50CRVA合金圓鋼-彈簧鋼
專業(yè)為您提供彈簧鋼牌號,材質(zhì)單,在線報價單 歡迎選購
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\/50CRVA"; 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); }); }(); 簡介50CrVA有良好的力學(xué)性能和工藝性能,淬透性較高,加入釩使鋼的晶粒細(xì)化,降低過熱敏感性,提高了強(qiáng)度和韌性,具有高的疲勞強(qiáng)度,屈服比也較高?;拘畔⒕庉嬩摬拿Q:彈簧鋼 [1] 牌 號:50CrVA執(zhí)行標(biāo)準(zhǔn):GB/T 1222-2007特性用途 50CrVA彈簧鋼(7張)但焊接性差,冷因變形塑性低。是一種較高級彈簧,用作較大截面的高負(fù)荷重要彈簧及工作溫度<300 ℃的閥門彈簧、活塞彈簧、安全閥彈簧。一般,板材供貨規(guī)格為1.5~10.0MM之間,多退火狀態(tài),10~30毫米以上多為不退火狀態(tài),市場上現(xiàn)貨較少,故常需要訂期貨。鋼卷為熱軋狀態(tài),采用球化退火減低硬度以便為進(jìn)一步加工創(chuàng)造條件。重慶特鋼出廠50CrVA一般都是退火板,省去了再退火的處理。中碳合金彈簧鋼,鋼的最終熱處理為淬火、回火,該鋼在熱處理后具有較好的韌性,高的比例極限和強(qiáng)度極限,具有高的疲勞強(qiáng)度,與65Si2MnWA的淬透性相類似,具有高的淬透性,較低的過熱敏感性;零件使用溫度在300℃時,其彈性仍可保持。鋼的切削加工性能尚好,但冷變形時塑性低,焊接性較差。化學(xué)成份碳 C :0.46~0.54硅 Si:0.17~0.37錳 Mn:0.50~0.8050CrVA鋼帶硫 S :≤0.025磷 P :≤0.025鉻 Cr:0.80~1.10鎳 Ni:≤0.35銅 Cu:≤0.25釩 V :0.10~0.20 [2]