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La duret\u00e9 Brinell du bronze fritt\u00e9 se situe g\u00e9n\u00e9ralement entre 60 et 90, tandis que la duret\u00e9 Brinell du fer fritt\u00e9 peut g\u00e9n\u00e9ralement atteindre 100 \u00e0 120. L'acier inoxydable fritt\u00e9 d\u00e9pend en grande partie du type sp\u00e9cifique d'acier inoxydable, mais il peut g\u00e9n\u00e9ralement atteindre un niveau de duret\u00e9 Brinell allant jusqu'\u00e0 200 \u00e0 350 et un niveau de duret\u00e9 Rockwell allant jusqu'\u00e0 50 \u00e0 55 HRC.<\/p>\n
Hardness is a measure of a material’s resistance to local deformation, which is usually caused by indentations or scratches. The hardness of metals is usually measured using a Brinell or Rockwell hardness tester. The hardness of sintered metal can vary widely depending on the specific material and sintering process used.<\/p>\n
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Bronze fritt\u00e9 :<\/strong> The hardness of sintered bronze varies depending on its elemental composition and sintering process, with a Brinell hardness (BHN) generally ranging from 60 to 90. Sintered bronze is mainly used for producing mechanical transmission components such as self-lubricating bearings and gears. Bronze has excellent wear resistance and high-temperature performance, making it particularly suitable for bearings in high-speed, heavy-duty, high-temperature, and extreme environments. For example, bronze bearings are used in important components such as automotive engines’ connecting rod bearing shells, the bearing bushes at the end of machine tool spindles, the gears of motorcycle clutches, and the turbine discs of aircraft engines. Sintered bronze also has good corrosion resistance, making it widely used in marine engineering, chemical equipment, and various valves, water pumps, etc. in corrosive environments.<\/p>\n Fer fritt\u00e9<\/strong>: Il peut g\u00e9n\u00e9ralement atteindre un niveau de duret\u00e9 de 100 \u00e0 120 sur l'\u00e9chelle de duret\u00e9 Brinell, ce qui le rend tr\u00e8s adapt\u00e9 aux composants qui doivent r\u00e9sister \u00e0 des contraintes et \u00e0 l'usure \u00e9lev\u00e9es. Il est g\u00e9n\u00e9ralement utilis\u00e9 pour fabriquer diverses pi\u00e8ces m\u00e9caniques, en particulier celles qui doivent \u00eatre fabriqu\u00e9es par m\u00e9tallurgie des poudres, telles que les bielles, les paliers lisses, les engrenages, les pi\u00e8ces hydrauliques, etc. dans les moteurs automobiles. Ces pi\u00e8ces n\u00e9cessitent g\u00e9n\u00e9ralement une bonne r\u00e9sistance \u00e0 l'usure et peuvent devoir supporter des charges importantes dans certains cas.<\/p>\n Acier inoxydable fritt\u00e9<\/strong>: Il d\u00e9pend en grande partie du type sp\u00e9cifique d'acier inoxydable, mais il peut g\u00e9n\u00e9ralement atteindre un niveau de duret\u00e9 Brinell allant jusqu'\u00e0 200 \u00e0 350 et un niveau de duret\u00e9 Rockwell allant jusqu'\u00e0 50 \u00e0 55 HRC. En raison de sa duret\u00e9 et de sa r\u00e9sistance \u00e0 la corrosion, l'acier inoxydable fritt\u00e9 est souvent utilis\u00e9 dans des applications exigeantes telles que la production d'instruments chirurgicaux et de pi\u00e8ces de moteur haute performance.<\/p>\n In summary, the hardness of sintered metals is a key characteristic that determines their suitability for different applications. Sintered bronze, iron, and stainless steel all have different hardness levels, suitable for various applications; Whether it’s machine parts, engine components, or surgical tools, each of these sintered metals plays a role. The Brinell hardness of sintered bronze is usually between 60 and 90, while the Brinell hardness of sintered iron can usually reach 100 to 120. Sintered stainless steel largely depends on the specific type of stainless steel, but usually it can achieve a Brinell hardness level of up to 200 to 350 and a Rockwell […]<\/p>\n","protected":false},"author":5,"featured_media":2440,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[52],"tags":[],"class_list":["post-2438","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"yoast_head":"\n![\"\"](\"https:\/\/dewintech.com\/wp-content\/uploads\/2023\/10\/WPS\u56fe\u724712-300x208.jpeg\")
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\nCependant, la duret\u00e9 n'est pas le seul crit\u00e8re pour mesurer les performances des m\u00e9taux fritt\u00e9s, et d'autres indicateurs de performance tels que la t\u00e9nacit\u00e9, la r\u00e9sistance \u00e0 l'usure, la r\u00e9sistance \u00e0 la traction, la r\u00e9sistance \u00e0 la fatigue, la protection contre la corrosion, etc. sont tout aussi importants. Selon les diff\u00e9rentes exigences d'application, il peut \u00eatre n\u00e9cessaire de choisir diff\u00e9rents mat\u00e9riaux m\u00e9talliques fritt\u00e9s.<\/p>","protected":false},"excerpt":{"rendered":"