SU884790A1 - Filler for tube cold bending - Google Patents

Filler for tube cold bending Download PDF

Info

Publication number
SU884790A1
SU884790A1 SU802880384A SU2880384A SU884790A1 SU 884790 A1 SU884790 A1 SU 884790A1 SU 802880384 A SU802880384 A SU 802880384A SU 2880384 A SU2880384 A SU 2880384A SU 884790 A1 SU884790 A1 SU 884790A1
Authority
SU
USSR - Soviet Union
Prior art keywords
filler
cold bending
caustic soda
pipes
bending
Prior art date
Application number
SU802880384A
Other languages
Russian (ru)
Inventor
Петр Мефодиевич Стефаненко
Сергей Александрович Пупцев
Николай Гурьевич Усов
Владимир Иванович Леванштьян
Original Assignee
Stefanenko Petr M
Puptsev Sergej A
Usov Nikolaj G
Levanshtyan Vladimir
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 Stefanenko Petr M, Puptsev Sergej A, Usov Nikolaj G, Levanshtyan Vladimir filed Critical Stefanenko Petr M
Priority to SU802880384A priority Critical patent/SU884790A1/en
Application granted granted Critical
Publication of SU884790A1 publication Critical patent/SU884790A1/en

Links

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)

Description

(54) НАПОЛНИТЕЛЬ ДЛЯ ХОЛОДНОЙ ГИБКИ ТРУБ(54) FILLER FOR COLD PIPE BENDING

t.t.

Изобретение относитс  к обработке металлов давлением, в частности к трубогибочному производству.The invention relates to the processing of metals by pressure, in particular to pipe bending production.

Известен наполнитель дл  холодной гибки труб в виде сорбита с введенным в него гли-. церином. Известный наполнитель хорошо раствор етс  в воде, обладает моющим свойством, не вызывает коррозии на стальных и алюминиевых трубах, после застывани  обладает хорошими пластическими и смазывающими свойствами, нелетуч, нетоксичен, невзрывоопасен t.A known filler for cold bending of pipes in the form of sorbitol with gly- introduced into it. cerin. The known filler dissolves well in water, has detergent properties, does not cause corrosion on steel and aluminum pipes, after curing it has good plastic and lubricating properties, non-volatile, non-toxic, non-explosive.

Недостатком известного наполнешш  вл етс  то, что дл  каждой гибки трубы требуетс  нова  порци  наполнител , так как сорбит после его использовани  из трубы вымываетс  водой, т.е. требуетс  большой расход наполнител .A disadvantage of the known filling is that a new portion of filler is required for each pipe bend, since after its use sorbitol is washed out of the pipe with water, i.e. high filler consumption required.

Цель изобретени  - сокраще1ше расхода наполнител  при гибке труб.The purpose of the invention is to reduce the consumption of filler during pipe bending.

Указанна  цель достигаетс  тем, что в качестве наполнител  дл  холодной гибки труб примен етс  раствор едкого натра.This goal is achieved by using caustic soda solution as a filler for cold bending of pipes.

Применение едкого натра в качестве наполнител  дл  холодной гибки труб производитс  следующим образом.The use of caustic soda as a filler for cold bending pipes is as follows.

Дл  холодной гибки труб в зависимости от окружающей температуры примен ют раствор едкого натра необходимой концентрации. Предлагаетс  примен ть раствор такой концентрации , температура затвердевани  которого на 4-5°С выше температуры -окружающего воздуха, где производ т гибку труб. Наto пример, дл  условий гибки труб с температурой окружающей среды 20°С примен етс  . раствор едкого натра с концентрацией 113 г NaOH/100 мл воды, который затвердевает при 24° с.Depending on the ambient temperature, caustic soda solution of necessary concentration is used for cold bending of pipes. It is proposed to apply a solution of this concentration, the solidification temperature of which is 4-5 ° C higher than the temperature of the ambient air where the pipes are bent. In this example, for the conditions of bending pipes with an ambient temperature of 20 ° C is used. a solution of caustic soda with a concentration of 113 g of NaOH / 100 ml of water, which solidifies at 24 ° C.

ISIS

Подогретый на 3-4 С выше температуры затвердевани  раствор едкого натра заливают в подготовленную дл  гибки трубу, котора  с одной стороны закрыта пробкой. Через несколько минут, благодар  тЬплу,что темпераiO тура окружающего воздуха на 4-5° С ниже температуры затвердевани  раствор NaOH превращаетс  в твердое состо иие. После затвердевани  раствора производитс  гибка 3 fpy6bt. Затем труба подогреваетс  на 3-4° С выше температуры затвердевани , раствор переходит в жидкое состо ние и используетс  дл  гибки следующих труб. При нахождении раствора едкого натра в трубах он хорошо очищает их внутреннюю поверхность, поэтому его особенно эффективно примен ть при гибке труб маслос стемы компрессорных холодильных, кислородных и воздушных агрегатов, которые об зательно надо очищать в период подготовки их к монтажу. После использовани  раствора едкого натра дл  холодной гибки труб на воздухоразд лительных станци х, где обычно устанавливаетс  большое количество различных типов комнрессорных агрегатов, его направл ют в технолоA solution of caustic soda heated to 3-4 ° C above the solidification temperature is poured into a pipe prepared for bending, which is closed with a stopper on one side. After a few minutes, due to the fact that the ambient air temperature is 4-5 ° C below the solidification temperature, the NaOH solution turns into a solid state. After the solution has hardened, 3 fpy6bt is flexible. The pipe is then heated 3-4 ° C above the solidification temperature, the solution goes into a liquid state and is used to bend the next pipe. When a solution of caustic soda in pipes is found, it cleans their internal surface well; therefore, it is especially effective to use when bending pipes of the oil of compressor refrigeration, oxygen, and air units, which must be cleaned during their preparation for installation. After using caustic soda solution for cold bending pipes at air distribution stations, where a large number of different types of compressor units are usually installed, it is sent to

ГR

Claims (1)

гический процесс очистки воздуха от двуокиси углерода. Положительный эффект применени  раствора едкого натра достигаетс  за счет сокращени  расхода наполнител  при гибке. Формула изобретени  Применение раствора едкого натра в качестве наполнител  дл  холодной гибки труб. Источники информации, прин тые во внимание при экспертизе 1. Авторское свидетельство СССР fP 307834, кл. В 21 D 9/15, 1971 (прототип).the process of purifying carbon dioxide from the air. The positive effect of the use of caustic soda solution is achieved by reducing the consumption of filler during bending. Claims The use of caustic soda solution as a filler for cold bending pipes. Sources of information taken into account in the examination 1. USSR author's certificate fP 307834, cl. B 21 D 9/15, 1971 (prototype).
SU802880384A 1980-02-11 1980-02-11 Filler for tube cold bending SU884790A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU802880384A SU884790A1 (en) 1980-02-11 1980-02-11 Filler for tube cold bending

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU802880384A SU884790A1 (en) 1980-02-11 1980-02-11 Filler for tube cold bending

Publications (1)

Publication Number Publication Date
SU884790A1 true SU884790A1 (en) 1981-11-30

Family

ID=20876775

Family Applications (1)

Application Number Title Priority Date Filing Date
SU802880384A SU884790A1 (en) 1980-02-11 1980-02-11 Filler for tube cold bending

Country Status (1)

Country Link
SU (1) SU884790A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT503938B1 (en) * 2005-10-13 2008-02-15 Linde Ag METHOD FOR BENDING PIPES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT503938B1 (en) * 2005-10-13 2008-02-15 Linde Ag METHOD FOR BENDING PIPES

Similar Documents

Publication Publication Date Title
BR0314960A (en) Industrial process and installation for fume or gas ultrapurification with full recovery of resulting pollutants
SU884790A1 (en) Filler for tube cold bending
US4033407A (en) Heat exchanger cleaning system
FR2557819B1 (en) PROCESS FOR INCREASING THE PERFORMANCE OF COLD PILGRAM MILLS, AND DEVICE FOR CARRYING OUT SAID METHOD
CN204620571U (en) Steel tube inner hole oil removing system
US1994551A (en) Apparatus for the treatment of the cooling medium for internal combustion engines
GB296498A (en) Scrubber or purifier for refrigerating apparatus
JPS5352211A (en) Estimation method for scale thickness on membrance water tube of converter
US1531989A (en) Method of removing free oxygen from water
JPS54102213A (en) Manufacture of al-mg-si type corrosion resistant, free cutting aluminum alloy pipe or rod with little residual stress
Cragnolino et al. The role of sulfate-reducing and sulfur-oxidizing bacteria on localized corrosion
CN216458321U (en) Corrosion inhibitor production is with agitator tank of being convenient for clearance
FR2723750B1 (en) SCALING AND CORROSION INHIBITOR COMPOSITION FOR PROTECTING SURFACES IN CONTACT WITH WATER AND PROCESS FOR PREPARING THE SAME.
SU1155324A1 (en) Method of bending tubes
FR2236018A1 (en) Glycine cpds for inhibiting metal corrosion - in cooling water systems
Baba et al. Corrosion and Its Prevention of Metals in Sulfamic Acid Solution (Part 1)
ES8402885A1 (en) Method of cleaning the inner surfaces of metal pipes of ring or coil form
Weir The Effect of Internal Pipe Lining on Water Quality
CN205420554U (en) Belted steel cleaning equipment
Kurosawa Inhibitors for Automobile Engine Cooling System and Anti-Corrosion Test
SU709198A1 (en) Method of cleaning pipeline internal space
SU798157A1 (en) Refrigerant
FR788034A (en) Process for reproducing, by corrosion, the protrusions or hollows of an original model on materials liable to be corroded, such as metals, glass, etc.
SU1151662A1 (en) Method of withdrawal from gas well the mineralized fluid with gas condensate
SU1025465A1 (en) Pipeline cleaning method