JPS5951885B2 - Manufacturing method of synthetic resin pump impeller - Google Patents

Manufacturing method of synthetic resin pump impeller

Info

Publication number
JPS5951885B2
JPS5951885B2 JP54090156A JP9015679A JPS5951885B2 JP S5951885 B2 JPS5951885 B2 JP S5951885B2 JP 54090156 A JP54090156 A JP 54090156A JP 9015679 A JP9015679 A JP 9015679A JP S5951885 B2 JPS5951885 B2 JP S5951885B2
Authority
JP
Japan
Prior art keywords
impeller
shroud member
synthetic resin
manufacturing
ultrasonic welding
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.)
Expired
Application number
JP54090156A
Other languages
Japanese (ja)
Other versions
JPS5615318A (en
Inventor
康一 水野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP54090156A priority Critical patent/JPS5951885B2/en
Publication of JPS5615318A publication Critical patent/JPS5615318A/en
Publication of JPS5951885B2 publication Critical patent/JPS5951885B2/en
Expired legal-status Critical Current

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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/301—Three-dimensional joints, i.e. the joined area being substantially non-flat
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91411—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • B29C66/91413—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account the parts to be joined having different temperatures
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/748—Machines or parts thereof not otherwise provided for
    • B29L2031/7496—Pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 本発明は合成樹脂製ポンプ羽根車の製造法に関し、そり
のない羽根車を製造できるようにするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a pump impeller made of synthetic resin, and is capable of manufacturing an impeller without warpage.

一般に家庭用の井戸ポンプ等などの小型のビューカルポ
ンプには合成樹脂製の羽根車が用いられるようになつて
いるが、前記羽根車は密閉型であり、したがつて一体成
形することは不可能であることから、前面シユラウド側
部材と後面シユラウド側部材とに分離して成形したのち
、両者を接着あるいは溶着している。In general, impellers made of synthetic resin are being used in small-sized Beaucal pumps such as household well pumps, but the impellers are of a closed type and therefore cannot be integrally molded. Since it is possible, the front shroud side member and the rear shroud side member are separately formed and then bonded or welded together.

前記前面シユラウド側部材と後面シユラウド側部材との
接着は、一般には超音波溶着機によつて行なつている。The front shroud side member and the rear shroud side member are generally bonded together using an ultrasonic welding machine.

第１図は前記超音波溶着機による溶着手段を示すもので
あり、図中の１は超音波溶着機のホーン、２は受け治具
、３は羽根車の後面シユラウド部材、４は羽根車の前面
シユラウド部材である。Fig. 1 shows the welding means by the ultrasonic welding machine, and in the figure, 1 is the horn of the ultrasonic welding machine, 2 is the receiving jig, 3 is the rear shroud member of the impeller, and 4 is the impeller. This is the front shroud member.

前記ホーン１は超音波溶着機の振動子に接続され、一定
の加圧力により後面シユラウド部材３と前面シユラウド
部材４を接触させた状態で振動し、後面シユラウド部材
３と前面シユラウド部材４の溶着を行う。ところで羽根
車の材料としては機械的性質がきわめてよく、また耐熱
性、耐薬品性等にすぐれているポリアセタール樹脂が使
用されることが多いが、前記ポリアセタール樹脂は超音
波溶着が困難な材料の一つとされており、溶着に際して
は、超音波溶着機の充分な加圧力および充分な発振時間
が必要とされている。The horn 1 is connected to a vibrator of an ultrasonic welding machine, and vibrates with a constant pressure force while keeping the rear shroud member 3 and the front shroud member 4 in contact, thereby welding the rear shroud member 3 and the front shroud member 4. conduct. By the way, polyacetal resin, which has extremely good mechanical properties and excellent heat resistance and chemical resistance, is often used as a material for impellers, but polyacetal resin is one of the materials that are difficult to weld by ultrasonic welding. Therefore, sufficient pressure and sufficient oscillation time of an ultrasonic welding machine are required for welding.

前記溶着部の強度は溶着機の加圧力、発振時間をそれぞ
れ充分に持つことによつて確保することができるが、そ
れに比例するように第２図に示すように羽根車のそりが
発生する。つまり、溶着部の強度を充分確保しようとす
れば羽根車のそりが大きくなつて寸法精度が確保できず
、羽根車の寸法精度を確保しようとすれば溶着部の強度
が確保できない。従来の超音波溶着法において、外径１
４０用型程度の羽根車を溶着するとき、溶着強度を充分
確保しようとすれば第２図に示すそり、つまりＡ寸法が
２用型程度になる。The strength of the welded portion can be ensured by providing sufficient pressure and oscillation time of the welding machine, but warping of the impeller occurs proportionally as shown in FIG. 2. In other words, if an attempt is made to ensure sufficient strength of the welded portion, the warpage of the impeller becomes large and dimensional accuracy cannot be ensured, and if an attempt is made to ensure dimensional accuracy of the impeller, the strength of the welded portion cannot be ensured. In the conventional ultrasonic welding method, the outer diameter 1
When welding an impeller of about 40-size type, if we want to ensure sufficient welding strength, the warp shown in Fig. 2, that is, dimension A, will be about the same as that of 2-size type.

羽根車の溶着部の強度および寸法精度はいずれもポンプ
の性能品質を左右する重要な事項であるが、従来の超音
波溶着法では溶着部の強度、寸法精度の双方を共に満足
するものは得られにくいものであつた。本発明はこのよ
うな従来の欠点に留意し、合成樹脂製のポンプ羽根車の
溶着におけるそりを防止し、寸法精度が良好で、かつ溶
着強度の大きいポンプ羽根車を提供する製造法に係るも
のである。The strength and dimensional accuracy of the welded part of the impeller are both important matters that affect the performance and quality of the pump, but with conventional ultrasonic welding methods, it is difficult to obtain a product that satisfies both the strength and dimensional accuracy of the welded part. It was difficult to get caught. The present invention takes into account these conventional drawbacks and relates to a manufacturing method that prevents warping during welding of synthetic resin pump impellers, provides a pump impeller with good dimensional accuracy, and high welding strength. It is.

以下本発明を詳細に説明する。超音波溶着において、羽
根車のそりは第１図に示すホーン１の形状、受け治具２
の形状、羽根車の形状等に関係なく、常にホーン１側に
凹形状となることが実験により確認された。The present invention will be explained in detail below. In ultrasonic welding, the warpage of the impeller is determined by the shape of the horn 1 and the receiving jig 2 shown in Figure 1.
It has been confirmed through experiments that the impeller always has a concave shape on the horn 1 side, regardless of the shape of the impeller or the like.

これは溶着時のホーン１側と受け治具２側の温度差、つ
まりホーン１側が受け治具２側より温度が高く、また一
般に合成樹脂は熱膨張が大きい状態で溶着することによ
りそりが発生する。したがつて本発明は受け治具２に設
置される羽根車の前面シユラウド部材４を予め加熱して
室温より高い温度に保持し、ホーン１側に設置される後
面シユラウド部材３については室温と同温とする。This is due to the temperature difference between the horn 1 side and the receiving jig 2 side during welding, that is, the temperature on the horn 1 side is higher than the receiving jig 2 side, and generally synthetic resins are welded with large thermal expansion, which causes warping. do. Therefore, in the present invention, the front shroud member 4 of the impeller installed on the receiving jig 2 is preheated and maintained at a temperature higher than room temperature, and the rear shroud member 3 installed on the horn 1 side is heated to the same temperature as room temperature. Make it warm.

超音波溶着機の加圧および発振方法について．は従来の
方法と同じであるが、前記のように羽根車の前面シユラ
ウド部材４、後面シユラウド部材３の温度が管理された
状態において溶着を行えば、溶着部の溶着強度を確保す
るとともに、溶着後の羽根車のそりをなくすことができ
る。たとえばポリアセタール樹脂製の外径１４０ｍｍ程
度の羽根車で、超音波溶着機の加圧力４ｋｇ／Ｃｍ２、
発振時間５ｓｅｃにおいて、後面シユラウド部材３を室
温（２０℃）として、前面シユラウド部材４を７２±２
℃に管理することにより、溶着部の強度を母材の破壊強
度以上にするとともに、溶着後の羽根車のそりを０．３
ｍｍ以下に押えることができた。以上説明したように本
発明の製造法によれば、従来の超音波溶着機のホーンの
形状、治具形状、羽根車形状等を何等変更することなく
、羽根車の温度のみ管理することにより、寸法精度が良
好で、かつ溶着部の強度の大きい羽根車を製造できるも
のであり、その工業的効果の大きいものである。About the pressure and oscillation methods of ultrasonic welding machines. is the same as the conventional method, but if welding is performed while the temperature of the front shroud member 4 and rear shroud member 3 of the impeller is controlled as described above, the welding strength of the welded part is ensured and the welding Warpage of the rear impeller can be eliminated. For example, with an impeller made of polyacetal resin and an outer diameter of about 140 mm, the pressing force of an ultrasonic welding machine is 4 kg/Cm2,
At an oscillation time of 5 seconds, the rear shroud member 3 was set to room temperature (20°C), and the front shroud member 4 was set to 72±2°C.
By controlling the temperature at
I was able to keep it below mm. As explained above, according to the manufacturing method of the present invention, by controlling only the temperature of the impeller without changing the horn shape, jig shape, impeller shape, etc. of the conventional ultrasonic welding machine, It is possible to manufacture an impeller with good dimensional accuracy and high strength at the welded part, which has great industrial effects.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は超音波溶着機の溶着主部の断面図、第２図は前
記超音波溶着機によつて溶着されたポンプの羽根車の断
面図である。 １ ・・・・・・ホーン、２ ・・・・・・受け治具、
３ ・・・・・・後面シユラウド部材、４ ・・・・・
・前面シユラウド部材。FIG. 1 is a sectional view of the welding main part of the ultrasonic welding machine, and FIG. 2 is a sectional view of the impeller of the pump welded by the ultrasonic welding machine. 1... Horn, 2... Receiving jig,
3... Rear shroud member, 4...
・Front shroud member.

Claims (1)

【特許請求の範囲】[Claims] １ 合成樹脂製の前面シユラウド部材と後面シユラウド
部材を超音波溶着法により溶着することによりポンプ羽
根車を形成する方法において、前記前面シユラウド部材
と後面シユラウド部材のうち、受け治具側のシユラウド
部材を予熱した状態で超音波溶着することを特徴とする
合成樹脂製ポンプ羽根車の製造法。1. In a method of forming a pump impeller by welding a front shroud member and a rear shroud member made of synthetic resin by ultrasonic welding, the shroud member on the receiving jig side of the front shroud member and the rear shroud member is A method for manufacturing a synthetic resin pump impeller characterized by ultrasonic welding in a preheated state.
JP54090156A 1979-07-16 1979-07-16 Manufacturing method of synthetic resin pump impeller Expired JPS5951885B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54090156A JPS5951885B2 (en) 1979-07-16 1979-07-16 Manufacturing method of synthetic resin pump impeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54090156A JPS5951885B2 (en) 1979-07-16 1979-07-16 Manufacturing method of synthetic resin pump impeller

Publications (2)

Publication Number Publication Date
JPS5615318A JPS5615318A (en) 1981-02-14
JPS5951885B2 true JPS5951885B2 (en) 1984-12-17

Family

ID=13990622

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54090156A Expired JPS5951885B2 (en) 1979-07-16 1979-07-16 Manufacturing method of synthetic resin pump impeller

Country Status (1)

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JP (1) JPS5951885B2 (en)

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Publication number Priority date Publication date Assignee Title
FR2703111B1 (en) * 1993-03-25 1995-06-30 Ozen Sa ROTOR FOR PUMP COMPRISING TWO WELDED ASSEMBLIES, OBTAINED BY INJECTION MOLDING OF THERMOPLASTIC MATERIALS, AND METHOD FOR MANUFACTURING SUCH A ROTOR.
CN114207289A (en) * 2018-11-08 2022-03-18 吉普工业（澳大利亚）集团有限公司 Pump assembly

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JPS5615318A (en) 1981-02-14

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