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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\/45mn17al3"; 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); }); }(); 45mn17al3   45Mn17Al3低磁鋼系高合金單相奧氏體錳鋼。具有塑性好、韌性高、加工硬化傾向大、受熱膨脹系數(shù)大、電阻率大、熱導(dǎo)率低和磁性低等物理特性。在無磁建筑、無磁機(jī)械、選礦探礦設(shè)備及軍事等領(lǐng)域有著廣泛的應(yīng)用。 高錳無磁鋼45Mn17Al3 又叫917.執(zhí)行GJB，但是有好幾個(gè)標(biāo)準(zhǔn)。有鋼板的標(biāo)準(zhǔn)、螺紋的標(biāo)準(zhǔn)、型鋼的標(biāo)準(zhǔn)和鑄件的標(biāo)準(zhǔn)。所以您在選擇的時(shí)候一定要先歐諾個(gè)清楚自己。45Mn17Al3低磁鋼系高合金單相奧氏體錳鋼。具有塑性好、韌性高、加工硬化傾向大、受熱膨脹系數(shù)大、電阻率大、熱導(dǎo)率低和磁性低等物理特性。在無磁建筑、無磁機(jī)械、選礦探礦設(shè)備及軍事等領(lǐng)域有著廣泛的應(yīng)用。無磁鋼現(xiàn)已廣泛使用于許多電氣產(chǎn)品中：一.大中型變壓器油箱內(nèi)磁屏蔽、鐵芯拉板、線圈夾件、螺栓等漏磁場(chǎng)的結(jié)構(gòu)件；二.起重電磁鐵吸盤、磁選設(shè)備簡(jiǎn)體、選箱以及除鐵器；三.特殊冶煉電爐內(nèi)襯、爐蓋、電極夾板及電子攪拌裝置結(jié)構(gòu)件。無磁鋼45Mn17Al3化學(xué)成分（％）C :0.30～0.50Mn :15.0～19.5Al :2.40～3.60Cr :－Ni :－Ti :－Si :≤0.60S :≤0.04P :≤0.03