PL12923B1 - A method of preparing pipes for bending and a device for this purpose. - Google Patents
A method of preparing pipes for bending and a device for this purpose. Download PDFInfo
- Publication number
- PL12923B1 PL12923B1 PL12923A PL1292328A PL12923B1 PL 12923 B1 PL12923 B1 PL 12923B1 PL 12923 A PL12923 A PL 12923A PL 1292328 A PL1292328 A PL 1292328A PL 12923 B1 PL12923 B1 PL 12923B1
- Authority
- PL
- Poland
- Prior art keywords
- bending
- pipe
- jaws
- sand
- preparing pipes
- Prior art date
Links
- 238000005452 bending Methods 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims 2
- 239000004576 sand Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- YPFNIPKMNMDDDB-UHFFFAOYSA-K 2-[2-[bis(carboxylatomethyl)amino]ethyl-(2-hydroxyethyl)amino]acetate;iron(3+) Chemical compound [Fe+3].OCCN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O YPFNIPKMNMDDDB-UHFFFAOYSA-K 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000754 Wrought iron Inorganic materials 0.000 description 1
Description
W przyrzadzie wedlug wynalazku, który sluzy do unikniecia napelniania ca¬ lej rury piaskiem przy jej zginaniu, czyn¬ nosc przygotowawcza polega na tern, ze tylko te czesc rury, która ma byc wla¬ sciwie wygieta, napelnia sie piaskiem, przyczem czesc ta winna byc z obu stron zamknieta.Przyrzad ten ptozwala szybciej i taniej wykonywac giecie, zwlaszcza rur o wiek¬ szej srednicy.Przyrzad sklada sie z korpusu a, szczek b, sruby przysuWowej stalowej c i blach o- chronnych d. Korpus przyrzadu i szczeki sa wykonane z zeliwa, toczone i frezowa¬ ne, sruba przesuwowa z gwintem plaskim wytoczona jest ze stali. Blachy ochronne sa z zelaza kutego. Cale urzadzenie %jest wykonane odpowiednio do róznych sred¬ nic, przyczem korpus jest wykonany dla pieciu wielkosci, a szczeki z blachami o- chronnemi moga sluzyc dla dwóch wymia¬ rów o zblizonych srednicach wedlug norm rur kotlowych.Do rury, która ma byc wygieta w srod¬ ku, wsuwa sie przyrzad zapomoca prze¬ dluzonego klucza do miejsca, oznaczonego nazewnatrz rury, i zamyka sie przez po¬ krecanie sruby w prawa strone. Wlasciwa waga tego urzadzenia nie pozwala na to, aby sie obracal caly korpus, lecz tylko sa¬ ma sruba. Po skreceniu szczeki rozszerza sie i zamykaja jedna strone rury, poczem rure stawia sie pionowo i wypelnia pia¬ skiem przestrzen zaginania, a nastepnie u- mieszcza sie drugi przyrzad równiez za-pomoca przedluzonego klucza, zamykajac w ten sposób z drugiej strony przestrzeli, zapelniona piaskiem. Nastepnie rure sie wyklepuje, przykrecajac coraz mocniej przyrzad z obu stron, poozem jest ona go¬ towa do giecia. Odleglosc przyrzadów z obu stron od miejsca giecia winna wynosic mniej wiecej 100 do 200 mm. PLIn the device according to the invention, which serves to avoid filling the entire pipe with sand while bending it, the preparatory step consists in the fact that only the part of the pipe that is to be bent properly is filled with sand, while this part should be closed on both sides. This device allows faster and cheaper bending, especially pipes with larger diameters. The example consists of a body a, jaws b, steel sliding bolt c and protective plates d. The device body and jaws are made of cast iron , turned and milled, the sliding bolt with a flat thread is made of steel. The protective plates are of wrought iron. The whole device is made according to different diameters, with the body being made for five sizes, and the jaws with protective plates can serve for two dimensions with similar diameters according to the boiler tube standards. For the pipe that is to be bent into In the middle, the device is slid with an extended wrench to the place marked on the outside of the pipe, and closed by turning the screw to the right. The proper weight of this device does not allow the whole body to rotate, but only the screw itself. After twisting, the jaws expand and close one side of the pipe, then the pipe is put vertically and sand fills the bending space, and then the other device fits, also with the help of the extended key, thus closing the gap filled with sand on the other side . Then the tube is tapped, tightening the device more and more on both sides, the tube is ready for bending. The distance of the devices on both sides from the bending point should be approximately 100 to 200 mm. PL
Claims (3)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL12923B1 true PL12923B1 (en) | 1931-02-28 |
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