{"id":1438,"date":"2020-10-14T05:50:45","date_gmt":"2020-10-14T05:50:45","guid":{"rendered":"https:\/\/pj4iaixa9m.wpdns.site\/?p=1438"},"modified":"2020-10-16T06:21:25","modified_gmt":"2020-10-16T06:21:25","slug":"now-lets-know-more-about-the-production-of-punch-noise","status":"publish","type":"post","link":"https:\/\/www.harslepress.com\/vi\/now-lets-know-more-about-the-production-of-punch-noise\/","title":{"rendered":"Ti\u1ebfng \u0111\u1ea5m ph\u00e1t ra t\u1eeb \u0111\u00e2u\uff1f"},"content":{"rendered":"

Ho\u1ea1t \u0111\u1ed9ng t\u1ea3i \u1ed3n c\u1ee7a ph\u00e2n x\u01b0\u1edfng \u0111\u1ee5c l\u1ed7 l\u00e0 h\u01a1n 90dBA. \u1ede Trung Qu\u1ed1c, ph\u00e2n x\u01b0\u1edfng \u0111\u1ee5c l\u1ed7 th\u01b0\u1eddng cao t\u1edbi 90-110DBA, d\u1eabn \u0111\u1ebfn t\u00e1c h\u1ea1i l\u1edbn \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi v\u1eadn h\u00e0nh thi\u1ebft b\u1ecb v\u00e0 nh\u00e2n vi\u00ean ph\u00e2n x\u01b0\u1edfng kh\u00e1c, \u0111\u1ed3ng th\u1eddi n\u00f3 c\u0169ng c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng. Vi\u1ec7c x\u1eed l\u00fd v\u00e0 ki\u1ec3m so\u00e1t ti\u1ebfng \u1ed3n c\u1ee7a m\u00e1y \u0111\u1ed9t \u0111\u00e3 b\u1eaft \u0111\u1ea7u s\u1edbm h\u01a1n \u1edf c\u00e1c n\u01b0\u1edbc ph\u00e1t tri\u1ec3n, Trung Qu\u1ed1c \u0111\u00e3 b\u1eaft \u0111\u1ea7u c\u00e1c nghi\u00ean c\u1ee9u t\u01b0\u01a1ng t\u1ef1 v\u00e0o cu\u1ed1i nh\u1eefng n\u0103m 1970. Khi gi\u1ea3m ti\u1ebfng \u1ed3n c\u1ee7a m\u00e1y \u0111\u1ed9t, ch\u00fang ta n\u00ean xem x\u00e9t nhi\u1ec1u y\u1ebfu t\u1ed1, ch\u1eb3ng h\u1ea1n nh\u01b0 ch\u1ea5t l\u01b0\u1ee3ng gia c\u00f4ng, n\u0103ng su\u1ea5t, v\u1eadn h\u00e0nh thu\u1eadn ti\u1ec7n v\u00e0 chi ph\u00ed. V\u00ec v\u1eady vi\u1ec7c x\u1eed l\u00fd ti\u1ebfng \u1ed3n c\u1ee7a c\u00fa \u0111\u1ea5m r\u1ea5t c\u1ea5p thi\u1ebft v\u00e0 kh\u00f3 kh\u0103n.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

B\u00e2y gi\u1edd ch\u00fang ta h\u00e3y bi\u1ebft th\u00eam v\u1ec1 vi\u1ec7c s\u1ea3n xu\u1ea5t ti\u1ebfng \u1ed3n \u0111\u1ea5m<\/a>!<\/p>\n\n\n\n

Ti\u1ebfng \u1ed3n m\u1ea1nh ph\u00e1t ra khi m\u00e1y d\u1eadp \u0111ang ho\u1ea1t \u0111\u1ed9ng t\u1ea3i. C\u00e1c ngu\u1ed3n ch\u00ednh c\u1ee7a ti\u1ebfng \u1ed3n \u0111\u1ed9t l\u00e0 va \u0111\u1eadp gi\u1eefa \u0111\u1ea7u \u0111\u1ed9t v\u00e0 ph\u00f4i, thanh \u0111\u1ed9t v\u00e0 ph\u00f4i, d\u1ee1 t\u1ea5m v\u00e0 v\u1eadt li\u1ec7u t\u1ea5m, v\u00e0 ti\u1ebfng \u1ed3n khi \u0111\u1ed9t v\u00e0 c\u1eaft h\u00ecnh th\u00e0nh trong qu\u00e1 tr\u00ecnh \u0111\u1ed9t v\u00e0 c\u1eaft.<\/p>\n\n\n\n

D\u01b0\u1edbi \u0111\u00e2y l\u00e0 ba lo\u1ea1i ti\u1ebfng \u1ed3n:<\/p>\n\n\n\n

(1) Ti\u1ebfng \u1ed3n t\u00e1c \u0111\u1ed9ng<\/p>\n\n\n\n

Ti\u1ebfng \u1ed3n t\u00e1c \u0111\u1ed9ng l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a ti\u1ebfng \u1ed3n c\u00fa \u0111\u1ea5m. Khi c\u00fa \u0111\u1ea5m c\u1eaft v\u1eadt li\u1ec7u t\u1ea5m, n\u00f3 s\u1ebd va ch\u1ea1m v\u1edbi v\u1eadt li\u1ec7u t\u1ea5m v\u00e0 t\u1ea1o ra ti\u1ebfng \u1ed3n khi va ch\u1ea1m. Ti\u1ebfng \u1ed3n t\u00e1c \u0111\u1ed9ng \u0111\u01b0\u1ee3c chia th\u00e0nh ti\u1ebfng \u1ed3n khi t\u0103ng t\u1ed1c v\u00e0 ti\u1ebfng \u1ed3n t\u1ef1 g\u1ea7m. Khi c\u00fa \u0111\u1ea5m ch\u1ea1m v\u00e0o ch\u1ed7 tr\u1ed1ng, ti\u1ebfng \u1ed3n gia t\u1ed1c xu\u1ea5t hi\u1ec7n. N\u00f3 rung khi tr\u1ed1ng b\u1ecb t\u00e1c \u0111\u1ed9ng. \u00c2m thanh l\u00e0 ti\u1ebfng \u1ed3n t\u1ef1 g\u1ea7m.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

(2) Ti\u1ebfng \u1ed3n do \u0111\u1ed9t v\u00e0 c\u1eaft<\/p>\n\n\n\n

V\u1eadt li\u1ec7u b\u1ecb g\u00e3y trong qu\u00e1 tr\u00ecnh \u0111\u1ed9t v\u00e0 c\u1eaft, d\u1eabn \u0111\u1ebfn vi\u1ec7c \u0111\u1ed9t ng\u1ed9t b\u1ecb d\u1ee1 t\u1ea3i. \u00c2m thanh t\u1ea1o ra l\u00e0 ti\u1ebfng \u0111\u1ea5m v\u00e0 ti\u1ebfng c\u1eaft. C\u00fa \u0111\u1ea5m rung v\u00e0 g\u00e2y ra b\u1ee9c x\u1ea1 \u00e2m thanh c\u1ee7a th\u00e2n m\u00e1y bay v\u00e0 rung \u0111\u1ed9ng m\u1eb7t \u0111\u1ea5t.<\/p>\n\n\n\n

(3) Ti\u1ebfng \u1ed3n do khe h\u1edf c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn truy\u1ec1n \u0111\u1ed9ng<\/p>\n\n\n\n

C\u00f3 m\u1ed9t kho\u1ea3ng c\u00e1ch ph\u00f9 h\u1ee3p gi\u1eefa m\u1ed7i ph\u1ea7n k\u1ebft n\u1ed1i c\u1ee7a c\u00fa \u0111\u1ea5m. L\u1ef1c va ch\u1ea1m g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng quay ng\u01b0\u1ee3c c\u1ee7a tr\u1ee5c v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn b\u1ecb k\u00edch th\u00edch rung. Cu\u1ed1i c\u00f9ng b\u1ee9c x\u1ea1 \u00e2m thanh t\u1ea1o ra ti\u1ebfng \u1ed3n.<\/p>\n\n\n\n

H\u00e3y nh\u1ea5p v\u00e0o http:\/\/www.harsle.com<\/a> \u0111\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 m\u00e1y \u0111\u1ee5c l\u1ed7!<\/p>","protected":false},"excerpt":{"rendered":"

Noise load operation of punch workshop is more than 90dBA. In China, punch workshop is generally as high as 90-110DBA,<\/p>","protected":false},"author":4,"featured_media":1448,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[217,517,516],"class_list":["post-1438","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-punching-machine","tag-punch-noise","tag-punch-press-control","tag-punch-shearing"],"jetpack_featured_media_url":"https:\/\/www.harslepress.com\/wp-content\/uploads\/2020\/10\/b2e38b1bb8b66af4804fb289f05c45c.png","_links":{"self":[{"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/posts\/1438","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/comments?post=1438"}],"version-history":[{"count":0,"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/posts\/1438\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/media\/1448"}],"wp:attachment":[{"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/media?parent=1438"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/categories?post=1438"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/tags?post=1438"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}