SU1473934A1 - Method of producing heat-exchangers - Google Patents
Method of producing heat-exchangers Download PDFInfo
- Publication number
- SU1473934A1 SU1473934A1 SU874243772A SU4243772A SU1473934A1 SU 1473934 A1 SU1473934 A1 SU 1473934A1 SU 874243772 A SU874243772 A SU 874243772A SU 4243772 A SU4243772 A SU 4243772A SU 1473934 A1 SU1473934 A1 SU 1473934A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- heat exchanger
- heat
- metal mesh
- mold
- heat exchangers
- Prior art date
Links
Abstract
Изобретение относитс к теплотехнике, в частности к способам изготовлени теплообменников. Цель изобретени - повышение качества при изготовлении теплообменников с термосифонами за счет повышени эффективности теплообмена и герметичности. Из порошкообразного материала путем его прессовани в форме изготавливают продольные симметричные половины теплообменника. В качестве исходного порошкообразного материала используют полиэтилен высокого давлени , в который добавл ют от 5 до 70% порошкообразного наполнител - порошка окислов металлов. Затем половины теплообменника сопр гают, размеща предварительно между ними металлическую сетку 7 с размером чеек от 50 до 500 мкм. Теплообменник нагревают пропусканием через сетку 7 электрического тока, поддержива в его полости избыточное давление от 0,15 до 0,20 МПа. По достижении требуемой температуры нагрева заготовки обжимают в пресс-форме, обеспечива неразъемное соединение. Дл повышени прочности заготовки могут быть армированы металлической сеткой, введенной в порошкообразный материал перед прессованием. При этом обеспечиваетс равномерный прогрев стыка, а следовательно, герметичность теплообменника. 1 з.п. ф-лы. 4 ил.The invention relates to heat engineering, in particular to methods for manufacturing heat exchangers. The purpose of the invention is to improve the quality in the manufacture of heat exchangers with thermosiphons by increasing the efficiency of heat exchange and tightness. The longitudinal symmetric halves of the heat exchanger are made from the powdered material by pressing it into a mold. High-pressure polyethylene is used as the starting powder material, in which from 5 to 70% of powdered filler is added — metal oxide powder. Then, the half of the heat exchanger mates by placing in advance between them a metal grid 7 with a cell size from 50 to 500 μm. The heat exchanger is heated by passing an electric current through the grid 7, maintaining an excess pressure in its cavity from 0.15 to 0.20 MPa. Upon reaching the required temperature, the billet is pressed into the mold, providing a one-piece connection. To increase the strength of the workpiece, they can be reinforced with a metal mesh inserted into the powder material before pressing. This ensures uniform heating of the joint and, therefore, tightness of the heat exchanger. 1 hp f-ly. 4 il.
Description
Фие.1Phie.1
Фие.ЗFi.Z
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874243772A SU1473934A1 (en) | 1987-03-09 | 1987-03-09 | Method of producing heat-exchangers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874243772A SU1473934A1 (en) | 1987-03-09 | 1987-03-09 | Method of producing heat-exchangers |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1473934A1 true SU1473934A1 (en) | 1989-04-23 |
Family
ID=21303787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU874243772A SU1473934A1 (en) | 1987-03-09 | 1987-03-09 | Method of producing heat-exchangers |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1473934A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4037508A1 (en) * | 1989-11-30 | 1991-06-06 | Vaillant Joh Gmbh & Co | Heat exchanger mfr. process - involves two=part deflection chamber with bent connection edges |
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1987
- 1987-03-09 SU SU874243772A patent/SU1473934A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР № 243184, кл. В 23 Р 15/26, 14.10.86. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4037508A1 (en) * | 1989-11-30 | 1991-06-06 | Vaillant Joh Gmbh & Co | Heat exchanger mfr. process - involves two=part deflection chamber with bent connection edges |
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