{"id":8147,"date":"2023-09-21T12:38:47","date_gmt":"2023-09-21T10:38:47","guid":{"rendered":"https:\/\/elhco.com\/?page_id=8147"},"modified":"2023-09-26T13:21:56","modified_gmt":"2023-09-26T11:21:56","slug":"niquel-quimic","status":"publish","type":"page","link":"https:\/\/elhco.com\/ca\/niquel-quimic\/","title":{"rendered":"N\u00edquel Qu\u00edmic"},"content":{"rendered":"

RECOBRIMENT DE N\u00cdQUEL QU\u00cdMIC<\/h2><\/div>
<\/div><\/div>

El proc\u00e9s de n\u00edquel qu\u00edmic \u00e9s el proc\u00e9s de recobriment catal\u00edtic m\u00e9s important utilitzat en les \u00faltimes dues d\u00e8cades. Nosaltres utilitzem el proc\u00e9s de n\u00edquel qu\u00edmic en el qual s\u2019obt\u00e9 un recobriment de n\u00edquel-f\u00f2sfor, amb diferents proporcions de f\u00f2sfor. Tenim tres tipus de recobriments: de baix contingut de f\u00f2sfor (2-5%), de mig contingut de f\u00f2sfor (6-9%) i d\u2019alt contingut de f\u00f2sfor (>10.5%). Disposem de processos autom\u00e0tics amb tancs de treball amb capacitat m\u00e0xima de 2000 L.<\/p>\n

El proc\u00e9s de deposici\u00f3 \u00e9s basa en una reacci\u00f3 redox en la qual un agent de reducci\u00f3, l\u2019hipofosfit de sodi (NaH2<\/sub>PO2<\/sub>), s\u2019oxida i els ions de Ni2<\/sup> la superf\u00edcie del material. El proc\u00e9s tamb\u00e9 s\u2019anomena auto catal\u00edtic, perqu\u00e8 una vegada depositada la primera capa de n\u00edquel, aquesta actua com a catalitzador per la resta del proc\u00e9s. En conseq\u00fc\u00e8ncia, hi ha una depend\u00e8ncia lineal del temps de la reacci\u00f3 i el gruix de la capa del recobriment.<\/p>\n

Algunes de les caracter\u00edstiques m\u00e9s destacades d\u2019aquests recobriments s\u00f3n l\u2019alta resist\u00e8ncia a la corrosi\u00f3 i al desgast, l\u00b4excel\u00b7lent uniformitat, l\u2019ampli ventall de gruixos i de propietats mec\u00e0niques i f\u00edsiques, bona soldabilitat i lubricitat superficial.<\/p>\n

Les propietats dels recobriments depenen del contingut de f\u00f2sfor. Els recobriments de baix contingut de f\u00f2sfor s\u00f3n cristal\u00b7lins i durs i, com a conseq\u00fc\u00e8ncia, presenten una alta resist\u00e8ncia la desgast. D\u2019altra banda, els recobriments d\u2019alt contingut de f\u00f2sfor s\u00f3n amorfs i presenten una alta resist\u00e8ncia a la corrosi\u00f3. En general, tots els tipus de recobriments tenen una bona adhesi\u00f3. No obstant, el grau d\u2019adhesi\u00f3 dep\u00e8n d\u2019alguns par\u00e0metres com s\u00f3n el gruix de la capa, el contingut de f\u00f2sfor, el tractament t\u00e8rmic i la ductilitat del substrat. Els recobriments de n\u00edquel-f\u00f2sfor s\u00f3n auto-lubricants, millorant el coeficient de fricci\u00f3.<\/p>\n

Una caracter\u00edstica molt important i \u00fanica pels recobriments qu\u00edmics, \u00e9s la uniformitat de la capa en la mateixa superf\u00edcie, els recobriments qu\u00edmics segueixen completament el perfil del substrat.<\/p>\n<\/div><\/div><\/div>

\"N\u00edquel<\/div><\/div><\/div>
\"Recobriment<\/div><\/div><\/div>
\"Recobriments<\/div><\/div><\/div>
\"Recobriments<\/div><\/div><\/div><\/div>
<\/i><\/div>
<\/i><\/div><\/div><\/div><\/div><\/div><\/div><\/div>

Algunes propietats dels recobriments de n\u00edquel-f\u00f2sfor<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n
Contingut de f\u00f2sforPropietat<\/strong><\/th>\nBaix contingut
\n1-5 (% per pes)<\/strong><\/th>\n		Medi contingut
\n6-9 (% per pes)<\/strong><\/th>\n		Alt contingut
\n10-12 (% per pes)<\/strong><\/th>\n<\/tr>\n
Microestructura<\/strong><\/td>\nCristal\u00b7lina<\/td>\nCristal\u00b7lina + Amorfa<\/td>\nAmorfa<\/td>\n<\/tr>\n
Moment magn\u00e8tic<\/strong><\/td>\nAlt (0.01-0.03 A\u00b7m2<\/sup>)<\/td>\nIntermedi (0.003-0.006 A\u00b7m2<\/sup>)<\/td>\nBaix (0-0.002 A\u00b7m2<\/sup>)<\/td>\n<\/tr>\n
Resistivitat el\u00e8ctrica<\/strong><\/td>\nBaixa (0.03-0.05 mW\u00b7cm)<\/td>\nInterm\u00e8dia (0.06-0.08 mW\u00b7cm)<\/td>\nAlta (0.09-0.13 mW\u00b7cm)<\/td>\n<\/tr>\n
Soldabilitat<\/strong><\/td>\nAlta<\/td>\nInterm\u00e8dia<\/td>\nBaixa<\/td>\n<\/tr>\n
Coeficient d\u2019expansi\u00f3 t\u00e8rmica<\/strong><\/td>\nAlt (>23 m\/min\u00b7\u00b0C)<\/td>\nIntermedi -Alt (14-20 m\/min\u00b7\u00b0C)<\/td>\nBaix (< 11 m\/min\u00b7\u00b0C)<\/td>\n<\/tr>\n
Duresa (sense tractament t\u00e8rmic)<\/strong><\/td>\nAlta (700-800 HV)<\/td>\nIntermedi i (600-700)<\/td>\nBaixa (<600 HV)<\/td>\n<\/tr>\n
Resist\u00e8ncia a desgast<\/strong><\/td>\nAlta (10-12 mg\/1000 cicles)<\/td>\nInterm\u00e8dia-Baixa (12-18 mg\/1000 cicles)<\/td>\nBaixa (15-19 mg\/1000 cicles)<\/td>\n<\/tr>\n
Resist\u00e8ncia a tracci\u00f3<\/strong><\/td>\nBaixa (150-420 MPa)<\/td>\nAlta (700-1100 MPa)<\/td>\nInterm\u00e8dia-Alta (650-900 Mpa)<\/td>\n<\/tr>\n
Resist\u00e8ncia a la corrosi\u00f3<\/strong><\/td>\nBaixa<\/td>\nIntermedi a-Baixa<\/td>\nAlta<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Tots els tipus de recobriments de n\u00edquel-f\u00f2sfor tractats t\u00e8rmicament ofereixen una duresa de 800 a 1000 HV.<\/p>\n

Els recobriments d\u2019alt contingut en f\u00f2sfor presenten bona resist\u00e8ncia a corrosi\u00f3 en diferents condicions ambientals.<\/p>\n

– Resist\u00e8ncia a la corrosi\u00f3 dels recobriments qu\u00edmics d\u2019alt contingut ende f\u00f2sfor.<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Substancia<\/th>\nVelocitat de corrosi\u00f3 (\u00b5m\/any)<\/th>\n<\/tr>\n
Corrosi\u00f3 atmosf\u00e8rica<\/td>\n0<\/td>\n<\/tr>\n
Aigua destil\u00b7lada (95\u00b0C)<\/td>\n0<\/td>\n<\/tr>\n
Aigua salada (3.5% sals a 95\u00b0C)<\/td>\n0<\/td>\n<\/tr>\n
Hidr\u00f2xid de sodi (sosa c\u00e0ustica) (45% a 20\u00b0C)<\/td>\n0<\/td>\n<\/tr>\n
Hidr\u00f2xid de potassi (50% a 20\u00b0C)<\/td>\n0<\/td>\n<\/tr>\n
Benzol (20\u00b0C)<\/td>\n0<\/td>\n<\/tr>\n
Gas natural (amb min. 5.7 mg H2<\/sub>S) (95\u00b0C)<\/td>\n0<\/td>\n<\/tr>\n
Clorur de potassi (25% a 20\u00b0C)<\/td>\n0<\/td>\n<\/tr>\n
Acetona (20\u00b0C)<\/td>\n0.08<\/td>\n<\/tr>\n
Aigua desionitzada saturada amb aire (95\u00b0C)<\/td>\n0.1<\/td>\n<\/tr>\n
Aigua marina (a 95\u00b0C)<\/td>\n1<\/td>\n<\/tr>\n
Aigua doble destil\u00b7lada (a 350\u00b0C)<\/td>\n0.2<\/td>\n<\/tr>\n
Clorur de sodi (26% a 20\u00b0C)<\/td>\n0.2<\/td>\n<\/tr>\n
Hidr\u00f2xid de sodi (sosa c\u00e0ustica) (50% a 95\u00b0C)<\/td>\n0.2<\/td>\n<\/tr>\n
Fenol (90% a 20\u00b0C)<\/td>\n0.2<\/td>\n<\/tr>\n
Aigua de l\u2019aixeta<\/td>\n0.3-0.8<\/td>\n<\/tr>\n
Sulfat d\u2019amoni (10%) (20\u00b0C)<\/td>\n0.8<\/td>\n<\/tr>\n
\u00c0cid ac\u00e8tic glacial (20\u00b0C)<\/td>\n0.8<\/td>\n<\/tr>\n
Carbonat de sodi (20\u00b0C)<\/td>\n1<\/td>\n<\/tr>\n
\u00c0cid fosf\u00f2ric (85% a 20\u00b0C)<\/td>\n2.5<\/td>\n<\/tr>\n
Sulfat d\u2019amoni (soluci\u00f3 saturada a 20\u00b0C)<\/td>\n3<\/td>\n<\/tr>\n
\u00c0cid ox\u00e0lic (10% a 20\u00b0C)<\/td>\n3<\/td>\n<\/tr>\n
Sulfat d\u2019amoni (43% a 20\u00b0C)<\/td>\n3<\/td>\n<\/tr>\n
Salmorres saturades en CO2<\/sub> (95\u00b0C)<\/td>\n5<\/td>\n<\/tr>\n
\u00c0cid c\u00edtric (20\u00b0C)<\/td>\n7<\/td>\n<\/tr>\n
\u00c0cid sulf\u00faric (65% a 20\u00b0C)<\/td>\n9<\/td>\n<\/tr>\n
Nitrat d\u2019amoni (66% a 20\u00b0C)<\/td>\n10<\/td>\n<\/tr>\n
\u00c0cid f\u00f2rmic (88% a 20\u00b0C)<\/td>\n13<\/td>\n<\/tr>\n
Nitrat d\u2019amoni (20% a 20\u00b0C)<\/td>\n15<\/td>\n<\/tr>\n
Amon\u00edac (25% a 20\u00b0C)<\/td>\n16<\/td>\n<\/tr>\n
Hidr\u00f2xid de sodi (sosa c\u00e0ustica) (72% a 110\u00b0C)<\/td>\n18<\/td>\n<\/tr>\n
Amon\u00edac (10% a 20\u00b0C)<\/td>\n23<\/td>\n<\/tr>\n
\u00c0cid n\u00edtric (1% a 20\u00b0C)<\/td>\n25<\/td>\n<\/tr>\n
\u00c0cid ac\u00e8tic (10% a 20\u00b0C)<\/td>\n25<\/td>\n<\/tr>\n
\u00c0cid clorh\u00eddric (2% a 20\u00b0C)<\/td>\n27<\/td>\n<\/tr>\n
\u00c0cid fluorh\u00eddric (2% a 20\u00b0C)<\/td>\n27<\/td>\n<\/tr>\n
\u00c0cid sulf\u00faric (85% a 20\u00b0C)<\/td>\n28<\/td>\n<\/tr>\n
Amon\u00edac (2% a 20\u00b0C)<\/td>\n28<\/td>\n<\/tr>\n
\u00c0cid fluorh\u00eddric (25% a 20\u00b0C)<\/td>\n30<\/td>\n<\/tr>\n
\u00c0cid fluorh\u00eddric (40% a 20\u00b0C)<\/td>\n53<\/td>\n<\/tr>\n
Clorur de ferro (1% a 20\u00b0C)<\/td>\n200<\/td>\n<\/tr>\n
\u00c0cid sulf\u00faric-\u00d2leum (20\u00b0C)<\/td>\n250<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Totes aquestes caracter\u00edstiques fan que els recobriments de n\u00edquel-f\u00f2sfor siguin aplicats en diversos sectors industrials com ara l\u2019automoci\u00f3, l\u2019aeron\u00e0utica, la qu\u00edmica, la petroqu\u00edmica, l\u2019electr\u00f2nica, l\u2019alimentaria, la naval, la m\u00e8dica i farmac\u00e8utica, la militar, etc.<\/p>\n

Algunes aplicacions dels recobriments de n\u00edquel-f\u00f2sfor.<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Industria<\/th>\nComponents<\/th>\nGruix de la capa (\u00b5m)<\/th>\n<\/tr>\n
Automoci\u00f3<\/td>\nDissipadors de calor, Components del carburador, Injectors, Eixos de conducci\u00f3, Pistons de frens, Tubs d\u2019escapament, Silenciadors, Amortidors, Components de bloqueig, Motors de la bomba de combustible, Components de la bomba d’aigua, Components de la columna de direcci\u00f3 de les rodes, Components del sistema de AIRBAG, Components del compressor del aire condicionat<\/td>\n2-38<\/td>\n<\/tr>\n
Aeron\u00e0utica<\/td>\nMonyons dels coixinets, Servov\u00e0lvules, Paletes de compressors, Components que treballen en zones calentes, Caps de pistons, Els eixos i els h\u00e8lixs principals dels motors, Actuadors hidr\u00e0ulics, Components del tren d’aterratge, Peces de gir, Suports de motor, Brides, Perns de seguretat, Tubs d’alimentaci\u00f3 del motor, Juntes universals per les aletes de l\u2019ala<\/td>\n10-70<\/td>\n<\/tr>\n
Qu\u00edmica i petroqu\u00edmica<\/td>\nRecipients a pressi\u00f3, Reactors, Eixos d\u2019agitadors, Bombes i impulsors, Intercanviadors de calor, Filtres, Pales de turbines i rotors, V\u00e0lvules, Actuadors hidr\u00e0ulics<\/td>\n25-125<\/td>\n<\/tr>\n
Electr\u00f2nica<\/td>\nTerminals de cables conductors, Connectors, Enclavaments, D\u00edodes i transistors, Accessoris d\u2019uni\u00f3, Placa de circuit impr\u00e8s<\/td>\n2-25<\/td>\n<\/tr>\n
Alimentaria<\/td>\nMaquinaries pneum\u00e0tiques d\u2019envasament en llaunes,\u00a0 Motlles, Graelles i congeladors, Cargols d\u2019alimentaci\u00f3 i extrusors<\/td>\n12-25<\/td>\n<\/tr>\n
Naval<\/td>\nEquipament mar\u00edtim i bombes<\/td>\n25-50<\/td>\n<\/tr>\n
Manipulaci\u00f3 de material<\/td>\nEixos i cilindres hidr\u00e0ulics, Extrusors, Cinturons de les baules impulsors, Engranatges i embragatges<\/td>\n12-75<\/td>\n<\/tr>\n
Medica i Farmac\u00e8utica<\/td>\nEquips i instrumental quir\u00fargic d\u2019un sol \u00fas, Classificadors de p\u00edndoles, Cargols d\u2019alimentaci\u00f3 i extrusors<\/td>\n12-25<\/td>\n<\/tr>\n
Militar<\/td>\nAssembles de fusibles, Guies de radars, Miralls, Motors, Detonadors, Armes de foc<\/td>\n8-75<\/td>\n<\/tr>\n
Mines<\/td>\nSistemas hidr\u00e0uliques, Components de motors de mina, Connectors de canonades<\/td>\n30-60<\/td>\n<\/tr>\n
Ferrocarril<\/td>\nVagons cisterna, Eixos dels motors, Maquinari de cotxe<\/td>\n20-90<\/td>\n<\/tr>\n
Textil<\/td>\nGanivets, Guies, Fileres, Trinquets teler i agulles de teixir<\/td>\n12-50<\/td>\n<\/tr>\n
Paper i fusta<\/td>\nPlaques de suport pels ganivets corredors, Plaques d\u2019abrasi\u00f3, Components de maquinaria<\/td>\n~30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

A Elhco, si es treballa per la industria aeron\u00e0utica \u00e9s du a terme el proc\u00e9s segons les normes AIPS 02-04-008 i I+D-P-047.<\/p>\n<\/div><\/div><\/div><\/div><\/div>

SOL\u00b7LICITI COTITZACI\u00d3<\/h2><\/div>
<\/div><\/div><\/div><\/div>
ALODINE<\/span><\/a><\/div><\/div><\/div>
ANODIZAT DUR<\/span><\/a><\/div><\/div><\/div>
NETEJA ELECTROL\u00cdTICA AN\u00d2DICA<\/span><\/a><\/div><\/div><\/div><\/div><\/div>
<\/div>

El nostre proc\u00e9s de n\u00edquel qu\u00edmic compleix amb la normativa AMS2417.<\/h3><\/div>

Per veure les nostres certificacions per client, faci clic aqu\u00ed.<\/p>\n<\/div>

Certificacions<\/span><\/a><\/div><\/div><\/div><\/div><\/div>

SOL\u00b7LICITI COTITZACI\u00d3<\/h2><\/div>
<\/div><\/div>

Demani\u2019ns m\u00e9s informaci\u00f3 <\/strong>sobre els nostres tractaments t\u00e8cnics de superf\u00edcie i serveis. Escoltem les seves necessitats i l\u2019hi oferim una soluci\u00f3 de m\u00e0xima qualitat i seguretat<\/strong>. Podem treballar en s\u00e8ries curtes o en produccions de llarga durada.<\/p>\n<\/div>

<\/i>Demani pressupost<\/span><\/a><\/div><\/div><\/div><\/div><\/div>

SOL\u00b7LICITI COTITZACI\u00d3<\/h2><\/div>
<\/div><\/div>

Demani\u2019ns m\u00e9s informaci\u00f3<\/strong> sobre els nostres tractaments t\u00e8cnics de superf\u00edcie i serveis. Escoltem les seves necessitats i l\u2019hi oferim una soluci\u00f3 de m\u00e0xima qualitat i seguretat<\/strong>. Podem treballar en s\u00e8ries curtes o en produccions de llarga durada.<\/p>\n<\/div>

<\/i>Demani pressupost<\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":6764,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"100-width.php","meta":{"footnotes":""},"class_list":["post-8147","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nN\u00edquel Qu\u00edmic \u2013 Acabats de superf\u00edcie - Elhco<\/title>\n<meta name=\"description\" content=\"Alta resist\u00e8ncia a la corrosi\u00f3 i al desgast, uniformitat, propietats mec\u00e0niques i f\u00edsiques destacables, bona soldabilitat i lubricitat superficial.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/elhco.com\/ca\/niquel-quimic\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"N\u00edquel Qu\u00edmic \u2013 Acabats de superf\u00edcie - 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