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百度百科-驗(yàn)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\/42CrMo4_42CrMo4%E5%9C%86%E9%92%A2_42CrMo4%E9%92%A2%E6%9D%BF"; 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(qǐng)進(jìn)行驗(yàn)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(yàn)證失敗，請(qǐng)重新驗(yàn)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); }); }(); ▲42CrMo4執(zhí)行標(biāo)準(zhǔn):SAEJ1249-2000▲42CrMo4化學(xué)成分：注：具體化學(xué)成分以鋼廠質(zhì)保書為準(zhǔn)。C：0.38~0.45  Si：0.17~0.37Mn：0.35~0.65Cr：0.90~1.30Mo：0.20~0.30Ni：≤0.30Cu：≤0.30S：≤0.035P：≤0.035▲42CrMo4力學(xué)性能：注：具體力學(xué)性能以鋼廠質(zhì)保書為準(zhǔn)。42CrMo4抗拉強(qiáng)度σb(MPa)：≥1080 　42CrMo4屈服強(qiáng)度σs(MPa)：≥930　42CrMo4伸長(zhǎng)率δ5(%)：≥12 　42CrMo4斷面收縮率ψ(%)：≥45 　42CrMo4沖擊功Akv(J)：≥63 　42CrMo4沖擊韌性值αkv(J/cm2)：≥78 　42CrMo4硬度：≤217HB 　▲42CrMo4屬于超高強(qiáng)度鋼，具有高強(qiáng)度和韌性，淬透性也較好，無明顯的回火脆性，調(diào)質(zhì)處理后有較高的疲勞極限和抗多次沖擊能力，低溫沖擊韌性良好。該鋼適宜制造要求一定強(qiáng)度和韌性的大、中型塑料模具?！?2CrMo4用途用作比35CrMo鋼要求強(qiáng)度更高或斷面更大的鍛件，如機(jī)車牽引用大齒輪，增壓器傳動(dòng)齒輪、后軸、發(fā)動(dòng)機(jī)氣缸，1200~2000m石油深井鉆桿接頭與打撈工具等。