sum24l合金圓鋼-易切削鋼
專業(yè)為您提供易切削鋼牌號,材質(zhì)單,在線報價單 歡迎選購
百度百科-驗證 if (!window['__abbaidu_2020_subidgetf']) { window['__abbaidu_2020_subidgetf'] = function () { var subid = 01000000; return subid; }; } !function(){ var $ = require('wiki-common:widget/lib/jquery/jquery'); var Dialog = require('wiki-common:widget/ui/dialog/dialog'); var ClickstreamSdk = require('wiki-common:widget/util/clickstreamSdk'); var clickstream = new ClickstreamSdk.default({ appname: 'baike', platform: 'web', device: 'pc', page: 'spam', auto: true }); var sourceUrl = "\/item\/sum24l"; var fromPage = "pc_lemma_page_risk_score"; var logParam = { page: 'spam', fromPage: fromPage } clickstream.logActEvent($.extend({}, logParam, {'act_type': 'show'})); function init() { if (window.sdkMachine) { var machineSDK = new window.sdkMachine({ container: document.body, title: '訪問異常,請進行驗證', ak: 'GHm64ouBF7GGAhXNcsae9xiVByAGWhMI', deviceType: 'pc', type: 'spin', testUrl: '', initApiSuccessFn: function() { machineSDK.init(); }, errorFn: function(err) { alert('errfn___' + err.message || '') }, verifySuccessFn: function(result) { $.ajax({ type: 'GET', url: '/api/anticrawl/captchaverify', dataType: 'json', data: { ds: result.ds, passTk: result.tk, clientType: 'pc', tk: "d4b87f38b35a5e84f28e8674b41132db", sourceFrom: fromPage }, success: function(res) { if (res && res.errno === 0 && !res.isSpam) { clickstream.logActEvent($.extend({}, logParam, {'act_type': 'verify-pass'})); if (sourceUrl) { machineSDK.close(); window.location.href = sourceUrl; } } else { var submitInform = Dialog.inform({ icon: 'WARNING', mainMsg: '驗證失敗,請重新驗證' }); submitInform.show(); setTimeout(function() { submitInform.hide(); }, 3000); machineSDK.close(); init(); } } }); }, verifyFailFn: function() { }, feedbackEvent: function(feedback) { return true; }, }); } }; init(); }(); !function(){ require('wiki-common:widget/component/psLink/psLink'); var clickstream = require('wiki-common:packages/utils/logger'); clickstream.logViewPage({ page: 'all-pc' }); var tmpBaiduId = ''; require(['wiki-common:widget/util/setBaikeTmpBaiduId.es'], function (setBaikeTmpBaiduId, cookie) { setBaikeTmpBaiduId(tmpBaiduId); }); }(); SUM24L于鉛硫復(fù)合易切削結(jié)構(gòu)鋼。鉛易切鋼里,鉛以微小單質(zhì)金屬顆粒分布于鋼中并在鋼中不固熔,在切削加工過程中,刀具與加工件之間產(chǎn)生強烈的摩擦,使鋼中的鉛顆粒呈熔融狀析出,從而起到潤滑作用來改善鋼的切削性能,使鋼的切屑細碎,降低刀具磨損,最終延長刀具壽命。與不含鉛的鋼相比,含鉛鋼的切削性能可提高20~50%,而機械性能與熱處理性能基本保持不變,對冷、熱加工性和焊接性也無影響。鉛易切削鋼已廣泛用作制造精密儀表零件、汽車零件、各類機械的重要零件。但是鉛易切削鋼的接觸疲勞低,故不宜用于承受疲勞應(yīng)力負荷大的齒輪、軸承等零部件。SUM24L代替的趨勢。其切削性能同樣非常出色。適用于SUM24L不能使用的更加嚴格的場合。碳 C :<= 0.15錳 Mn:0.85~1.15硫 S :0.26~0.35磷 P :0.04~0.09鉛 Pb:0.10~0.35主要用于制作受力較小而對尺寸和光潔度要求嚴格的儀器儀表、手表零件、汽車、機床和其他各種機器上使用的,對尺寸精度和光潔度要求嚴格,而對機械性能要求相對較低的標準件,如齒輪、軸、螺栓、閥門、襯套、銷釘、管接頭、彈簧座墊及機床絲杠、塑料成型模具、外科和牙科手續(xù)用具等各種須經(jīng)二次加工切削之產(chǎn)品如資訊、精密、通訊、3C家電的切削性佳,加工普遍的切削用料。