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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\/31crmov9"; 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(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); }); }(); 31CRMOV9，是一種合金結(jié)構(gòu)鋼。中文名 31CRMOV9 密    度 （kg/dm3) 7.73 彈性模量 （MPa) 210 鍛造溫度  1100℃-850℃。標(biāo)準(zhǔn)：EN 10085 1.8519DIN 17211 1.8519化學(xué)成分：碳 C:0.27~0.34硅 Si:≤0.40錳 Mn:0.40~0.70硫 S:≤0.035磷 P:≤0.025鉻 Cr:2.30~2.70鉬 Mo:0.15~0.25釩 V:0.10~0.20交貨硬度： 245~255 HB。鍛造溫度： 1100℃-850℃。密度：(kg/dm3) 7.73彈性模量：(MPa) 21020℃電阻：(Ω mm2/m) 0.1920℃導(dǎo)熱率：(W/m K) 43.020℃熱容：(J/kg K) 441退火條件下的熱膨脹系數(shù):(1/1000000)20 – 100 ℃ 11.520 – 200 ℃ 12.520 – 300 ℃ 13.320 – 400 ℃ 13.9熱處理Ms： 360℃AC1： 775℃AC3： 835℃軟化退火軟化退火在680℃-720℃的溫度下進(jìn)行，并緩慢冷卻。硬化在840℃-870℃的溫度下，水中淬火。在850℃-880℃的溫度下，油中淬火。回火在540℃-680℃的溫度下進(jìn)行，在空氣中冷卻。