CS232058B1 - Forming of meallurgy coated layer - Google Patents
Forming of meallurgy coated layer Download PDFInfo
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- CS232058B1 CS232058B1 CS83187A CS18783A CS232058B1 CS 232058 B1 CS232058 B1 CS 232058B1 CS 83187 A CS83187 A CS 83187A CS 18783 A CS18783 A CS 18783A CS 232058 B1 CS232058 B1 CS 232058B1
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- Prior art keywords
- layer
- forming
- oxide
- pins
- weight
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- 238000000034 method Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- DJOYTAUERRJRAT-UHFFFAOYSA-N 2-(n-methyl-4-nitroanilino)acetonitrile Chemical compound N#CCN(C)C1=CC=C([N+]([O-])=O)C=C1 DJOYTAUERRJRAT-UHFFFAOYSA-N 0.000 claims 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 1
- 230000005495 cold plasma Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 19
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
Description
Vynález rieši sposob vytvárania vrstvy na čapoch a podobných strojných dielcoch s vysokou odolnosťou proti pósobeniu dynamického zaťaženia a proti opotrebeniu.The invention solves the method of forming a layer on pins and similar machine parts with high resistance to dynamic load and wear.
řri prevádzke korčekových bágrov a podobných zariadení dochádza v dósledku vysokého statického a dynamického zaťaženia v® vodnora aleb® inom prostředí a pri abrazívnom pósobení piesku k značnému opotrebeniu čapov, ktoré představuje úbytok až 10, připadne i viac mm, na poloměre válcovéj plochy čapu, alebo podobných dielcov; čapy korčekových bágrov sa vyrábajú z legovaných ocelí. Ich ©potrebenie je tak velké, že Čapy třeba po 5 až 8 mesiacoch vymieňať. Tieto sa v In the operation of bucket dredges and similar equipment, due to high static and dynamic loads in the water or other environment and the abrasive action of sand, there is considerable wear of the pins, which represents a loss of up to 10 or more mm over the radius of the cylindrical surface. or similar parts; bucket dowel pins are made of alloy steel. Their need is so large that the pins need to be replaced after 5 to 8 months. These are in
vymienajú za nové, alebo za renovované. V súčasnosti sa tlete čapy renovujú ručným oblúkovým navářením, obalenými elektrodami, pričom prvá elektroda sa používá ako podkladová a druhá elektroda ako krycia. ®apy sa navárajú pozdížnymi vrstvami na opotřebovaný povrch, pričom sú volné položené na stole a zvárač si ich sám podl’a potřeby pootáča. Po navaření sa čapy opracúvajú sústružením na příslušný priemer. Z dóvodu lahšej montáže sú opracované na menší priemer asi o 1 mm. Tento doterajší spósob je velmi závislý od dispozície zváračov, je zdíhavý a náročný na kvalifikáciu pracovných sil. Často z dóvodu porušenia správného technologického postupu alebo použitia nevhodných elektrod dochádza k vytvoreniu nekvalitnej vrstvy, čo má Íalší negativny vplyv na kvalitu renoVačnéhc procesu, a tým aj na životnost čapov a podobných dielcov.exchanged for new or refurbished. Currently, the studs are refurbished by manual arc welding, coated electrodes, the first electrode being used as the underlying electrode and the second electrode as the cover electrode. The studs are welded with longitudinal layers to the worn surface while being loosely laid on the table and the welder turns them as needed. After welding, the pins are machined by turning to the appropriate diameter. For easier assembly, they are machined to a smaller diameter of about 1 mm. T his current method is very dependent on the disposition of welders is zdíhavý and challenging the qualifications of the workforce. Often, due to a violation of the correct technological procedure or the use of unsuitable electrodes, a poor quality layer is formed, which has a further negative effect on the quality of the refining process and thus on the service life of the pins and the like.
vin
Vyššie uvedené nedostatky sa odstránia sposobom vytvárania metalurgicky nanášanej vrstvy materiálu s vysokou odolnos- 2 232 058 ťou voči dynamickému zatazeniu a opotrebeniu podlá vynálezu, ktorého podstata spočívá v tom, že na strojnicky diel, například čap, sa najprv nanesie v studenom stave plazmovým oblúkora oxidická vrstva kysličníka hlinitého, kysličníka horečnatého, kysličníka vápenatého, alebo kremičitanu zirkonatého o hrúbke 0,05 až 0,2 mm· Potom sa strojnicky diel indukčně ohřeje na teplotu 400 až 600 °C a nakoniec na jeho povrch sa metalurgicky nanesie vrstva materiálu s vysokou odolnosťou voči dynamickému zaťaženia a opotrebeniu·The above-mentioned drawbacks are eliminated by the method of forming a metallurgically deposited layer of a material with a high resistance to dynamic loading and wear according to the invention, which is based on the first application of a plasma arc arc in the cold state of a plasma arc. layer of alumina, magnesium oxide, calcium oxide, or zirconium silicate 0.05 to 0.2 mm thick · Then the mechanical part is inductively heated to a temperature of 400 to 600 ° C and finally a high-strength material layer is metallurgically applied to its surface. against dynamic loads and wear ·
Sposobom podl’a vynálezu sa dosiahne povrch takej kvality, že ho netřeba mechanicky opracovávat. Odstránia sa tak náročné a drahé operácie sústruženia a brúsenia. ^ri tomto postupe sa dosiahne úspora nanášeného materiálu a elektrickéj energie a zvýši sa životnosť čapov a podobných dielcov takto upravených· Vytváranie vrstvy možno usporiadať do linky, čím sa dosiahne vysokoproduktívny, rýchly a kvalitný proces pri vylúčení subjektivných fakt©rov, pri zvýšení životnosti čapu a pri zvýšení jeho odolnosti proti opotrebeniu v dosledku použit ia nanášaného materiálu optimálneho zloženia, nezávislého od sortimentu přídavných zváracích drotov alebo elektrod· Účel medzivrstvy spočívá v tom, že bude chrániť povrch základného materiálu před oxidáciou pri ohřeve vo vzdušnéj atmosféře, a celý proces bude možné potom vykonať v© vzdušnéj atmosféře. Oxidická vrstva, ktorá by sa na čapě vytvořila v priebehu ohřevu, reagovala by s taveninou po naliatí, takže tá by začala prudko vrieť a vytvořila by sa nekvalitná pórovitá vrstva · Ďalej, medzivrstva zabráni nepriaznivému účinku roztaveného naliateho legovaného kovu na povrch základného materiálu dielca z dóvodu vzniku nežiadúcej difúzie uhlíka, chrómu, niklu a titanu alebo premiešaním vysokolegovanej ocele alebo zliatiny,například typu Hardfieldova ocel, s nízkolegovaným alebo nízkouhlíkovým húževhatým ocelovým jadrom, a tým zabráni případnému vzniku mikrotrhlín v tejto přechodové tepelne ovplyvnenej zóně v dosledku vzniku heterogénnych štruktúrnych častíc s velmi rozdielnou objemovou rozťažnosťou·According to the method of the invention, a surface of such quality is achieved that it does not need to be machined mechanically. This eliminates the demanding and expensive turning and grinding operations. ^ ri this process is achieved by saving the coating material and electricity and increase the life of pins and similar parts so treated · In UILDING layers can be arranged in line, thereby achieving highly productive, fast and high quality process to the exclusion of subjective fact © ROV at increased durability The purpose of the interlayer is to protect the surface of the base material from oxidation when heated in an air atmosphere, and the whole process will be can then be performed in a © air atmosphere. The oxide layer, which would form on the pivot during heating, would react with the melt after pouring, so that it would start to boil violently and produce a poor porous layer. Furthermore, the interlayer prevents the molten poured alloyed metal from adversely affecting the base material surface. causing unwanted diffusion of carbon, chromium, nickel and titanium, or by mixing high-alloy steel or an alloy such as Hardfield steel with a low-alloy or low-carbon toughened steel core, thereby preventing the possible formation of micro-cracks in this transition thermally affected zone resulting in heterogeneous particle structures very different volume expansion ·
Na připoj enom výkrese je znázorněné zariadenie na vykoná** 3 **The attached drawing shows a device for performing ** 3 **
232 058 nie sposobu predohrevu čapu v indukčnej peci s taviacim téglikom v recipiente·232 058 do not preheat the pin in an induction furnace with melting crucible in the recipient ·
Středná časť čapu z nelegovanej alebo menej legovanéj, ale húževnatej ocele, zmenšená o hrubku 4 až 15 nm oproti požadovanému priemeru, s plazmové nastriekanou vrstvou kysličníka křemičitého, kysličníka hlinitého, kysličníka horečnatého, kysličníka vápenatého, alebo kremičitanu zirkonatého sa indukčně, například vysokofrekvenčním ohřevem, velmi rýchl© předehřeje na teplotu od 400 do 600 °C· S plazmové nastriekanou vrstvou 2 kysličníka křemičitého, kysličníka hlinitého, kysličníka horečnatého, kysličníka vápenatého, alebo kremičitanu zirkonatého, podlá připojeného výkresu, sa umiesti vo formě 2 válcového tvaru s rozmermi zodpovedajúcimi konečným rozměrem čapu. Přitom forma je vložená v indukčnej vysokofrekvenčnej cievke £ a čap 1 na miestach, kde sa nánáša vrstva, sa ohřáni šamotovým alebo iným jádrem 2· Materiál na vytvorenie oteruvzdornej vrstvy požadovaného chemického zloženia sa přetaví indukčným alebo odporovým ohřevem v tegliku 6 s uzáverom 8 zhotoveným podlá čs.AO 198 641. Na pripojenom výkrese je materiál roztavený v tégliku 2 strednofrekvenčnou cievkou 2· Roztavený materiál sa naleje cez vypúšťací otvor 11 do pripravenej formy 2· Táto sa připraví tak, že medzi jej vnútornou stěnou a vonkajším povrchom čapu sa vytvoří medzera, v ktorej naliaty materiál tak vytvoří ©teruvzdornú vrstvu požadovanej kvality· Po naliatí a pomalom vychladnutí sa čap 1 z formy 2 vyberie· Pri naváraní špeciálnych materiálov vyžadujúcich odlievanie v ochrannej atmosféře alebo vo vákuu sa zariadenie na vytváranie vrstvy na čapoch a podobných strojných dielcoch vloží do recipientu 10 s otvorem 3 pre připojenie odsávacieho zariadenia a uzávěr 8 sa vybaví vakuovou prechodkou 12.The central part of a peg made of unalloyed or less alloyed but tough steel, reduced by a thickness of 4 to 15 nm over the required diameter, with a plasma sprayed layer of silica, alumina, magnesium oxide, calcium oxide or zirconium silicate with induction, for example very fast preheat to 400 to 600 ° C · With a plasma spray layer of 2 silica, alumina, magnesium oxide, calcium oxide, or zirconium silicate, according to the attached drawing, they are placed in a 2 cylindrical shape with dimensions corresponding to the final dimension pin. The mold is inserted in the inductive high-frequency coil 6 and the pin 1 at the places where the layer is deposited is heated by fireclay or other core 2. The material for forming the abrasion-resistant layer of the desired chemical composition is melted by induction or resistance heating. In the attached drawing, the material is melted in the crucible 2 by a medium-frequency coil 2. The molten material is poured through the discharge opening 11 into the prepared mold 2. This is prepared by creating a gap between its inner wall and the outer surface of the pin. · After pouring and slowly cooling, the pin 1 is removed from the mold 2 · When welding special materials requiring casting in a protective atmosphere or vacuum, the layer forming device on the pins and similar machine parts is inserted into recipient at 10 with an aperture 3 for connecting the suction device and the closure 8 is provided with a vacuum adapter 12.
SpSsob vytvárania vrstvy podlá vynálezu bol vyskúšaný pri výrobě nových a renovácii opotřebovaných čapov korčekových bagrov © priemere 60 mm a o dížke 215 mm. Na čapě z nelegovanej ocele bola v prvom případe plazmovým oblúkom nanesná medzivrstva z kysličníka hlinitého a na ňu bola metalurgickým sposobom naliata vrstva z®' zliatiny v chemickom zložení 1,2 % hmotnost232 058 *· /J. «Μ ných uhlíka, 13 % hmotnostných manganu, 1 % hmotnostně chrómu a zbytek tvořený železom, ktorá bola natavená indukčným spůsobom na vzduchu.The method of forming a layer according to the invention has been tried in the manufacture of new and worn out bucket dredger pins with a diameter of 60 mm and a length of 215 mm. In the first case, an aluminum oxide intermediate layer was deposited on the non-alloy steel pivot and a 1.2% by weight alloy alloy coating in a chemical composition of 1.2% by weight was added to it by metallurgical methods. % Of carbon, 13% by weight of manganese, 1% by weight of chromium, and the remainder consisting of iron melted by induction in air.
V druhom případe, bola plazmovým oblúkom nanesená medziv vrstva kysličníka křemičitého a na nu bola metalurgickým sposobom naliata vrstva so zliatiny o chemickom zložení 0,102 % hmotnostných uhlíka, 6,46 % hmotnostných mangánu, 0,37 % hmotnostných kremíka, 0,029 % fosforu, 0,013 % hmotnostných síry, 18 % hmotnostných chrómu, 10,82 % hmotnostných niklu, 0,19 % hmotnostných titánu a zbytok tvořený železom, sposobom ako v prvom případe·In the second case, a layer of silicon dioxide was applied through the plasma arc and an alloy layer with a chemical composition of 0.102% by weight of carbon, 6.46% by weight of manganese, 0.37% by weight of silicon, 0.029% by weight of phosphorus, 0.013% was poured onto it. % by weight of sulfur, 18% by weight of chromium, 10.82% by weight of nickel, 0.19% by weight of titanium and the remainder consisting of iron, in the same way as in the first case ·
Metalurgický sposob vytvárania vrstvy so zvláštnymi vlast nosťami je vhodný na výrobu nových alebo renováciu opotřebovaných rotačných súčiastok, připadne súčiastok iných tvarov. ^ri renovácii před nanášením vrstvy sa súčiastka očistí od oxidov ošleháním hrubými ocelovými brokmi, čap^rí padne nerovnoměrně opotrebovanou plochou bol menší o 4 až 10 mm oproti póvodnému alebo požadovanému rozměru.The metallurgical method of forming a layer with special properties is suitable for the production of new or refurbished rotating parts or parts of other shapes. When refurbished prior to coating, the workpiece is cleaned of oxides by blasting with coarse steel shot pellets, and the pile falls off an unevenly worn surface by 4-10 mm less than the original or desired size.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS83187A CS232058B1 (en) | 1983-01-11 | 1983-01-11 | Forming of meallurgy coated layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS83187A CS232058B1 (en) | 1983-01-11 | 1983-01-11 | Forming of meallurgy coated layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS18783A1 CS18783A1 (en) | 1984-05-14 |
| CS232058B1 true CS232058B1 (en) | 1985-01-16 |
Family
ID=5333586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS83187A CS232058B1 (en) | 1983-01-11 | 1983-01-11 | Forming of meallurgy coated layer |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS232058B1 (en) |
-
1983
- 1983-01-11 CS CS83187A patent/CS232058B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS18783A1 (en) | 1984-05-14 |
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