electricity between the welding material 36 and the welding material 38, but if there is a pinhole etc. ,
In this case, electricity is passed between the welding material 36 and the welding material 38.
しかる後に、ＰＴＦＥ製内層の片面（第１図において下
面）上に、軟化溶融状態の熱硬化性ＦＲＰを施し、これ
を加熱して熱硬化せしめて補強外層４２を形成する。か
くして、第１図に図示する通りの形態の複合材料製物品
が製造される。補強外層４２を構成する熱硬化性ＦＲＰ
は、ガラス繊維層を含有する不飽和ポリエステル樹脂で
よい。Thereafter, thermosetting FRP in a softened and molten state is applied on one side (lower side in FIG. 1) of the PTFE inner layer, and this is heated to thermoset to form the reinforcing outer layer 42. Thus, a composite material article having the form shown in FIG. 1 is manufactured. Thermosetting FRP constituting the reinforcing outer layer 42
may be an unsaturated polyester resin containing a layer of glass fibers.
ＰＴＦＥ製内層の上記片面上に補強外層４２を形成する
ことに代えて、所望ならばＰＴＦＥ製内層の他面〈第１
図において上面）上に補強外層４２を形成することもで
きる。Instead of forming the reinforcing outer layer 42 on one side of the PTFE inner layer, if desired, the reinforcing outer layer 42 may be formed on the other side of the PTFE inner layer (first
A reinforcing outer layer 42 can also be formed on the upper surface (in the figure).
第３図には、本発明に従う製造方法によって製造された
複合材料製物品の他の形態が図示されている。かかる物
品においては、１枚のＰＴＦＥ製板状部材４４が円筒状
にせしめられて、その一端部（第１の板状端部）とその
他端部（第２の板状端部）とが相互に突き合わせ溶接せ
しめられ、かくして円筒状内層が形成されている。板状
部材４４の両端部の突き合わせ溶接は上述した様式と同
一の様式で遂行することができる。円筒状内層の片面、
即ち外周面上には熱硬化性ＦＲＰ製補強外層４６が形成
されている。かかる補強外層４６も上述した様式と同一
の様式で形成することができる。FIG. 3 illustrates another form of a composite material article manufactured by the manufacturing method according to the present invention. In such an article, one PTFE plate-like member 44 is made into a cylindrical shape, and one end (first plate-like end) and the other end (second plate-like end) are mutually connected. are butt welded together, thus forming a cylindrical inner layer. Butt welding of the ends of plate member 44 can be accomplished in the same manner as described above. One side of the cylindrical inner layer,
That is, a reinforcing outer layer 46 made of thermosetting FRP is formed on the outer peripheral surface. Such a reinforcing outer layer 46 may also be formed in the same manner as described above.
第１図は、本発明の製造方法によって製造された複合材
料製物品の一例を示す断面図。
第２−Ａ図、第２−Ｂ図、第２−Ｃ図及び第２−Ｄ図は
、第１図に示す複合材料製物品を製造する本発明の製造
方法の好適実施例を説明するための断面図。
第３図は、本発明の製造方法によって製造された複合材
料製物品の他の例を示す斜面図。
３０・・・・・板状部材
３２・・・・・板状部材
３４・・・・・仮付は層
３６・・・・・溶接材
３８・・・・・溶接材
４０・・・・・導電製材料
４２・・・・・補強外層FIG. 1 is a sectional view showing an example of a composite material article manufactured by the manufacturing method of the present invention. Figures 2-A, 2-B, 2-C, and 2-D are for explaining a preferred embodiment of the manufacturing method of the present invention for manufacturing the composite material article shown in Figure 1. Cross-sectional view. FIG. 3 is a perspective view showing another example of a composite material article manufactured by the manufacturing method of the present invention. 30...Plate member 32...Plate member 34...Temporarily attached layer 36...Welding material 38...Welding material 40... Conductive material 42...Reinforcement outer layer
Claims (1)
ポリテトラフルオロエチレン製の第２の板状端部とを相
互に突き合わせ、両者の片面側において両者に跨がって
軟化溶融状態の繊維強化プラスチックを施し且つ硬化せ
しめて仮付け層を形成し、かくして該第１の板状端部と
該第２の板状端部とを仮付けし、 次いで、該第１の板状端部と該第２の板状端部との他面
側において両者間に溶融状態の溶接材を施し且つかかる
溶接材を硬化せしめて溶接し、 しかる後に、該仮付け層を除去して、該第１の板状端部
と該第２の板状端部との該片面側において両者間に溶融
状態の溶接材を施し且つかかる溶接材を硬化せしめて溶
接し、かくしてポリテトラフルオロエチレン製の内層を
形成し、次いで、該内層の片面上に、軟化溶融状態の繊
維強化プラスチックを施し且つ硬化せしめて補強外層を
形成する、 ことを特徴とする複合材料製物品の製造方法。 ２、該第１の板状端部と該第２の板状端部との該他面側
における溶接の際には、該第１の板状端部と該第２の板
状端部との境界領域に凹部を形成して、かかる凹部に溶
融状態の溶接材を施す、特許請求の範囲第１項記載の複
合材料製物品の製造方法。 ３、該第１の板状端部と該第２の板状端部との該片面側
における溶接の際には、該第１の板状端部と該第２の板
状端部との境界領域に凹部を形成して、かかる凹部に溶
融状態の溶接材を施す、特許請求の範囲第１項又は第２
項記載の複合材料製物品の製造方法。 ４、該溶接材はパーフルオロアルコキシフルオロカーボ
ンである、特許請求の範囲第１項から第３項までのいず
れかに記載の複合材料製物品の製造方法。 ５、該第１の板状端部と該第２の板状端部との該他面側
及び該片面側の溶接が終了した後に、該片面側或いは該
他面側の溶接材を導電性材料で被覆して、溶接領域の通
電検査を遂行する、特許請求の範囲第１項から第４項ま
でのいずれかに記載の複合材料製物品の製造方法。 ６、該第１の板状端部と該第２の板状端部とは同一の板
状部材の両端部であり、該板状部材を円筒状にせしめて
該第１の板状端部と該第２の板状端部とが相互に突き合
わせられる、特許請求の範囲第１項から第５項までのい
ずれかに記載の複合材料製物品の製造方法。[Scope of Claims] 1. A first plate-shaped end made of polytetrafluoroethylene and a second plate-shaped end made of polytetrafluoroethylene are butted against each other, and the two sides are straddled on one side. A fiber reinforced plastic in a softened and molten state is applied and hardened to form a tacking layer, thus tacking the first plate-like end and the second plate-like end; A molten welding material is applied between the first plate-like end and the second plate-like end on the other side, and the welding material is hardened and welded, and then the temporary bonding layer is applied. Then, a molten welding material is applied between the first plate-like end part and the second plate-like end part on one side of the first plate-like end part, and the welding material is hardened and welded. A method for manufacturing an article made of a composite material, comprising: forming an inner layer made of tetrafluoroethylene, then applying fiber-reinforced plastic in a softened molten state on one side of the inner layer and hardening it to form a reinforcing outer layer. . 2. When welding the first plate-like end and the second plate-like end on the other side, the first plate-like end and the second plate-like end 2. The method of manufacturing a composite material article according to claim 1, wherein a recess is formed in the boundary region of the recess, and a molten welding material is applied to the recess. 3. When welding the first plate-like end and the second plate-like end on the one side, the first plate-like end and the second plate-like end Claims 1 or 2, wherein a recess is formed in the boundary area and a molten welding material is applied to the recess.
A method for producing a composite material article as described in Section 1. 4. The method for manufacturing a composite material article according to any one of claims 1 to 3, wherein the welding material is perfluoroalkoxyfluorocarbon. 5. After the welding of the other side and the one side of the first plate end and the second plate end is completed, the welding material on the one side or the other side is made conductive. 5. A method of manufacturing a composite material article according to any one of claims 1 to 4, comprising coating the article with a material and carrying out an electrical conduction test of the welding area. 6. The first plate-like end and the second plate-like end are both ends of the same plate-like member, and the plate-like member is made into a cylindrical shape to form the first plate-like end. The method for manufacturing a composite material article according to any one of claims 1 to 5, wherein the second plate-like end portion and the second plate-like end portion are butted against each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1278510A JPH02167728A (en) | 1989-10-27 | 1989-10-27 | Preparation of article made of composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1278510A JPH02167728A (en) | 1989-10-27 | 1989-10-27 | Preparation of article made of composite material |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59196857A Division JPS6174830A (en) | 1984-09-21 | 1984-09-21 | Manufacture of molded material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02167728A true JPH02167728A (en) | 1990-06-28 |
| JPH0358904B2 JPH0358904B2 (en) | 1991-09-06 |
Family
ID=17598309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1278510A Granted JPH02167728A (en) | 1989-10-27 | 1989-10-27 | Preparation of article made of composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02167728A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014169080A (en) * | 2009-08-20 | 2014-09-18 | Bridgestone Corp | Tire and tire manufacturing method |
-
1989
- 1989-10-27 JP JP1278510A patent/JPH02167728A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014169080A (en) * | 2009-08-20 | 2014-09-18 | Bridgestone Corp | Tire and tire manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0358904B2 (en) | 1991-09-06 |
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