SU1482815A1 - Torch for welding thermoplastic materials - Google Patents

Torch for welding thermoplastic materials Download PDF

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Publication number
SU1482815A1
SU1482815A1 SU874324314A SU4324314A SU1482815A1 SU 1482815 A1 SU1482815 A1 SU 1482815A1 SU 874324314 A SU874324314 A SU 874324314A SU 4324314 A SU4324314 A SU 4324314A SU 1482815 A1 SU1482815 A1 SU 1482815A1
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SU
USSR - Soviet Union
Prior art keywords
diameter
nozzle
disk
cylindrical
gas
Prior art date
Application number
SU874324314A
Other languages
Russian (ru)
Inventor
Виктор Евменович Зуев
Игорь Николаевич Шибанов
Наталья Юрьевна Бербасова
Ирина Михайловна Дорес
Татьяна Леонидовна Морозова
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Могилевский Машиностроительный Институт
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Priority to SU874324314A priority Critical patent/SU1482815A1/en
Application granted granted Critical
Publication of SU1482815A1 publication Critical patent/SU1482815A1/en

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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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7394—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
    • B29C66/73941—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset characterised by the materials of both parts being thermosets
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Изобретение относитс  к устройствам дл  сварки термопластов с помощью гор чих газов. Цель изобретени  - снижение расхода электроэнергии за счет пульсации газового потока. Поставленна  цель достигаетс  тем, что в горелке дл  сварки термопластических материалов газовым теплоносителем, содержащей трубчатый корпус, электронагревательный элемент, сопло, рассекатель газового потока, сопло выполнено в виде диффузора с заостренной кромкой, сопр женного с цилиндрическим расширением со ступенчато увеличивающимс  диаметром. При этом горелка снабжена стержнем с закрепленным на одном своем конце диском, по центру которого выполнена цилиндрическа  выточка, направленна  навстречу диффузору. Другим концом стержень закреплен в рассекателе газового потока, который выполнен в виде шайбы с двум  полукруглыми пазами. Диаметр отверсти  сопла находитс  в пределах 0,8...1,2 диаметра цилиндрической выточки диска, а наружный диаметр диска равен 0,6...1,1 диаметра узкой части цилиндрического расширени . Взаимодействие струи нагретого газа, вытекающей с большой скоростью из сопла и периодически действующего обратного потока из цилиндрической выточки диска, приводит к пульсации газа. Колебани  газового потока способствуют более эффективному нагреву, т.к. улучшаетс  теплопередача к присадочному прутку и свариваемому материалу. Благодар  этому температура, необходима  дл  сварки термопластичного материала, достигаетс  раньше. 1 з.п.ф-лы. 1 ил.The invention relates to devices for welding thermoplastics with hot gases. The purpose of the invention is to reduce energy consumption due to the pulsation of the gas stream. This goal is achieved by the fact that in a torch for welding thermoplastic materials a heat transfer gas containing a tubular body, an electric heating element, a nozzle, a gas flow divider, the nozzle is made in the form of a pointed diffuser coupled with cylindrical expansion with a stepwise increasing diameter. In this case, the burner is equipped with a rod with a disk fixed at one end, in the center of which a cylindrical undercut is made, directed towards the diffuser. The other end of the rod is fixed in the gas flow divider, which is made in the form of a washer with two semicircular grooves. The diameter of the orifice of the nozzle is in the range of 0.8 ... 1.2 diameter of the cylindrical undercut of the disk, and the outer diameter of the disk is 0.6 ... 1.1 of the diameter of the narrow part of the cylindrical expansion. The interaction of a jet of heated gas flowing out of the nozzle at high speed and periodically acting backflow from the cylindrical undercut of the disk leads to gas pulsation. Fluctuations of the gas flow contribute to more efficient heating, because heat transfer to the filler bar and the material being welded is improved. Due to this, the temperature required for welding thermoplastic material is reached earlier. 1 hp ff. 1 il.

Description

Изобретение относитс  к сварке пластичных масс, а именно к устройствам дл  сварки термопластичных материалов с помощью газа-теплоносител .The invention relates to the welding of plastic masses, and specifically to devices for welding thermoplastic materials using a heat transfer gas.

Цель изобретени  - повышение производительности труда и снижение расхода электроэнергии за счет пульсации газа.The purpose of the invention is to increase labor productivity and reduce energy consumption due to gas pulsation.

На фиг. 1 изображена горелка; W фиг. 2 - разрез А-А на фиг. 1. iFIG. 1 shows a burner; W of FIG. 2 shows section A-A in FIG. 1. i

Горелка содержит трубчатый корпус 1 электронагревательный элемент 2, закрепленный на изолирующем каркасе 3 и помещенный в керамический цилиндр 4, сопло 5, выполненное в виде диффузора с заостренной кромкой, сопр женного с цилиндрическим расширениThe burner contains a tubular body 1 of the electric heating element 2, mounted on an insulating frame 3 and placed in a ceramic cylinder 4, a nozzle 5, made in the form of a cone with a pointed edge, conjugated with a cylindrical expansion

ем 6 со ступенчато увеличивающимс  диаметром, стержень 7, на одном конце которого установлен рассекатель 8 газового потока, выполненный в виде шайбы с двум  полукруглыми пазами, а на другом конце - диск 9 со скосами на торцах. Диск 9 имеет цилиндрическую выточку 10, расположенную по центру диска 9 на поверхности со сто- роны, обращенной к диффузору. Дл  целенаправленного движени  теплоносител  служат штуцер 11 и мундштук 12, Горелка работает следующим образом .6 with a stepwise increasing diameter, the rod 7, at one end of which a gas flow divider 8 is installed, made in the form of a washer with two semicircular grooves, and at the other end - a disk 9 with bevels on the ends. The disk 9 has a cylindrical recess 10 located in the center of the disk 9 on the surface from the side facing the diffuser. For purposeful movement of the coolant, fitting 11 and mouthpiece 12 are used. The burner works as follows.

Газ-теплоноситель проходит через трубчатый корпус 1, нагреваетс  при помощи нагревательных элементов 2, через рассекатель 8 газового потока попадает в сопло 5. После этого, вытека  из сопла 5 с большой скоростью, он заполн ет цилидцрическое расширение 6 со ступенчато увеличивающимс  диаметром и цилиндрическую выточку 10. При давлении газа в цилиндрической выточке 10 больше давлени  газового потока, выход щего из сопла 5, возникает обратный поток. После этого пульсирующий газовый поток через штуцер 11 и мундштук 12 поступает к сва- риваемым поверхност м термопластичных материалов и присадочному прутку.The heat transfer gas passes through the tubular body 1, is heated with the help of heating elements 2, through the gas flow divider 8 enters the nozzle 5. After this, flowing out of the nozzle 5 with great speed, it fills the cylindrical expansion 6 with a stepwise increasing diameter 10. When the gas pressure in the cylindrical undercut 10 is greater than the pressure of the gas stream exiting the nozzle 5, a reverse flow occurs. After that, the pulsating gas flow through the nozzle 11 and the mouthpiece 12 enters the welded surfaces of thermoplastic materials and the filler rod.

Акустические колебани  рабочего газа способствуют более быстрому нагреву , так как улучшаетс  теплопередача к присадочному прутку и сварочному материалу. Дл  эффективной работы горелки диаметр диффузора 5 долAcoustic oscillations of the working gas contribute to faster heating, as the heat transfer to the filler rod and the welding material is improved. For efficient burner operation, the diffuser diameter is 5 dollars.

5five

Q Q

30 thirty

00

2525

3535

жен находитьс  в пределах 0,8-1,2 диаметра цилиндрической выточки 10 диска 9, а наружный диаметр диска 9 - 0,6-1,1 диаметра узкой части цилиндрического расширени  6.wives are in the range of 0.8-1.2 diameters of the cylindrical undercut 10 of the disk 9, and the outer diameter of the disk 9 is 0.6-1.1 of the diameter of the narrow part of the cylindrical extension 6.

Claims (2)

1.Горелка дл  сварки термопластичных материалов, содержаща  трубчатый корпус, электронагревательный элемент, сопло, рассекатель газового потока, отличающа с  тем, что, с целью повышени  производительности труда и снижени  расхода электроэнергии за счет пульсации газа, сопло выполнено в виде диффузора с заостренной кромкой, сопр женного с цилиндрическим расширением со ступенчато увеличивающимс  диаметром, и снабжено стержнем, закрепленным одним концом на рассекателе и установленным на другом конце стержн  диском со скосами на торцах и с цилиндрической выточкой, расположенной по центру диска на поверхности со стороны, обращенной к диффузору, причем рассекатель выполнен в виде шайбы с двум  полукруглыми пазами.1. A burner for welding thermoplastic materials, comprising a tubular body, an electric heating element, a nozzle, a gas flow divider, characterized in that, in order to increase labor productivity and reduce power consumption due to gas pulsation, the nozzle is designed as a diffuser with a pointed edge, conjugate with a cylindrical expansion with a stepwise increasing diameter, and is equipped with a rod fixed at one end on the divider and mounted at the other end of the rod with a bevel at the end ah and with a cylindrical groove located in the center of the disk on the surface from the side facing the diffuser, and the divider is made in the form of a washer with two semicircular grooves. 2.Горелка по п. отличающа с  тем, что диаметр выходного отверсти  сопла составл ет 0,8-1,2 диаметра цилиндрической выточки диска, а наружный диаметр диска 0,6-1,1 диаметра меньшей ступени цилиндрического расширени .2. The burner according to claim 2, wherein the diameter of the nozzle outlet is 0.8-1.2 times the diameter of the cylindrical undercut of the disk, and the outer diameter of the disk 0.6-1.1 times the diameter of the smaller stage of the cylindrical expansion. Фиг.11 2. 4 12. 4 1 Фаг.2Phage.2
SU874324314A 1987-09-28 1987-09-28 Torch for welding thermoplastic materials SU1482815A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU874324314A SU1482815A1 (en) 1987-09-28 1987-09-28 Torch for welding thermoplastic materials

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Application Number Priority Date Filing Date Title
SU874324314A SU1482815A1 (en) 1987-09-28 1987-09-28 Torch for welding thermoplastic materials

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SU1482815A1 true SU1482815A1 (en) 1989-05-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012119863A1 (en) * 2011-03-04 2012-09-13 Windmöller & Hölscher Kg Process and device for producing bags, the walls of which contain stretched polyolefin material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 927521, кл. В 29 С 65/10, 1978. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012119863A1 (en) * 2011-03-04 2012-09-13 Windmöller & Hölscher Kg Process and device for producing bags, the walls of which contain stretched polyolefin material

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