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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\/SACM645"; 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); }); }(); SACM645所屬類別 : 材料目錄1特性及適用范圍2對應各國牌號折疊編輯本段特性及適用范圍SACM645合金結構鋼有高的表面硬度、耐磨性及疲勞強度，并具有良好的耐熱性及腐蝕性，淬透性不高。SACM645用于制作高耐磨性、高疲勞強度和相當大的強度、處理后尺寸精度高的氮化零件，如仿模、氣缸套、齒輪、高壓閥門、鏜桿、蝸桿、磨床主軸等。但尺寸較大的零件不宜采用?！窕瘜W成份:碳 C :0.35~0.42硅 Si:0.20~0.45錳 Mn:0.30~0.60硫 S :允許殘余含量≤0.035磷 P :允許殘余含量≤0.035鉻 Cr:1.35~1.65鎳 Ni:允許殘余含量≤0.030銅 Cu:允許殘余含量≤0.030鉬 Mo:0.15~0.25●力學性能:抗拉強度 σb (MPa):≥980(100)屈服強度 σs (MPa):≥835(85)伸長率 δ5 (%):≥14斷面收縮率 ψ (%):≥50沖擊功 Akv (J):≥71沖擊韌性值 αkv (J/cm2):≥88(9)硬度 :≤229HB試樣尺寸:試樣毛坯尺寸為30mm●熱處理規(guī)范及金相組織:熱處理規(guī)范:淬火940℃,水冷、油冷;回火640℃,水冷、油冷?！窠回洜顟B(tài):以熱處理(正火、退火或高溫回火)或不熱處理狀態(tài)交貨，交貨狀態(tài)應在合同中注明。折疊編輯本段對應各國牌號對應國產(chǎn)牌號:38CrMoAl對應德國牌號:34CrAlMo5(1.8507)對應英國牌號:905M39對應國標牌號:R683/Ⅹ4