CS263379B1

CS263379B1 - Preparation for testing of technological solderability by plamert

Info

Publication number: CS263379B1
Application number: CS873096A
Authority: CS
Inventors: Viliam Ing Csc Ruza; Milan Bilsky
Original assignee: Ruza Viliam; Milan Bilsky
Priority date: 1986-10-24
Filing date: 1987-04-30
Publication date: 1989-04-14
Also published as: CS263380B1; CS264713B1; CS309787A1; CS770886A1; CS309687A1

Abstract

Prípravok je určený na zjednotenie fyzikálnych podmienok skúSania technologickej spájkovatelnosti najmS pri různorodých, kombinovaných materiálov s vybranou spákou, alebo tavivom a spákou, v plameni a na definovanie technologických parametrov spájkovaniav praxi. Je základnou pod- mienkou reprodukovatelnosti zavádzanej skúSky. Na stojane je polohovatelne zavěšený ručný plameňový horák, nad ktorým je umiestnené rameno s karuselem, so vzorkami skúSobného základného materiálu s druhým skúšobným dielom a so spájkou, alebo s tavivom a spájkou. Na stojane nad ramenom je umiestnené pomocné rameno s gravitačným přítlačným hrotom, vybaveným výměnným závažím na vyvodenie zvolenej sily přítlaku druhého skúšobného dielu na skúšobný základný materiál. Rameno nosiča, plameňový horák, rameno s karuselom, pomocné rameno s gravitačným přítlačným hrotom a zarážka sú rotačně, výškovo a dialkovo prestavitelné, pričom vzdialenosť hubice a ťažis- ka druhého skúSobného dielu v karuseli na ramene sú od osi stojana rovnaké.The preparation is intended for unification of physical conditions of testing of technological soldering especially for various, combined materials with selected sleeper or flux and sleeper, in flame and for defining technological parameters of soldering and in practice. It is a basic condition for the reproducibility of the introduced test. On the stand, a hand-held flame torch is suspended, above which a carousel arm is placed, with samples of a test base material with a second test piece and a solder, or with a flux and solder. On the stand above the arm there is an auxiliary arm with a gravitational thrust, equipped with a replaceable weight to draw the selected thrust force of the second test piece onto the test base material. The carrier arm, the flame burner, the carousel arm, the auxiliary arm with the gravitational thrust and the stop are adjustable in rotation, height and distance, the distance between the nozzle and the center of gravity of the second test piece in the carousel on the arm being the same from the stand axis.

Description

263379 2263379 2

Vynález sa týká přípravku na skúšanie technologickej spájkovatelnosti plameňom.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flame retardant technological brazing preparation.

Doposial známe přípravky a zariadenia neumožňuji! vykonať reprodukovatelné skúšky spáj-kovatelnosti najma na slinutých a sindrováných materiálech v kombinácii s dalšími druhmimateriálov, napr. slinutý karbid a uhlíková ocel a obdobné. Na tieto skúšky sa obvykle použí-vala nevyhriata podložka, najčastejšie tehla magnezitovej výmurovky metalurgickej pece,alebo elektrickej odporovej pece, alebo napr. len běžná ílová vypálená stavbárska tehla.So far, we do not allow the known devices and devices! perform reproducible brazing tests especially on sintered and sindled materials in combination with other kinds of materials such as cemented carbide and carbon steel and the like. For these tests, an unheated pad, most commonly a brick of a magnesite liner of a metallurgical furnace, or an electric resistance furnace, or, for example, just a conventional clay fired construction brick, was usually used.

Vzorka skúšobného základného materiálu, napr. ocelový plech sa položila na tehlu, ktorábola vo funkcii tepelného izolátora. Na tejto vzorke položená doštička, napr. zo slinutéhokarbidu a skúšobná spájka, alebo tavivo a spájka, boli ohrievané teplom plameňa ručnéhoplameňového horáka, v priamom styku s obtékájúcim plameňom, pričom vzdialenosť hubica - vzorkabola udržovaná v kolísajúcich hodnotách subjektivným vyhodnocováním a změnami priamo skúša-júcim tak, že horák bol unášaný rukou, bez možnosti objektívnej reprodukcie procesu. Nemož-nost přesného kvalifikovaného odporovaného hodnotenia a riadenia priebehu a zastavenia procesuskúšky vo vhodnom okamžiku, ako aj nemožnost přesného merania časov trvania sledovanýchčastí procesu, viedli k široko rozptýleným výsledkom. Za takýchto podmienok nebolo možnéplné využitie vlastností spájky, alebo taviva a spájky a už vóbec nie spájky s vysokým teplot-ným gradientom. Tieto poměry nevyhovovali ani na výskům a vývoj nových progresívnych druhovpřidaných materiálov.A sample of the test base material, e.g., a steel sheet, was laid on a brick which was a heat insulator. A plate, such as sintered carbide and a test solder, or flux and solder, were heated on this sample by the heat of the handheld burner flame, in direct contact with the bypass flame, wherein the nozzle-pattern distance was maintained at varying values by subjective evaluation and changes directly by the investigator so that the burner was carried away by hand, without the possibility of objective reproduction of the process. The impossibility of accurately qualified, contradictory assessment and management of the process and stopping of the test at the appropriate time, as well as the inability to accurately measure the duration of the monitored process components, have led to widely dispersed results. Under these conditions, the properties of solder, or flux and solder, and not at all high temperature gradient solders, could not be fully utilized. These ratios did not meet the requirements and the development of new progressive types of added materials.

Podstata přípravku na ^úšanie technologickej spájkovatelnosti plameňom spočívá v tom,že na stojane, v úchytke na posuvnéj tyči, pripevnenej k ramenu nosiča, s krajnou polohouna zarážke, je upevněný ručný plameňový horák, obrátený výtokom hubice k skúšobnému materiá-lu. Na stojane je súčasne prostredníctvom prestavovacej objímky upevněné rameno s karuselom,na ktorom sú Uložené vzorky různého skúšobného základného materiálu, spolu s druhým skúšob-ným dielom a so spájkou, alebo s tavivom a spákou. Na spoločnom stojane je tiež nad ramenoms karuselom so skúšobnými vzorkami, prostredníctvom prestavovacej objímky, upevněné pomocnérameno s gravitačným přítlačným hrotom a s výměnným závažím, na vyvolanie vhodného přítlakudruhéj skúšobnej vzorky k základnému materiálu, pričom gravitačný přítlačný hrot je uloženývo volné posuvnom vedení a směruje svojou osou kolmo do tažiska druhého skúšobného dielu.The essence of the flame retardant technology is that on the stand, in the tab on the sliding bar attached to the carrier arm, with the stopper, the hand held flame torch is fixed, facing the nozzle to the test material. At the same time, a carousel arm is mounted on the stand by means of an adjusting sleeve, on which samples of different test base material are stored, together with a second test piece and a solder, or with a flux and a sleeve. Also on the common stand is a carousel with test specimens over the shoulders, by means of a displacement sleeve, mounted with a gravitational thrust tip and a replaceable weight, to induce a suitable downstream test specimen to the base material, with the gravitational thrust pin disposed in the free sliding guide and directs its axis vertically to the center of gravity of the second test piece.

Pripravok zaisťuje spĎsobom prestaviteíného upevnenia a uloženia všetkých svojich hlav-ných časti rovnakú vzdialenosť osi hubice horáka a tažiska druhého skúšobného dielu od spo-ločného stojanu. Súčasne disponuje definovanou, stále opakovatelnou polohou a vzdialenostouústia hubice vo vztahu k skúšobnej vzorke, a to prostredníctvom prestavitelnej zarážky.The device provides for the positioning and positioning of all of its main parts in the same manner to the same distance of the torch nozzle axis and the center of gravity of the second test part from the common stand. At the same time, it has a defined, constantly repeatable position and distance of the nozzle part relative to the test sample by means of an adjustable stop.

Hlavné výhody koncepcie a usporiadania jednotlivých častí přípravku na skúšanie technologic-kej spájkovatelnosti plameňom, na vybraných kombinovaných materiáloch s vybranou spájkou,alebo tavivom a spájkou spoSívajú v tom, že pripravok vytvára jednotiace podmienky s dalšímidruhmi skúšok spájkovatelnosti, ako je skúška roztekavosti spájky plameňom a skúška spájko-vatelnosti plameňom vzoriek skúšok šmykovej pevnosti spájkovaných spojov, Pripravok riešiproblém reprodukčnej jednoty fyzikálnych parametrov skúšky, ako sú rovnaké, alebo opakova-telno rovnaké množstvo tepla plameňového horáka podlá času určeného skúškou, konštantnémiesto pósobenia tepla plameňa bez tepelných výkyvov, možnost přesného merania času pósobeniadosiahnutej teploty na skúšobné vzorky včítane spájky, alebo taviva a spájky, možnost přes-ného určenia momentu natavenia spájky a sledovania hodnotenia priebehu roztekania spájkybezprostředným vizuálnym pozorováním a možnost okamžitého zastavenia dodávky tepla do procesuskúšky. Pripravok umožňuje uplatnenie vyšších hodnót parametrov skúšky a presnú reprodukciuskúšky.The main advantages of the design and arrangement of the individual flame retardant components of the preparation, on selected composite materials with selected solder, or flux and solder, are that the formulation creates uniform conditions with other types of solderability tests, such as flame solder leakage test and test. flame brazing sample shear strength test specimens of soldered joints, Preparation of the problem of reproductive unity of physical parameters of the test, such as equal or repeatedly the same amount of heat of the flame burner according to the time determined by the test, constant location of the heat of the flame without heat fluctuations, possibility of accurate measurement of the time temperature on test specimens including solder, or flux and solder, the ability to accurately determine the torque of the solder, and monitor the progress of the solder flow immediately visual observation and the possibility of immediately stopping the heat supply to the process. The preparation allows the application of higher test parameter values and accurate reproduction.

Na výkrese je na obr. 1 naznačený příklad prevedenia koncepcie zostavy súboru viacerýchdruhov prípravkov na spoločnom stojane, za účelom pohotovéjšleho použitia širších skúšokspájkovatelnosti plameňom a na obr. 2 je samotný pripravok na skúšanie technologickej spájko-vatelnosti plameňom zobrazený podrobnejšie.In the drawing, FIG. 1 illustrates an exemplary embodiment of a plurality of plurality of fixture assemblies on a common rack, in order to more rapidly use wider flame resistance tests, and FIG. 2 shows the flame retardant preparation itself.

Pohotovostnú zostavu (obr. 1) pre komplexně skúšky spájkovatelnosti tvoria jednotlivépřípravky - pripravok 28 na skúšanie roztekavosti spájky a taviva plameňom, pripravok 29Emergency assembly (Fig. 1) for complex solderability tests consists of individual preparations - Preparation 28 for testing of solder flux and flux flame, Preparation 29

Claims

No. 3 263379 for flame brazing testing, brazing test fixture 30, brazing test specimens, brazing strength of soldered joints, each with a common heat source 31 in conversion from ore flame torch suspended on a common stand 2 · brazing test fixture A flame burner 8 with a nozzle 10 is fastened to the stop 9 in a bracket on the slide bar T connected to the support arm 2 by a flame (FIG. 2). with a carousel 14 on which samples of the test base material 11 are deposited together with the second test portion 12 and with the brazing 13, or with the flux and solder. An auxiliary arm 2 with a gravitational contact tip 15 and a replaceable weight 17 is also provided on the frame 2 by means of an adjusting sleeve, the post-gripping tine is inserted into the guide 16 and is directed at its axis perpendicularly to the second test part 12. Here, the axis of the nozzle 10 is orbital flame. and the center of gravity of the second test portion 12 in the carousel 14 on the arm 2 from the stand 2 is the same. The flame brazing test on selected combinations of test materials 11 and 12 using solder solder 22 or flux and solder is carried out in a fixture that defines a heat source as an ore flame burner 2 having a stopper assembly which allows the correct position of the nozzle 10 to be set to the test material 11 and 12, with a test bond 21 or with a flux or solder, preferably an instantaneous heat input, add test materials 11 and 12 in the carousel 14 so that the metal-degreased test base material 11 is heated in the concentrated heat of the palm heat from the nozzle 10, and the metal-distilled, degreased second test portion 12 is placed in contact at the center of gravity of the heat sink. The carousel 14 allows good reproducibility of the position and physical conditions of the heating of the test materials. The gravitational tine 15, free sliding in gravity, along with the interchangeable weight 17, is directed perpendicularly to the center of gravity of the second test disk 12, it receives a sample of test base material 11 with a selected force, according to the large-dimensional weight 22 · T e 3e defined gap size between the solder parts , capillary measures for solder inlet and conditions for optimum brazing strength. The distance between the ore flame burner nozzle 10 and the center of gravity distance of the second test piece 12 is the same from the stand 2, the fixture allows visually observation of the process test, its course and determination of the test stopping moment as measured by the runtime control data. The construction of the device according to the invention allows the testing of the technological solderability of identical straight or bent, various dimensional and especially combined materials with selected solder, or flux and solder in uniform physical conditions of the heated flame both in the test and in the manufacturing practice. The invention is applicable to manufacturers of fluxes and solders, in conventional industrial customers, in research and development, in controlling the properties of additive materials. It is also suitable as a training device at schools of all levels. It is of great importance in determining the optimal conditions for soldering combined materials in conventional manufacturing practice. SUBJECT MATERIAL The flame retardant flame retardant test soldering agent is tested by the fact that, on the stand (1), in the slide bar (7) attached to the nosid arm (6), with the limit position on the stop (9) a fixed ore flame burner (8) with a nozzle (10), The firing on the stand (1) is a fixed arm (2) with a carousel (14) to store samples of the test base material and a second test piece with a test solder or flux and a solder, and a support arm (3) with a gravitational thrust pin (15) and a replaceable weight (17) mounted on the stand (1), an additional gravitational thrust pin (15) placed in the guide (16) is directed through its axis to a functional 263379 4 carousel center of gravity ( 14) on the arm (2) is from the stand (1) the same and auxiliary arm (3) with the gravitational pressure tip (15), the hand flame burner (8) and the stop (9) are rotationally, the height and dial rebuilding. 2 drawings