SE203698C1

SE203698C1 -

Info

Publication number: SE203698C1
Authority: SE
Publication date: 1965-01-01

Description

KLASS INTERNATIONELLSVENSK GO1 k42 i:11/0 PATENT- OCH REGISTRERINGSVERKET Ans. 4286/1963 inkom den 18/4 1963 atlagd den 2/8 196 SOCIRTE LORRAINE DE LAMINAGE CONTINU, SA, PARIS, FRANKRIKE San och anordning for matnin• g av temperaturer pa eller i narheten av en varm metallyta Uppfinnure: B Lux och N Perlhefter Prioritet beglird !ran den 19 april 1962 (Schweiz) Foreliggande uppfinning avser ett salt att mata temperaturen ph eller i narheten av en varm metallyta. CLASS INTERNATIONAL SWEDISH GO1 k42 in: 11/0 PATENT AND REGISTRATION AGENCY Ans. 4286/1963 received on 18/4 1963 added on 2/8 196 SOCIRTE LORRAINE DE LAMINAGE CONTINU, SA, PARIS, FRANCE San and device for feeding temperatures on or near a hot metal surface Invention: B Lux and N Perlhefter The present invention relates to a salt for feeding the temperature ph or in the vicinity of a hot metal surface.

Matning av temperaturen pa ytan av varma metailer, t. ex. en stalgOt, utfores vanligen pa tvd skilda satt. Det forsta av dessa satt be-star i att mata stralningen frau ytan hos den varma metallen oeh att bestamma temperaturen med hjalp av vardet pa denna straining. Vid det andra sattet fares ett termoelektriskt element i kontakt med metallytan, varigenom temperaturen kan matas direkt. Feeding the temperature on the surface of hot metals, e.g. a stalgOt, is usually performed in two different ways. The first of these consists in feeding the radiation from the surface of the hot metal and determining the temperature by means of the value of this radiation. In the second method, a thermoelectric element is brought into contact with the metal surface, whereby the temperature can be fed directly.

Nackdelen med dessa satt bestar i att man inte mater temperaturen has metallytan utan has det oxidlager, som finnes pa den. The disadvantage of these methods is that you do not measure the temperature of the metal surface but of the oxide layer present on it.

Nu är, av skilda orsaker, temperaturen hos detta oxidskikt mycket variabel, varfor yttemperaturen has metallen blir mycket osakert bestamd med ledning av detta varde. Av denna orsak är det nOdvandigt, for att erhalla ett exakt matt pa yttemperaturen, att kunna utftira matningen pa sjalva ytan, dvs. under det oxidskikt, som tacker denna. Salunda har man fOrsokt fora ett termoelement i kontakt med metallytan, genom att placera var och en av de tva termoelementtradarna pa var sin metallspets, vilka metallspetsar foras igenom oxidskiktet sa att de komma i kontakt med metallen, som alltsa kommer att ombesorja den elektriska kontakten Indian termoelementets tva delar. Det är tydligt att denna me-tad är anvandbar endast om det galler mycket tunna oxidskikt och dessutom, av tekniska skal, bara vid temperaturer under c:a 800° C, och detta bara vid matningar av kort varaktighet, pa grund av den snabba oxidationen av ytan. Dessutom är den svarligen anvand- Dupl. kl. 42 i: 8/02; 42 i: 11/04 bar for matning av temperaturer i stora metallblock, pa grund av varmeutstralningen frail dessa. Now, for various reasons, the temperature of this oxide layer is very variable, for which reason the surface temperature of the metal is very uncertainly determined with reference to this value. For this reason, in order to obtain an exact mat at the surface temperature, it is necessary to be able to perform the feed on the surface itself, i.e. under the oxide layer, which thanks this. Attempts have been made to place a thermocouple in contact with the metal surface by placing each of the two thermocouple wires on each metal tip, which metal tips are passed through the oxide layer so that they come into contact with the metal, which will thus provide the electrical contact Indian. the two parts of the thermocouple. It is clear that this method is useful only if it applies to very thin oxide layers and also, for technical reasons, only at temperatures below about 800 ° C, and this only at feeds of short duration, due to the rapid oxidation of the surface. In addition, it is responsibly used- Dupl. at 42 i: 8/02; 42 in: 11/04 bar for feeding temperatures in large metal blocks, due to the heat radiation from these.

Sattet enligt uppfinningen eliminerar ovan namnda nackdelar, som aro utmarkande for kanda metoder. Det kannetecknas av att man i metallen, medelst en explosiv laddning, in-for atminstone en projektil innehallande ett termoelektriskt element sa att detta placeras atminstone i niva med metallytan. The method according to the invention eliminates the above-mentioned disadvantages, which are distinctive to known methods. It can be characterized in that in the metal, by means of an explosive charge, at least one projectile containing a thermoelectric element is inserted so that this is placed at least level with the metal surface.

En anordning for utforande av sattet enligt uppfinningen, bestaende av en pistol, innefattande en pipa oeh ett bakstycke, som aro sten forbundna med en mellancylinder, vars lire diameter är storre an pipans for bildning av en inre ansats, ett patronutrymme i bakstycket, ett slagstift bakom detta utrymme for aktivering av en patron, samt en i mellancylindern monterad kolv, anordnad att framdrivas av patronens explosiva laddning mot ansatsen, vilken kolv är utford i ett stycke med en stang, som stracker sig i pipan, kannetecknas darav, att slagstiftet är anordnat att paverkas av en elektromagnetisk anordning, som är monterad pa pistolen och avstandsstyrd, medan stangen i sin ande har ett utrymme fOr mottagning av den bakre delen av projektilen, som innehaller atminstone en av parterna i ett termoelement, varvid pipans och stangens anddelar innehalla vardera en slits, vilka slitsar aro anordnade mitt emot varandra och avsedda att tillsammans 'Agora en passage for termoelementtradarna. A device for carrying out the set according to the invention, consisting of a gun, comprising a barrel and a back piece, which are connected to a middle cylinder, the diameter of which is larger than the barrel for forming an inner shoulder, a cartridge space in the back piece, an impact pin behind this space for activating a cartridge, as well as a piston mounted in the intermediate cylinder, arranged to be propelled by the cartridge's explosive charge against the shoulder, which piston is challenged in one piece with a rod extending in the barrel, may be indicated by the fact that the percussion pin is arranged to be actuated by an electromagnetic device mounted on the gun and remotely controlled, while the rod in its spirit has a space for receiving the rear part of the projectile, which contains at least one of the parts of a thermocouple, the parts of the barrel and the rod each containing a slits, which slits are arranged opposite each other and intended to together 'Agora a passage for the thermocouple traders.

I den medfOljande ritningen visas ett utftiringsexempel pa anordningen enligt uppfinningen. I fig. 1 visas ett langssnitt av anordningen. I fig. 2 visas en forklarande skiss. 2 Anordningen bestar av en slags pistol. Som ses i fig. 1 innefattar den ett bakstycke 1, en pipa 2 saint en med bakstycket stelt forbunden mellancylinder la. I bakstycket 1 finnes ett utrymme 3 for en patron 4, liksom en 18stagbar styrning 5, mot vilken en elektromagnet 8 är anordnad. The accompanying drawing shows an exemplary embodiment of the device according to the invention. Fig. 1 shows a longitudinal section of the device. Fig. 2 shows an explanatory sketch. 2 The device consists of a kind of pistol. As seen in Fig. 1, it comprises a rear piece 1, a barrel 2 saint an intermediate cylinder 1a rigidly connected to the back piece. In the back piece 1 there is a space 3 for a cartridge 4, as well as an 18-pull guide 5, against which an electromagnet 8 is arranged.

En kolv 9, fOrsedd med en stang .9a, är placerad i mellancylindern la och kan rora sig mellan en ansats 2a och mellancylinderns hot-ten. En skyddsbrieka 10, t. ex. av mjukt stal, är placerad mellan kolven 9 och ansatsen 2a. A piston 9, provided with a rod .9a, is placed in the intermediate cylinder 1a and can move between a shoulder 2a and the hoods of the intermediate cylinder. A protective brieka 10, e.g. of mild steel, is placed between the piston 9 and the shoulder 2a.

Anden pa stangen 9a innelfaller ett utrymme 11 for en projektil 12. Som man ser, ar den senare afford i form av en spik med ett forstarkt huvud, som är placerat i utrymmet 11. Projektilen 12 innefattar ett hal 13, i vilket är placerat ett termoelektriskt element 14. Pipan 2 och stangen 9a innefatta var och en, en skara 15 resp. 16, avsedd kir passage av termoelementets tilledningstradar. The spirit of the rod 9a encloses a space 11 for a projectile 12. As can be seen, the latter is afforded in the form of a nail with a reinforced head, which is placed in the space 11. The projectile 12 comprises a hall 13, in which a thermoelectric element 14. The barrel 2 and the rod 9a each comprise a crowd 15 and 15, respectively. 16, intended kir passage of the thermocouple lead wires.

Projektilen 12 är forsedd med tvarghende spar 17 avsedda att Walla den kvar i den varma metallen, nar den inforts (fig. 2). Ett hal 18 är upptaget i mellancylinderns la vagg for att medge utstromning av gas. The projectile 12 is provided with transverse grooves 17 intended to walla it in the hot metal when it is imported (Fig. 2). A slide 18 is received in the cradle of the intermediate cylinder 1a to allow the outflow of gas.

Den ovan beskrivna anordningen fungerar pa foljande satt: Efter att ha placerat projektilen 12 i utrymmet 11 och fort tillbaka kolven 9 till hot-ten av mellancylindern (den position som framgar av ritningen), infor man patronen 4 dess rum 3. For att utf8ra delta Or det nod-siandigt att ta bort magnetkaman 7, med slagstiftet 6 tillsammans med styrningen 5; den senare Iran skruvas ur. Efter att ha infort patronen 4, aterfOr man styrningen. 5 till sin plats, saint infor magnetkarnan 7 i elektromagneten 8 sa. att slagstiftet 6 delvis infores I stymingen 5. Elektromagneten 8 Or forbunden med en likspanningskalla och det termoelektriska elementet 14 Or forbundet med ett instrument for avlasning av den termoelektriska spdnningen, vilken spanningskalla resp. instrument ej Oro visade i figuren. Pistolanordningen, som salunda Or laddad, placeras nu i ett stod yid matstallet, dvs. i en position, i vilken andan pa pipan 2 befinner sig nara eller till och med tatt intill ytan pa den varma metallen, hos vilken man onskar mata temperaturen. Tillforsel av strom till elektromagnetens 8 lindning medfor att karnan 7 attraheras in i spolen varigenom slagstiftet 6 fares mot patronen 4, vilket fororsakar en st8t, som kommer kolven 9 med projektilen 12 att rora sig mot oppningen i pipan 2. Kolven 9 stoppas av ansatsen 2a, medan projektilen 12 fortsatter ph sin vag att tranga in i den varma metallen, vilket Or framstallt i fig. 2. Det Or att marka, att kolvens 9 bana, och langden pa stangen 9a Oro valda sa, att andan pa den senare just uttrader ur pipan 2 cla kolven stoppas. Detta fororsakar ett lampligt tryck pa projektilen vid dess intrangning I metallen. The device described above operates as follows: After placing the projectile 12 in the space 11 and quickly returning the piston 9 to the threat of the intermediate cylinder (the position shown in the drawing), the cartridge 4 is inserted into its compartment 3. To perform delta Is it necessary to remove the magnetic cam 7, with the percussion pin 6 together with the guide 5; the latter Iran is unscrewed. After inserting the cartridge 4, the control is returned. 5 to its place, saint infor the magnetic core 7 in the electromagnet 8 sa. that the percussion pin 6 is partially inserted into the control 5. The electromagnet 8 Or connected to a DC voltage source and the thermoelectric element 14 Or connected to an instrument for relieving the thermoelectric voltage, which voltage head resp. instruments not Concerns shown in the figure. The pistol device, which salunda Or loaded, is now placed in a stood yid the food stall, ie. in a position in which the spirit of the barrel 2 is close to or even taken close to the surface of the hot metal at which it is desired to feed the temperature. Supply of current to the winding of the electromagnet 8 causes the core 7 to be attracted into the coil whereby the percussion pin 6 is moved against the cartridge 4, which causes a shock which the piston 9 with the projectile 12 will move towards the opening in the barrel 2. The piston 9 is stopped by the shoulder 2a , while the projectile 12 continues ph its way to penetrate into the hot metal, which Or is shown in Fig. 2. It Or to mark, that the path of the piston 9, and the length of the rod 9a from the barrel 2 cla the flask is stopped. This causes a light pressure on the projectile as it penetrates the metal.

Efter en mycket kort tid har temperaturen i projektilen, vid det stalle ddr det termoelektriska elementet Or placerat, blivit densamma som i metallen. Denna tid beror pa placeringen av termoelementet i projektilen. Vid, till exempel, en projektil med 5 nun diameter och 24 mm langd, for det fall att termoelementet befinner sig i niva med metallytan, Or denna tid ungefar 20 sek, medan den Or 5 sekunder for det fall att elementet Or placerat tatt in-till spetsen pa projektilen, dvs. en. viss distans in i metallen (fig. 2). After a very short time, the temperature in the projectile, at the stall where the thermoelectric element Or is placed, has become the same as in the metal. This time depends on the placement of the thermocouple in the projectile. In the case of, for example, a projectile with a diameter of 24 mm and a length of 24 mm, in the case that the thermocouple is level with the metal surface, this time is approximately 20 seconds, while it is 5 seconds in the case that the element to the tip of the projectile, ie. one. certain distance into the metal (Fig. 2).

Det Or att marka, att f8r att erhalla en bra intrangningsformaga i metallen, bar fOrhallandet mellan diameter och langd hos proj ektilen ligga radian 1/3 och 1/6. It should be noted that in order to obtain a good penetration shape in the metal, the ratio between diameter and length of the projectile should be radius 1/3 and 1/6.

Av samma skal, bor forhallandet mellan konlangden och den totala langden hos projektilen ligga mellan 1/3 och 1/5. Of the same shell, the ratio between the cone length and the total length of the projectile should be between 1/3 and 1/5.

I det beskrivna exemplet inneholl projektilen ett belt termoelement. Det Or emellertid tydligt att en projektil barn behover innehhlla den ena delen av ett termoelement, varvid en annan projektil kan innehalla den andra delen eller besta av en metall, som Or den lamplig att sjalv utgora den andra termoelementdelen. Denna senare variant Or fordelaktig i det fall att man onskar utfora matningar p0 flera stallen. I sjalva verket behover man da, I vart och ett ay dessa stallen., bara infora en projektil, innehallande ena delen av ett termoelement, vilken del sedan far bilda ett helt element med en gemensam projektil. In the example described, the projectile contained a belt thermocouple. However, it is clear that a projectile child needs to contain one part of a thermocouple, whereby another projectile may contain the other part or consist of a metal, which is suitable for itself to form the other thermocouple part. This latter variant is advantageous in the event that it is desired to carry out feeds in several stables. In fact, in each of these stables, one need only insert a projectile, containing one part of a thermocouple, which part may then form an entire element with a common projectile.

De projektiler, som befinna sig I den varma metallen efter matningen behova inte besvara, eftersom de kunna vara av samma metall, som den varma metallen, sa att de totalt forenas med denna, efter det att den kallnat. The projectiles which are in the hot metal after feeding do not have to answer, because they may be of the same metal as the hot metal, so that they totally unite with it, after it has cooled.

Claims

Patent claim:

Set to feed the temperature on or near a hot metal surface, characterized in that a thermocouple (14) is inserted at least to level. with the surface of the metal with the help of at least one by one. explosive charge propellant (12).

2. Set according to patent claim 1, characterized in that the thermocouple (14) is inserted by means of a single projectile, which contains its hot parts.

3. Set according to patent claim 1, characterized in that the thermocouple is inserted with the aid of two projectiles, each containing its own part of the thermocouple. 3

4. A kit according to claim 1, characterized in that the thermocouple is inserted by means of two projectiles, one of the projectiles containing one part and the other projectile itself forming the other part of the thermocouple.

5. sat according to patent claims 1-3, characterized in that the projectile or each projectile consists of the same metal as the hot metal.

Device for carrying out the set according to claim 1-5, consisting of a gun, comprising a barrel (2) and a back piece (1), which are rigidly connected to an intermediate cylinder, the inner diameter of which is larger than the pipe for formation. of an inner shoulder (2a), a cartridge compartment (3) in the rear piece, a percussion pin (6) behind this compartment for activating a cartridge (4), and a piston (9) mounted in the intermediate cylinder, arranged to be propelled by the explosive charge of the cartridge against the shoulder (2a), which piston is made in one piece with a rod (9a) extending in the barrel, can be drawn & ray, that the percussion pin (6) is arranged to be actuated by an electromagnetic device (8), which is mounted on the pistol and remote controlled, while the rod (9a) in its spirit has a space (11) for receiving the rear part of the projectile (12), which contains at least one of the parts of a thermocouple, the barrel (2) and the rod (9a) parts each contain a slot (15, 16), which slots are arranged in the middle. against each other and intended to together form a passage Air thermocouple trades (14).

Device according to patent claim 6, characterized in that the intermediate cylinder between its spirits has a side opening (18) for the release of gases.

Device according to claim 6 or 7, characterized in that the electromagnetic device comprises a movable core (7) which is rigidly connected to the percussion pin (6) and arranged to actuate it so as to cause ejection of a cartridge in the name of the space when the electromagnetic device is activated.

Device according to claims 6-8, characterized in that the projectile (12) intended for insertion into a hot metal consists of a nail-shaped element, which in its rear part has a head of stone cross-section, which is intended to be inserted in the space in the winding on the piston rod and is provided with a hall (13) which extends axially in the element from its baking and contains at least one of the parts of a thermocouple.

10. Device according to claims 6-9, characterized in that the middle portion of the projectile intended for insertion into the hot metal is provided with at least one peripheral groove (17).

11. Device according to patent claims 6-10, characterized in that the ratio between the diameter and the length of the projectile is between 1: 3 and 1: 6.

Device according to patent claims 6-11, characterized in that the ratio between the length of the front conical part of the projectile and the total length of the projectile is between 1: 3 and 1: 5.

Device according to the patent claims. 6- 12, characterized in that a protective washer (10) is arranged between the piston and the inner shoulder.

Device according to any one of patent claims 6-13, characterized in that the end surface of the piston rod is considerably larger than the surface occupied by the space (11) in said end surface. Request publications: U.S. Patent Nos. 2,703,495, 2,973,397.