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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\/B250P1"; 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(wèn)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); }); }(); B250P1屬于：無(wú)間隙原子高強(qiáng)度鋼，控制鋼中的化學(xué)成分來(lái)改善鋼的塑性應(yīng)變比（ r 值）和應(yīng)變硬化指數(shù)（ n 值）。由于鋼中元素的固溶強(qiáng)化和無(wú)間隙原子的微觀結(jié)構(gòu)，這種鋼既具有高強(qiáng)度，又具有非常好的冷成型性能，通常用來(lái)制作需要深沖壓的復(fù)雜部件。鋼號(hào)：B250P1產(chǎn)品名稱：無(wú)間隙原子高強(qiáng)度冷軋執(zhí)行標(biāo)準(zhǔn)：Q/BQB413-2009交貨狀態(tài)：冷軋。鋼廠：寶鋼等。B250P1化學(xué)成份范圍值:注：實(shí)際化學(xué)成分以鋼廠質(zhì)保書(shū)為準(zhǔn)。B250P1碳C：≤0.008B250P1錳Mn：≤1.2B250P1硫P：≤0.12B250P1磷S：≤0.025B250P1全鋁Alt :≥0.015B250P1鈦Ti:≤0.20a允許用Nb部分或全部代替Ti，此時(shí)Nb和/或Ti的總含量應(yīng)不大于 0.20%。B250P1力學(xué)性能范圍值:注：實(shí)際力學(xué)性能以鋼廠質(zhì)保書(shū)為準(zhǔn)?？估瓘?qiáng)度σb(MPa)：≥440屈服強(qiáng)度σ0.2(MPa)：250-360伸長(zhǎng)率A80mm(%)：≥32試樣尺寸：試樣毛坯尺寸為1.26mm