6542特種鋼板-建筑及工業(yè)用鋼板系列
專業(yè)為您提供建筑及工業(yè)用鋼板系列牌號,材質(zhì)單,在線報價單 歡迎選購
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\/6542"; 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); }); }(); 說明: 6542高速鋼簡介:為鎢鉬系通用型高速鋼的代表鋼號,韌性、耐磨性優(yōu)于 W18Cr4V ,硬度、紅硬性及高溫硬度相當??捎糜谥圃旄鞣N承受沖擊力較大的刀具、一般刀具大型及熱塑成形刀具,也可作高負荷下的磨損的零件、冷作模具等。力學(xué)性能:硬度 :交貨硬度:(其他加工方法)≤262HB; (退火)≤255HB。試樣熱處理制度及淬回火硬度:≥63HRC(箱式爐)、≥64HRC(鹽浴爐)。化學(xué)成分:碳 C :0.80~0.90(允許偏差:±0.01)硅 Si:0.20~0.45(允許偏差:±0.05) 錳 Mn:0.15~0.40(允許偏差:+0.04)硫 S :≤0.030磷 P :≤0.030鉻 Cr:3.80~4.40(允許偏差:±0.05)鎳 Ni:允許殘余含量≤0.30銅 Cu:允許殘余含量≤0.25釩 V :1.75~2.20(允許偏差:±0.05)鉬 Mo:4.50~5.50(允許偏差:尺寸≤6,±0.05;尺寸>6,±0.10)鎢 W :5.50~6.75(允許偏差:尺寸≤10,±0.10;尺寸>10,±0.20)注:根據(jù)供需雙方協(xié)議,V的含量可為1.60~2.20