中國(guó)45MnA/美國(guó)1046/日本SWRCH45K/德國(guó)C45(1.0503)特種鋼板-碳素鋼/模具鋼系列
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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\/%E4%B8%AD%E5%9B%BD45MnA\/%E7%BE%8E%E5%9B%BD1046\/%E6%97%A5%E6%9C%ACSWRCH45K\/%E5%BE%B7%E5%9B%BDC45%281.0503%29"; 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); }); }(); 材料特點(diǎn)優(yōu)質(zhì)碳素結(jié)構(gòu)鋼,牌號(hào)45Mn,特性及適用范圍:45Mn中碳調(diào)質(zhì)鋼,強(qiáng)度、韌性及淬透性均比45號(hào)鋼高,調(diào)質(zhì)處理后可獲得較好的綜合力學(xué)性能,切削加工性能尚好,但焊接性能差,冷變形塑性低,有回火脆性傾向,一般在調(diào)質(zhì)狀態(tài)下使用,也可在淬火和回火或正火狀態(tài)下使用。用于制造受磨損的零件,如轉(zhuǎn)軸、心軸、曲軸、花鍵軸、連桿、萬(wàn)向節(jié)軸、嚙合桿、齒輪、離合器盤(pán)、螺栓、螺母等?;瘜W(xué)成分主要成分為 Fe(鐵元素),且含有以下少量元素:碳 C :0.42~0.50%硅 Si:0.17~0.37%錳 Mn:0.70~1.00%硫 S :≤0.035%磷 P :≤0.035%鉻Cr:≤0.25%鎳 Ni:≤0.25%銅 Cu:≤0.25%力學(xué)性能●力學(xué)性能:抗拉強(qiáng)度 σb (MPa):≥620(63)屈服強(qiáng)度 σs (MPa):≥375(38)伸長(zhǎng)率 δ5 (%):≥15斷面收縮率 ψ (%):≥40沖擊功 Akv (J):≥39沖擊韌性值 αkv (J/cm2):≥49(5)硬度:未熱處理≤241HB;退火鋼≤217HB熱處理工藝:850℃正火、840℃淬火、600℃回火。主要特性【應(yīng)用舉例】 此鋼一般在調(diào)質(zhì)狀態(tài)下使用,使用溫度范圍在-20~425℃,主要代替40Cr鋼制作中、 小截面的調(diào)質(zhì)零件,如汽車(chē)半軸、轉(zhuǎn)向軸、蝸桿、花鍵軸和機(jī)床主軸、齒輪等。此外亦可代替40Cr鋼制作Φ250~320mm卷?yè)P(yáng)機(jī)中間軸等較大截面的零件。當(dāng)制作尺寸較小的零件時(shí)此鋼亦可代替40CrNi鋼使用。