CS243756B1 - Honey for refrigeration pipes and its production - Google Patents

Honey for refrigeration pipes and its production Download PDF

Info

Publication number
CS243756B1
CS243756B1 CS335682A CS335682A CS243756B1 CS 243756 B1 CS243756 B1 CS 243756B1 CS 335682 A CS335682 A CS 335682A CS 335682 A CS335682 A CS 335682A CS 243756 B1 CS243756 B1 CS 243756B1
Authority
CS
Czechoslovakia
Prior art keywords
phosphorus
weight
copper
medium
alloying
Prior art date
Application number
CS335682A
Other languages
Czech (cs)
Slovak (sk)
Inventor
Jolana Sklenarova
Milan Durica
Original Assignee
Jolana Sklenarova
Milan Durica
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 Jolana Sklenarova, Milan Durica filed Critical Jolana Sklenarova
Priority to CS335682A priority Critical patent/CS243756B1/en
Priority to CS858065A priority patent/CS256724B1/en
Publication of CS243756B1 publication Critical patent/CS243756B1/en

Links

Landscapes

  • Metal Extraction Processes (AREA)
  • Lubricants (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Učelom riešenia ]e zabránenie vzniku interkryštalických porúch pri ohřeve redukčnej atmosféře a zabezpečenie antioxidačnej odolnosti médi pri žíhaní v oxidač­ ně] atmosféře. Uvedeného účelu sa dosiahne tým, že meď sa leguje fosforom na množ­ stvo 0,015 až 0,040 % hmotnosti. Legovanie taveniny médi sa vykonává až po jej dezoxidácii dřeveným uhlím.The purpose of the solution is to prevent the formation of intercrystalline defects during heating in a reducing atmosphere and to ensure the antioxidant resistance of copper during annealing in an oxidizing atmosphere. The stated purpose is achieved by alloying copper with phosphorus in an amount of 0.015 to 0.040% by weight. Alloying of the copper melt is carried out only after its deoxidation with charcoal.

Description

Vynález sa týká médi pre chladiarenské rúrky a sposobu jej výroby. Súčasne vyrábaná meď obsahujúci kyslík nie je použitelná v procese technologického spracovania, tj. oxidačno-redukčného žíhania, ktoré chladiarenský priemysel používá. Nevhodnost tejto médi pre oxidačno-redukčné žíhanie (ohřev) spočívá v tom, že pri žíhaní (ohřeve) v redukčnej atmosféře obsahujúcej vodík, dochádza k difúzii atomárneho vodíka do médi, vzniká vodná para, ktorá v médi nie je rozpustná ani schopná difúzie, a spĎsobuje interkryštalické porušenie a jej netesnosť, ktorá pre výrobu chladiarenského priemyslu je vyžadovaná. Ako dezoxidačný prvok sa využíval fosfor.The invention relates to a refrigerant tube medium and to a process for its manufacture. At the same time, the oxygen-containing copper produced is not applicable in the process of technological processing, i.e. oxidation-reduction annealing, which is used by the refrigeration industry. The unsuitability of this medium for redox annealing (heating) consists in the diffusion of atomic hydrogen into the medium in the annealing (hydrogen) reducing atmosphere, resulting in water vapor which is neither soluble nor diffusible in the medium; it causes intercrystalline failure and its leakage, which is required for the refrigeration industry. Phosphorus was used as the deoxidizing element.

Uvedené nedostatky odstraňuje meď pre chladiarenské rúrky, ktorá pozostáva v % hmotnosti minimálně z 99,9 °/o médi a z fosforu, pričom obsah primiešaním je stopový až do 0,001 % bizmutu, 0,001 % síry, 0,002 % niklu, 0,002 % antimonu, 0,002 % arzenu, 0,002 % cínu, 0,005 % olova, 0,005 % železa a 0,008 % zinku podfa vynálezu, ktorého podstata spočívá v tom, že je legovaná fos- forom na množstvo 0,015 až 0,040 % hmotnosti. Ďalej podstata vynálezu spočívá v tom, že legovanie taveniny médi fosforom sa vykonává až po jej dezoxidácii dřeveným chlím. Výhody médi podfa vynálezu sú v tom, že neobsahuje kyslík, čo sposobuje jej legovanie fosforom a tým pri jej ohřeve v redukčnej atmosféře nedochádza k interkryštalickému porušeniu v dosledku vzniku vodnej páry. Zároveň pri žíhaní v oxidačnej atmosféře zaručený obsah fosforu v medl zabezpečuje antioxidačnú odolnost takejto médi. Příklad chemického zloženia médi podfa vynálezu v % hmotnosti: je 99,2 % médi, 0,037 % fosforu, stopy až 0,0001 % bizmutu, 0,0001 % olova, 0,0001 % mangánu, 0,001 °/o cínu, 0,002 % niklu, 0,003 % železa, 0,008 % zinku, 0,001 % arzénu a 0,002 % antimonu. Dezoxidácia taveniny médi sa uskutočnila suchým dřeveným uhlím v taviacej peci po dobu 25 minút. Legovanie fosforom sa uskutočnilo formou predzliatiny CuPlO v liacej jednotke.The above drawbacks are eliminated by copper pipes for refrigerant pipes, which consist of at least 99.9% by weight of the medium and phosphorus, with a trace content of up to 0.001% bismuth, 0.001% sulfur, 0.002% nickel, 0.002% antimony, 0.002% 0.005% lead, 0.005% iron and 0.008% zinc according to the invention, characterized in that it is alloyed with phosphate to 0.015 to 0.040% by weight. Furthermore, the invention is based on the fact that the alloying of the melt with phosphorus is carried out only after it has been deoxidized with wood chlorine. The advantages of the medium according to the invention are that it does not contain oxygen, which makes it alloyed with phosphorus and thus does not intercrystallize when heated in a reducing atmosphere due to the formation of water vapor. At the same time, the phosphorus content of medl, guaranteed in the oxidizing atmosphere, ensures the antioxidant resistance of such medium. Example of the chemical composition of the medium of the invention in% by weight: is 99.2% medium, 0.037% phosphorus, traces up to 0.0001% bismuth, 0.0001% lead, 0.0001% manganese, 0.001% tin, 0.002% nickel , 0.003% iron, 0.008% zinc, 0.001% arsenic and 0.002% antimony. The melt oxidation of the melt was carried out with dry wood charcoal in a melting furnace for 25 minutes. Phosphorus alloying was performed in the form of a CuP10 alloy in the casting unit.

Claims (2)

PREDMETSUBJECT 1. Meď pre chladiarenské rúrky, ktorá pozostáva v % hmotnosti minimálně z 99,9 % hmotnostného médi a z fosforu, pričom obsah primiešaním je stopový až do 0,001 % bizmutu, 0,001 % síry, 0,002 % niklu, 0,002 percent antimonu, 0,002 % arzénu, 0,002 % cínu, 0,005 % olova, 0,005 % železa a 0,0081. Copper for refrigeration tubes consisting of at least 99,9% by weight of medium and phosphorus by weight, with admixture trace amounts up to 0,001% bismuth, 0,001% sulfur, 0,002% nickel, 0,002% antimony, 0,002% arsenic, 0.002% tin, 0.005% lead, 0.005% iron and 0.008% VYNÁLEZU percent zinku, vyznačená tým, že je legovaná fosforom na množstvo 0,015 až 0,040 °/o hmotnosti.OF THE INVENTION is a percentage of zinc, characterized in that it is alloyed with phosphorus to an amount of 0.015 to 0.040% by weight. 2. Sposob výroby médi podfa bodu 1 vyznačený tým, že legovanie taveniny médi fosforom sa vykonává až po jej dezoxldáci dřeveným uhlím.2. Method according to claim 1, characterized in that the alloying of the melt with phosphorous media is carried out after its deoxidation with charcoal.
CS335682A 1982-05-10 1982-05-10 Honey for refrigeration pipes and its production CS243756B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CS335682A CS243756B1 (en) 1982-05-10 1982-05-10 Honey for refrigeration pipes and its production
CS858065A CS256724B1 (en) 1982-05-10 1985-11-08 A method of producing copper pipes for refrigeration purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS335682A CS243756B1 (en) 1982-05-10 1982-05-10 Honey for refrigeration pipes and its production

Publications (1)

Publication Number Publication Date
CS243756B1 true CS243756B1 (en) 1986-06-12

Family

ID=5373352

Family Applications (2)

Application Number Title Priority Date Filing Date
CS335682A CS243756B1 (en) 1982-05-10 1982-05-10 Honey for refrigeration pipes and its production
CS858065A CS256724B1 (en) 1982-05-10 1985-11-08 A method of producing copper pipes for refrigeration purposes

Family Applications After (1)

Application Number Title Priority Date Filing Date
CS858065A CS256724B1 (en) 1982-05-10 1985-11-08 A method of producing copper pipes for refrigeration purposes

Country Status (1)

Country Link
CS (2) CS243756B1 (en)

Also Published As

Publication number Publication date
CS806585A1 (en) 1987-09-17
CS256724B1 (en) 1988-04-15

Similar Documents

Publication Publication Date Title
CN104593618B (en) Height leads ultra micro alloy regeneration copper bar and method of refining thereof
CN101439444B (en) Low tin-zinc base leadless metal spraying solder
US2183592A (en) Electrical conductor
CN104439751A (en) Novel low-melting-point lead-free solder
CS243756B1 (en) Honey for refrigeration pipes and its production
US3443934A (en) Steel alloys resistant to sulfuric acid and containing small quantity of alloying elements of copper,chromium,and tin or antimony
JP4491713B2 (en) Copper brazing method for brass parts
CN100528457C (en) Lead-free solder for soft soldering
JP2008255380A (en) Corrosion resistant copper alloy tube
JPS5823452B2 (en) Softening resistant copper alloy
CN1006046B (en) Brazing material and flux for air heat exchanger
US3976477A (en) High conductivity high temperature copper alloy
DE69107116T2 (en) Double wall pipe not subject to corrosion and process for its manufacture.
CN100352596C (en) Lead-free soft brazing alloy containing mixed rare earth and production thereof
CN100413633C (en) A kind of oxidation-resistant tin-lead alloy solder
CN108866364B (en) Method for adding easily-oxidizable elements into Sn-based brazing filler metal
US2073020A (en) Method of improving the physical and mechanical properties of alloys
US3143788A (en) Columbium addition agent
CN110527860B (en) A kind of waste purple miscellaneous copper refining agent and its preparation method and application
SU636063A1 (en) Method of preparing molten manganese fluxes
SU893478A1 (en) Welding wire composition
CN87100613B (en) Brazing flux for the production of double-layer coiled pipe
JPS6053089B2 (en) Manufacturing method for highly conductive copper castings
US1545705A (en) Alloy and method of making and casting same
JPS5596664A (en) Copper alloy for lead frame of semiconductor element