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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\/Y40MN"; 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); }); }(); 簡介Y40Mn是高硫中碳易切削鋼，有較好的切削性能，與45號鋼相比可提高刀具壽命四倍，提高生產效率30%，有較高的強度和硬度，適于加工要求剛性高的零件，如絲杠、光桿、齒條和花鍵軸等。標準GB/T 8731-2008化學成分碳 C ：0.37～0.45硅 Si：0.15～0.35錳 Mn：1.20～1.55硫 S ：0.20～0.30磷 P ：≤0.04優點形狀規格多樣性通過設計不同形狀的模具，冷拉出不同截面形狀、不同規格公差的易削切鋼。角度可成直角或圓角。高精確度使用高質量的硬質合金模具，確保公差準確、統一。表面光滑先進的冷擠壓工藝使得易削切鋼產品表面光滑明亮。力學性能抗拉強度 σb (MPa)：(熱軋)590～735; (冷拉后高溫回火狀態)590～785伸長率 δ5 (%)：(熱軋)≥14;(冷軋)≥17斷面收縮率 ψ (%)：(熱軋)≥20硬度(熱軋)≤207HB;(冷拉)179～229HB交貨狀態以熱軋或冷拉狀態交貨，交貨狀態應在合同中注明。