{"id":4602,"date":"2024-05-09T07:21:33","date_gmt":"2024-05-09T07:21:33","guid":{"rendered":"https:\/\/3dpmetal.com\/?p=4602"},"modified":"2024-05-09T07:21:38","modified_gmt":"2024-05-09T07:21:38","slug":"stainless-steel-17-4ph-powder-202405093","status":"publish","type":"post","link":"https:\/\/3dpmetal.com\/cs\/stainless-steel-17-4ph-powder-202405093\/","title":{"rendered":"Nerezov\u00e1 ocel 17-4PH Pr\u00e1\u0161ek"},"content":{"rendered":"

P\u0159edstavte si kovov\u00fd pr\u00e1\u0161ek, kter\u00fd v sob\u011b spojuje to nejlep\u0161\u00ed z obou sv\u011bt\u016f: p\u016fsobivou pevnost oceli a odolnost proti korozi, d\u00edky n\u00ed\u017e nerezov\u00e1 ocel z\u00e1\u0159\u00ed. To je kouzlo Nerezov\u00e1 ocel 17-4PH pr\u00e1\u0161ek<\/a>, kter\u00fd m\u011bn\u00ed pravidla hry ve sv\u011bt\u011b aditivn\u00ed v\u00fdroby (3D tisku). \u010c\u00edm p\u0159esn\u011b je ale tento pr\u00e1\u0161ek tak v\u00fdjime\u010dn\u00fd? P\u0159ipoutejte se, proto\u017ee se vyd\u00e1me na cestu za odhalen\u00edm tajemstv\u00ed pr\u00e1\u0161ku 17-4PH, prozkoum\u00e1me jeho vlastnosti, pou\u017eit\u00ed a d\u016fvody, pro\u010d by mohl b\u00fdt ide\u00e1ln\u00ed pro v\u00e1\u0161 p\u0159\u00ed\u0161t\u00ed projekt.<\/p>\n\n\n\n

Stavebn\u00ed prvky pr\u00e1\u0161kov\u00e9 nerezov\u00e9 oceli 17-4PH<\/h2>\n\n\n\n

Pr\u00e1\u0161ek 17-4PH je ve sv\u00e9 podstat\u011b typem martenzitick\u00e9 precipita\u010dn\u011b kalen\u00e9 nerezov\u00e9 oceli. Mo\u017en\u00e1 to zn\u00ed jako vzne\u0161en\u00e9 term\u00edny, ale poj\u010fme si je rozebrat. Jak mo\u017en\u00e1 v\u00edte, nerezov\u00e1 ocel je zn\u00e1m\u00e1 sv\u00fdm obsahem chromu, kter\u00fd tvo\u0159\u00ed ochrannou vrstvu, je\u017e chr\u00e1n\u00ed kov p\u0159ed koroz\u00ed a rz\u00ed. Obsah chromu v pr\u00e1\u0161ku 17-4PH se pohybuje kolem 17% a nab\u00edz\u00ed vynikaj\u00edc\u00ed odolnost v\u016f\u010di drsn\u00e9mu prost\u0159ed\u00ed.<\/p>\n\n\n\n

\"Tajn\u00e1 om\u00e1\u010dka\" v\u0161ak spo\u010d\u00edv\u00e1 v p\u0159\u00eddavn\u00e9m niklu 4%. Tento nikl spolu se specifick\u00fdmi procesy tepeln\u00e9ho zpracov\u00e1n\u00ed umo\u017e\u0148uje pr\u00e1\u0161ku prom\u011bnit jeho vnit\u0159n\u00ed strukturu a v\u00fdrazn\u011b zv\u00fd\u0161it jeho pevnost a tvrdost. P\u0159edstavte si to jako nesm\u011bl\u00fd sval, kter\u00fd nap\u00edn\u00e1 svou s\u00edlu - z\u00e1kladn\u00ed kov se m\u016f\u017ee zd\u00e1t nen\u00e1padn\u00fd, ale p\u0159i spr\u00e1vn\u00e9 \u00faprav\u011b uvoln\u00ed skryt\u00fd potenci\u00e1l.<\/p>\n\n\n\n

Tato jedine\u010dn\u00e1 kombinace prvk\u016f \u010din\u00ed z pr\u00e1\u0161ku 17-4PH skute\u010dnou s\u00edlu. Nab\u00edz\u00ed v\u00fdjime\u010dnou pevnost, kter\u00e1 se vyrovn\u00e1 n\u011bkter\u00fdm typ\u016fm n\u00e1strojov\u00fdch ocel\u00ed, a z\u00e1rove\u0148 si zachov\u00e1v\u00e1 odolnost proti korozi, d\u00edky n\u00ed\u017e je nerezov\u00e1 ocel tak cenn\u00e1.<\/p>\n\n\n

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\"Nerezov\u00e1<\/figure>\n<\/div>\n\n\n

Kl\u00ed\u010dov\u00e9 chemick\u00e9 slo\u017een\u00ed Nerezov\u00e1 ocel 17-4PH Pr\u00e1\u0161ek<\/a>:<\/strong><\/p>\n\n\n\n

Element<\/th>Hmotnost Procento<\/th><\/tr>
Chrom (Cr)<\/td>15.5-17.5<\/td><\/tr>
Nikl (Ni)<\/td>3.0-4.5<\/td><\/tr>
M\u011b\u010f (Cu)<\/td>Max. 0,50<\/td><\/tr>
Mangan (Mn)<\/td>Max. 1,00<\/td><\/tr>
K\u0159em\u00edk (Si)<\/td>Max. 1,00<\/td><\/tr>
Uhl\u00edk (C)<\/td>Max. 0,08<\/td><\/tr>
Fosfor (P)<\/td>Max. 0,040<\/td><\/tr>
S\u00edra (S)<\/td>Max. 0,030<\/td><\/tr>
\u017delezo (Fe)<\/td>Balance<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Jak se pr\u00e1\u0161ek 17-4PH m\u011bn\u00ed na vysoce v\u00fdkonn\u00e9 d\u00edly<\/h2>\n\n\n\n

Tady to za\u010d\u00edn\u00e1 b\u00fdt opravdu zaj\u00edmav\u00e9. Pr\u00e1\u0161ek 17-4PH je jako pr\u00e1zdn\u00e9 pl\u00e1tno, kter\u00e9 \u010dek\u00e1 na p\u0159etvo\u0159en\u00ed. D\u00edky kouzlu aditivn\u00ed v\u00fdroby lze tento pr\u00e1\u0161ek pe\u010dliv\u011b nan\u00e1\u0161et vrstvu po vrstv\u011b a vytv\u00e1\u0159et tak slo\u017eit\u00e9 3D struktury. Skute\u010dn\u00e9 kouzlo se v\u0161ak odehr\u00e1v\u00e1 a\u017e po procesu tisku.<\/p>\n\n\n\n

Pr\u00e1\u0161ek 17-4PH m\u00e1 pozoruhodnou schopnost precipita\u010dn\u00edho vytvrzov\u00e1n\u00ed. Jedn\u00e1 se o specifick\u00fd proces tepeln\u00e9ho zpracov\u00e1n\u00ed, p\u0159i kter\u00e9m je materi\u00e1l vystaven vysok\u00fdm teplot\u00e1m a n\u00e1sledn\u00e9mu rychl\u00e9mu ochlazen\u00ed. To vyvol\u00e1 tvorbu drobn\u00fdch tvrd\u00fdch \u010d\u00e1stic v kovov\u00e9 matrici, kter\u00e9 jsou jako mikroskopi\u010dt\u00ed voj\u00e1ci zpev\u0148uj\u00edc\u00ed strukturu. V\u00fdsledek? Dramatick\u00e9 zv\u00fd\u0161en\u00ed pevnosti a tvrdosti, d\u00edky \u010demu\u017e se 3D vyti\u0161t\u011bn\u00fd d\u00edl st\u00e1v\u00e1 skute\u010dnou silou, se kterou je t\u0159eba po\u010d\u00edtat.<\/p>\n\n\n\n

Tato jedine\u010dn\u00e1 vlastnost odli\u0161uje pr\u00e1\u0161ek 17-4PH od ostatn\u00edch kovov\u00fdch pr\u00e1\u0161k\u016f pou\u017e\u00edvan\u00fdch p\u0159i 3D tisku. Umo\u017e\u0148uje vytv\u00e1\u0159et d\u00edly, kter\u00e9 jsou nejen tvarov\u011b slo\u017eit\u00e9, ale tak\u00e9 neuv\u011b\u0159iteln\u011b pevn\u00e9 a odoln\u00e9.<\/p>\n\n\n\n

pou\u017eit\u00ed pr\u00e1\u0161ku 17-4PH<\/h2>\n\n\n\n

D\u00edky sv\u00e9 p\u016fsobiv\u00e9 pevnosti a odolnosti proti korozi se pr\u00e1\u0161ek 17-4PH uplatn\u00ed v \u0161irok\u00e9 \u0161k\u00e1le n\u00e1ro\u010dn\u00fdch aplikac\u00ed. Zde je n\u011bkolik nejlep\u0161\u00edch p\u0159\u00edklad\u016f:<\/p>\n\n\n\n