DE2452437C3 - Verfahren und Vorrichtung zur Herstellung von Rohrkupplungen - Google Patents
Verfahren und Vorrichtung zur Herstellung von RohrkupplungenInfo
- Publication number
- DE2452437C3 DE2452437C3 DE19742452437 DE2452437A DE2452437C3 DE 2452437 C3 DE2452437 C3 DE 2452437C3 DE 19742452437 DE19742452437 DE 19742452437 DE 2452437 A DE2452437 A DE 2452437A DE 2452437 C3 DE2452437 C3 DE 2452437C3
- Authority
- DE
- Germany
- Prior art keywords
- mold
- mold cavity
- core elements
- mixture
- core
- 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
Links
- 230000008878 coupling Effects 0.000 title claims description 16
- 238000010168 coupling process Methods 0.000 title claims description 16
- 238000005859 coupling reaction Methods 0.000 title claims description 16
- 238000000034 method Methods 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 9
- 239000004568 cement Substances 0.000 claims description 5
- 239000010425 asbestos Substances 0.000 claims description 4
- 229910052895 riebeckite Inorganic materials 0.000 claims description 4
- 239000011491 glass wool Substances 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 3
- 230000009970 fire resistant effect Effects 0.000 claims description 2
- 229910010272 inorganic material Inorganic materials 0.000 claims description 2
- 239000011147 inorganic material Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 13
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000010408 film Substances 0.000 description 4
- 238000005485 electric heating Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 238000004512 die casting Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- -1 hydroxylpropylethyl Chemical group 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
- B29D23/003—Pipe joints, e.g. straight joints
- B29D23/008—T-joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
- F16L21/03—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed in the socket before connection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/028—Branch units, e.g. made in one piece, welded, riveted of concrete, cement or asbestos-cement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12419073A JPS5074226A (enExample) | 1973-11-05 | 1973-11-05 | |
| JP4118374A JPS5338091B2 (enExample) | 1974-04-10 | 1974-04-10 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2452437A1 DE2452437A1 (de) | 1975-05-15 |
| DE2452437B2 DE2452437B2 (de) | 1979-07-12 |
| DE2452437C3 true DE2452437C3 (de) | 1980-03-20 |
Family
ID=26380750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19742452437 Expired DE2452437C3 (de) | 1973-11-05 | 1974-11-05 | Verfahren und Vorrichtung zur Herstellung von Rohrkupplungen |
Country Status (5)
| Country | Link |
|---|---|
| BR (1) | BR7409205A (enExample) |
| DE (1) | DE2452437C3 (enExample) |
| FR (1) | FR2250062A1 (enExample) |
| GB (1) | GB1481470A (enExample) |
| IT (1) | IT1023133B (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2714447B1 (fr) * | 1993-12-23 | 1996-03-08 | Tuyaux Bonna | Pièce de branchement. |
| DE102021103775A1 (de) | 2021-02-17 | 2022-08-18 | Bürkert Werke GmbH & Co. KG | Baugruppe von Fittings, Ventilsystem und Fertigungsverfahren für Fittings |
-
1974
- 1974-10-29 GB GB4663974A patent/GB1481470A/en not_active Expired
- 1974-10-31 IT IT5383074A patent/IT1023133B/it active
- 1974-11-04 BR BR920574A patent/BR7409205A/pt unknown
- 1974-11-05 DE DE19742452437 patent/DE2452437C3/de not_active Expired
- 1974-11-27 FR FR7438928A patent/FR2250062A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2250062A1 (enExample) | 1975-05-30 |
| DE2452437A1 (de) | 1975-05-15 |
| DE2452437B2 (de) | 1979-07-12 |
| IT1023133B (it) | 1978-05-10 |
| GB1481470A (en) | 1977-07-27 |
| BR7409205A (pt) | 1976-05-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |