SU946835A1

SU946835A1 - Electric solderer

Info

Publication number: SU946835A1
Application number: SU803211568A
Authority: SU
Inventors: Валентин Петрович Коротков
Original assignee: за витель В. П. Короткой
Priority date: 1980-12-02
Filing date: 1980-12-02
Publication date: 1982-07-30

Description

(54) ЭЛЕКТРОПАЯЛЬНИК(54) ELECTRIC WATER

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Изобретение относитс к пайке и может быть использовано в приборостроении дл осуществлени процесса пайки в труднодоступных удаленных местах с обеспечением стабильности температуры в рабочей зоне.The invention relates to soldering and can be used in instrumentation for carrying out the soldering process in remote locations with ensuring the stability of the temperature in the working area.

Известен электропа льник, содержащий па льный стержень в виде герметичной, трубки, заполненной жидким теплоносителем , и электронагреватель 1.Known electric flax containing a steam rod in the form of a sealed tube filled with a heat-transfer fluid, and an electric heater 1.

В этом электропа льнике теплоноситель выполн ет роль термоаккумул тора и в процессе пайки не циркулирует и не измен ет своего агрегатного состо ни .In this electric furnace, the coolant plays the role of a thermal accumulator and does not circulate during the soldering process and does not change its state of aggregation.

Известен также электропа льник, содержащий па льный стержень, выполненный в виде герметичной трубки, на внутренней поверхности которой размещен пропитанный легкоиспар ющимс жидким теплоносителем капилл рно-пористый слой, образующий паровой канал транспортировки газообразной фазы теплоносител , и нагреватель с источником питани .Also known is an electric flax containing a solder rod, made in the form of a sealed tube, on the inner surface of which a capillary-porous layer soaked with easily evaporating heat-transfer fluid is placed, forming a vapor channel for transporting the gaseous phase of the heat-transfer fluid, and a heater with a power source.

В известном электропа льнике благодар непрерывной циркул ции теплоносител с изменением его агрегатного состо ни достигаетс больша дальность теплопередачи и обеспечиваетс процесс пайки в труднодоступных удаленных местах 2. Однако известный электропа льник не обеспечивает качественной пайки некоторых соединений из-за недостаточно стабильной температуры в рабочей зоне, так как сверхтеплопроводный па льный стержень обладает малой тепловой инерционностью и передает все колебани источника питани в рабочую зону.In the known electric furnace, due to the continuous circulation of the coolant with a change in its state of aggregation, a large heat transfer range is achieved and the process of soldering in remote remote locations 2 is provided. However, the known electric furnace does not provide high-quality soldering of some connections, so as a super thermal conducting solder rod, it has a low thermal inertia and transmits all oscillations of the power source to the work zone.

,QЦель изобретени - повыщение качестваQ QoL invention - quality enhancement

процесса пайки за счет обеспечени стабилизации температуры в рабочей зоне.soldering process by ensuring temperature stabilization in the working area.

Указанна цель достигаетс тем, что в электропа льнике, содержащем па льный стержень, выполненный в виде герметичнойThis goal is achieved by the fact that in an electric flax containing a pale rod, made in the form of a sealed

Claims

15, on the inner surface of which there is a capillary-porous layer impregnated with an easily evaporating heat-transfer fluid, forming a vapor channel for transporting the gaseous phase of the heat-transfer fluid and a heater with a power source, the heater is designed as an evacuated chamber with an outer capillary-porous layer. m, equipped with a high-voltage source and a bellows with the movement of electrodes attached at its ends, made of tensor-resistant material with a large coefficient entom thermionic emission, mounted in parallel walls of a vacuum chamber and connected to the negative pole of high voltage source and to a power supply, wherein the inner cavity of the bellows is connected with the steam duct sealed tube and the wall of an evacuated chamber connected to the positive pole of the high voltage. The drawing shows the electric flax, a longitudinal section. The electric flax contains a steam rod 1 in the form of a sealed tube 2, the capillary-porous layer 5 forming the vapor channel 6 for conveying the gaseous phase of the heat carrier 7, and the electric heater 8 are placed on the inner surface 3 of which is formed by the vapor-evaporated liquid heat carrier 4. soldering due to the stabilization of the temperature in the working area, the electric heater 8 is implemented in the form of a vacuum tube 9 of the vacuumized chamber 9 placed in the steam channel 6 with an external capillary tube 10, connected to the capillary-porous layer 5 of the sealed tube 2, while the evacuated chamber 9 is provided with its walls 11 electrodes connected to the positive pole 12 of the high voltage source 13 and made of a strain-resistant material with a large thermoelectronic coefficient emission by electrodes 14 connected to the negative pole 15 of the same source 13 and their heating source 16, oriented parallel to the walls 11 of the evacuated chamber 9 and movably attached by their own Tsami 17 and 18 to the ends of the bellows 19, the inner cavity 20 of which is connected to the steam channel 6 sealed tubes

2. Electric flax works as follows. When the heating source 16 is turned on, the electrodes 14 flow through the electrodes 14, they are heated to a high temperature and due to the high value of the coefficient of thermal emission of the material from which they are made. emit electrons from their surface. After switching on the high voltage source 13 between the electrodes 11 and 14, a non-uniform electrostatic field arises, which is accelerating for the thermoelectrons of the electrodes 14. The thermoelectrons of the electrodes 14 rush to the electrodes 11 at a greater speed, and, releasing kinetic energy, significantly increase their temperature, as a result which the easily evaporating heat-transfer fluid 4, which permeates the capillary-porous layer 10 of the evacuated chamber 9, boils, passes into the gaseous phase 7, is transported through the vapor channel 6 to the working The zone gives heat to it, condenses and goes through capillary-porous layers 5 and 10 to electrodes 11. The vacuum in chamber 9 provides a greater free path for thermoelectrons and durability of the thermal emission of electrode 14. As the temperature in the working area changes, for example, its increase , the pressure in the vapor channel 6 increases, and the bellows expands. The end of the bellows 19 is connected to its base by means of flat arcuate springs, on top of which, electrodes 14 are installed with the possibility of mutual sliding with the tension exerted by the cylindrical springs in the power base, and the axial load on the electrodes 14 decreases and thanks to strain-resistive the properties of the material from which they are made, their resistance also decreases, the temperature decreases, the flux density of thermoelectrons bombarding the electrodes 11 decreases, as a result of which The process of vaporization in the hermetic tube 6 is weakened and the temperature in the working zone is lowered to the required level. When the temperature in the working area decreases, the regulation processes go in the opposite direction. In electric flaws, the low inertia of heat transfer agrees well with the low-inertia electron heating, which allows a high degree of temperature stabilization in the working area to be achieved. Claims of the invention: Electroplastic containing a saline rod, made in the form of a sealed tube, on the inner surface of which a capillary-porous layer is added that is impregnated with a lightly evaporating heat-transfer fluid and forms a vapor channel for transporting the gaseous phase of the heat-transfer fluid , in order to improve the quality of soldering due to the stabilization of the temperature in the working area, the heater is made in the form of a vacuum chamber placed in the steam channel An ill-porous layer, equipped with a high-voltage source and a bellows with electrodes movably mounted on its ends, made of a strain-resistive material with a large coefficient of thermal resistance material with a large coefficient of thermal emission;