JPS5527212A - Injection molding nozzle - Google Patents
Injection molding nozzleInfo
- Publication number
- JPS5527212A JPS5527212A JP9951878A JP9951878A JPS5527212A JP S5527212 A JPS5527212 A JP S5527212A JP 9951878 A JP9951878 A JP 9951878A JP 9951878 A JP9951878 A JP 9951878A JP S5527212 A JPS5527212 A JP S5527212A
- Authority
- JP
- Japan
- Prior art keywords
- passway
- width
- area
- flow resistance
- annular
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1603—Multi-way nozzles specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To provide an injection molding nozzle that injects two kinds of fluid including a synthetic resin from a center passway and annular passway surrounding it, characterized by a special nozzle shape to prevent a possible deflection of fluid. CONSTITUTION:Two kinds of fluid including at least one king of synthetic resin are injected from the center passway 1 and annular passways 2,3, surrounding the center passway concentrically into the mold cavity to mold a multi-wall or hollow or matrix structure product. The nozzle sectional area must have following relation: d1>do, (d1/d2)3/3(l1/l/2)>100, DELTAP/(l1+l2)<140, where: d0: width of annular passway (cm), d1: width of area with small flow resistance, d2: width of area with large flow resistance, l1: width of area with small flow resistance, l2: width of area with large flow resistance, P: pressure difference between these areas (kg/cm<2>). Segregated flow pressure is uniformed and deflection is prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9951878A JPS5527212A (en) | 1978-08-17 | 1978-08-17 | Injection molding nozzle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9951878A JPS5527212A (en) | 1978-08-17 | 1978-08-17 | Injection molding nozzle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5527212A true JPS5527212A (en) | 1980-02-27 |
Family
ID=14249460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9951878A Pending JPS5527212A (en) | 1978-08-17 | 1978-08-17 | Injection molding nozzle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5527212A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56501040A (en) * | 1979-07-20 | 1981-07-30 | ||
JPH02229017A (en) * | 1989-01-13 | 1990-09-11 | Husky Injection Molding Syst Ltd | Injection molding method and construction of injection nozzle |
-
1978
- 1978-08-17 JP JP9951878A patent/JPS5527212A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56501040A (en) * | 1979-07-20 | 1981-07-30 | ||
JPH02229017A (en) * | 1989-01-13 | 1990-09-11 | Husky Injection Molding Syst Ltd | Injection molding method and construction of injection nozzle |
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