双色球201走势图



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  • 【HAOKAI】JINSHUGONGSIYOUZHIGONGYINGs136RUIDIANYISHENGBAIMOJUGANGCAI、s136YUANGANG、s136BANCAI,ZHUANYEJIEDAQIYONGTU,HUAXUECHENGFEN,PIFAJIAGE。

    S136钢塑胶外壳模具开裂失效分析

    时间:2019-02-21 08:51 来源:未知 点击:

      S136塑胶模具在工作过程中的受力和受热情况较复杂,在服役中容易产生开裂、疲劳、表面磨损和腐蚀等失效形式[‘es。生产实践证明,结构设计、材料的选用、成形与制造工艺、热处理工艺及表面强化是影响模具使用寿命的主要因素。136模具钢是改良的中碳高铬型马氏体不锈钢,钢材经过炉外精炼,再电渣重熔,材料组织纯洁细微,具有优良的防潮抗蚀性、镜面抛光性、耐磨性、淬透性和较好的韧性、延展性[3,,故适用于各种塑料模具。该钢在低温回火及抛光至镜面状态的时候,能表现出极高的耐腐蚀性[41,特别适宜制造与腐蚀介质接触的塑料模具。国产5136钢与我国GB/T 1220-2007新标准中牌号为40Cr13的不锈钢较接近,故国内模具市场上的40Cr13钢也常常被称为136钢,但两者在组分、热处理工艺、性能等方面却存在一定差别。 采用136钢制造的模具用于塑胶外壳的批量生产。该模具硬度要求为46一48 HRC,在进货后,经过机加工一去应力一表面抛光后投入试产。模具的正常加工寿命为50万次,而当模具试产不到6千件就发生开裂,给厂家造成了较大的经济损失。为此,笔者对136钢塑胶外壳模具开裂失效件,进行理化检验和分析。

      1、宏观检查

      SHIXIAOMOJUDEWAIGUANXINGZHUANGRUTU1SUOSHI,QIZHENGTIWAIXINGCHICUNWEIZHANG200 mmxKUAN150 mmxHOU60 mm,GONGZUOMIANYOUBANJING40 mmDE2GEBANYUANCHENKONG、ZHIJING16 mmDE5GEYUANXINGCHENKONGJIYIDUANTUTAIZUCHENG,CEMIANHANYOUDUOGEDAXIAOBUYIDEYUANKONG。KAILIEJIAOKUANCHUWEIYUTU1(a)SUOSHIDEMOJUTUMIANZHONGXINDEZHIJIAOTAIJIEGENBU。CICHULIEWENWANGLIANGCEERBUFANGXIANGJITAIJIECEMIANHENGXIANGYANZHANBINGSHOUZHAIXINGCHENGWEIBU。CONGMOJUZHIJIAOTAIJIEGENBUKAILIECHUCHUIZHIFANGXIANG、LIANGCEERBULIEWENCHUSHUIPINGFANGXIANGJITAIJIECEMIANLIEWENWEIBU4GEBUWEIQUYANG,JUTIWEIZHIJIANTU1(h)FANGKUANGBIAOJICHU,3(h)ZHISHICHU。QIZHONG1HAOYANGYONGYUHUAXUECHENGFENJIANCE、YINGDUCESHI、DUANKOUSAOMIAOHENENGPUCESHIFENXI,2,3HAOYANGZHUYAOYONGYUGUANCHAHEFENXILIEWENXINGCHENGJIKUOZHANGXINGMAO,4HAOYANGYONGYUXIANWEIZUZHIJIANCEHEFENXI〕


    图1 失效模具外观及取样部位

      CONGMOJUJIANYANTIGONGDE3DTUZHI(TU2)KEJIAN,ZAISUJIAOWAIQIAOMOJUTUMIANZHONGXINDEGENBUYOUYIZHIJIAOTAIJIE,ZAITAIJIEJIEHEMIANCHUMEIYOUSHEJIYUANJIAOGUODU,JICUNZAIYI“LIJIAO”。ZAIMOJUFUYISHI,MEICIHEMOMOJUTUMIANZHONGXINBUWEIDOUYAOCHENGSHOUCHOUXINHUAKUAIDECEXIANGCHONGJILI,YINERZAIZHIJIAOTAIJIEGENBUYIYUXINGCHENGJIAODADEYINGLIJIZHONG。ANZHAOMOJUDESHEJIGUIFAN,MOJUDEJIEGOUSHEJIYINGJINLIANGBIMIANCUNZAIJIANJIAOHEBANJINGGUOXIAODEYUANJIAO,YIFANGZHIZHUSUCHANPINCHANSHENGFENGLIBIAN,TONGSHIBIMIANMOJUMOSUNHEXINGCHENGYINGLIJIZHONG,YANZHANGMOJUSHOUMING。DANYIXIECHANGJIASHOUXIANYUJIAGONGTIAOJIANHUOWEILEJIANGDIJIAGONGRJIAODENANDU,JIEYUEMOJUJIAGONGDESHIJIANHECHENGBEN,WANGWANGCAIYONG“LIJIAO”。


    双色球201走势图 图2 模具结构设计

      RUTU3SUOSHIWEIMOJUSHIXIAOJIANGECHUKAILIEDEHONGGUANXINGMAO。YOUYUMOJUKAILIEHOUFANGZHISHIJIANJIAOZHANG,QIBIAOMIANFUGAIZHEHEHONGSEDEYANGHUAFUSHICENG。CONGTU3(a)KEJIANZHIJIAOTAIJIEGENBUDUANMIANCHENGXIANYINGLIJIZHONGKAILIEDEDUOYUANTAIJIE,BIAOMINGLIEWENYOUGAICHUKAISHIXINGCHENG,CHUBUTUIDUANWEIMOJUKAILIEDELIEWENYUAN。JULICICHUYUE8mmDEYOUCESEZEJIAOSHENCHU,CHUXIANDIERCIDUOYUANTAIJIE,BINGCHENGXIANFANGSHEZHUANGKUAISUKUOZHANTIAOWEN。YUGAIDUANMIANPIPEIDEDUANKOUSHIYANG(1HAOYANG)XIANSHI,DUANMIANCHENGYUANHUZHUANGBINGXIANGXIAWANQU。TONGSHITU3(c) ,(d)SUOSHIMOJULIANGCEERBUKAILIEDEDUANKOUYEDOUQINGXIKEJIANPILAOHUXIAN、ERCITAIJIEHEFANGSHEZHUANGTIAOWEN。PILAOHUXIANYIBANWEIMOJUFUYISHIZAIHEXUNHUANERCHANSHENG。LIEWENTAIJIESHILIEWENQIANJINSHIYUDAODEZULIBUTONG,KUOZHANFANGXIANGPIANLIERZAIBUTONGDUANLIEMIANXIANGJIAOERXINGCHENG。YICIPILAOTAIJIEXINGCHENGYUPILAOYUANQU,ERCIPILAOTAIJIEZECHANSHENGYULIEWENKUOZHANQU,CHENGFANGSHEZHUANGSHEXIAN,BINGYUPILAOHUXIANXIANGCHUIZHI。YOUCITUIDUANLIEWENSHOUXIANZAIZHIJIAOTAIJIEGENBUMENGSHENG,ZHUJIANZHUANWEIHUXINGDEPILAOTUIJINXIAN,JIXUXIANGMOJUZHONGXINJIZUOYOULIANGCEFANGXIANGKUOZHAN。DANGPILAOLIEWENKUOZHANDAOYIDINGCHENGDU,DUANMIANDEQIANGDUJIJUJIANGDI,YINGLIJIZHONGXIANZHUZENGDA,ZAOCHENGERCITAIJIEDEYINGLIJIZHONGKAILIE,BINGSHIDUANKOUCHENGFANGSHEZHUANGKUAISUKUOZHAN。


    图3 失效模具断面的宏观样貌

      2、检验结果与讨论

      2.1HUAXUECHENGFENFENXI

      CAIYONGDEGUONIUJINFOUNDRY-MASTER PROZHIDUGUANGPUYI,YIJUGB/T 1299-2014《GONGMOJUGANG》DUICONGMOJUZHIJIAOTAIJIEGENBULIEWENYUANCHUJIEQUDESHIYANG(1HAOYANG)JINXINGHUAXUECHENGFENJIANCE。CANKAORUIDIANYISHENGBAIGANGTIEGONGSIDE5136GANGCHENGFENBIAOZHUNHEGB/T1220 -2007《BUXIUGANGBANG》DEGUIFANYAOQIU,JIANCEJIEGUOJIANBIAO1SUOSHI。TONGGUODUIBIKEZHI,SHIXIAOMOJUDEHUAXUECHENGFENHANLIANGFUHEGBBIAOZHUN40Cr13GANGDEZHIBIAOYAOQIU,DANYURUIDIANYISHENGBAITIGONGDE5136GANGBIAOZHUNXIANGBI,CUNZAIYIDINGPIANCHA,YOUQISHISiDEHANLIANGPIANDI。

    双色球201走势图   2.2BIAOMIANYINGDUJIANCE

    双色球201走势图   ZAI1HAOYANGSHANGBUTONGBUWEIJUNYUNXUANQU5GECESHIDIAN,CAIYONGAODILIONESS Q150RQUANZIDONGSHUXIANLUOSHIYINGDUJIJINXINGYINGDUCESHI。JIANCEJIEGUOJIANBIAO2SUOSHI,BIAOMINGCAILIAOYINGDUJIAOJUNYUN,SHICEYINGDUZHIFUHEKEHUYAOQIU。

    双色球201走势图   2.3DUANKOUJIXIANWEIZUZHIFENXI

      CAIYONGDEGUOCAISISIGMA 300SAOMIAODIANZIXIANWEIJINGDUIMOJUTUMIANZHONGXINZHIJIAOTAIJIEGENBUDELIJIAOCHU(1HAOYANG)DUANKOUJINXINGGUANCHA。CONGTU4(a)KEJIANDUANKOUCHENGXIANDUOYUANTAIJIETIAOWENHEERCILIEWEN。DUOYUANTIAOWENTIXIANYINGLIJIZHONGKAILIETEZHENG,KEJINYIBUQUERENGAIQUYUWEIDUANKOUQISHIDECEYUANDI。ERCILIEWENXINGCHENGYUMOJUFUYISHIXUNHUANZAIHEZUOYONGXIADEDUOCIZUZHIFENLIE,SHIPILAODUANLIEDEDIANXINGXINGMAOTEZHENG。DUANMIANCHENGXIJINGZHUANGZUZHI,BIAOMINGCAILIAOCUIXINGJIAODA。LIEWENKUOZHANDEZHONGDUANQU,DUANKOUCHENGCUDAFANGSHEZHUANGTIAOWEN。ZAIFANGSHEZHUANGTIAOWENJIANTONGYANGCUNZAIERCILIEWEN,JINYIBUBIAOMINGCAILIAOCUIXINGDARUTU4(h)。SAOMIAODIANJINGBEILVJINGFANGDA,DUANKOUDUOYUANTAIJIEDEQISHIQUJIFANGSHEZHUANGTIAOWENDEZHONGDUANQU,DOUCHENGXIANYANJINGKAILIEDETEZHENGXINGMAO,BIAOMINGCAILIAOQIANGDUDIQIECUIXINGDA,BINGYANJIEMIANCUNZAICUIXINGDIERXIANGZUZHI。YOUYUMOJUKAILIEHOUFANGZHISHIJIANJIAOZHANG,YANJINGDUANKOUBIAOMIANBUMANLEDALIANGDIANHUAXUEFUSHICHANWURUTU4(c)、(d)

    双色球201走势图   DUIDUANKOUYANJINGBIAOMIANZUZHIJIKELIZHUANGDIERXIANGZUZHIJINXINGWEIQUNENGPUCESHI。PUTU1QUYUWEIDUANKOUYANJINGBIAOMIANZUZHIRUTU5(a),PUTU2QUYUWEIKELIZHUANGDIERXIANGZUZHIRUTU5W。CONGTUs }b}SUOSHIDENENGPUCESHIJIEGUOBIAOMING,DUANKOUYANJINGBIAOMIANHANYOUC,O,F。DENGHEJINYUANSU,TISHIHANGAOYANGGAOTIEDECHENGFEN,BIAOMINGDUANKOUBIAOMIANFUGAIYICENGJIAOHOUDEYANGHUAWU。TUs(d)SUOSHIDEPUTUXIANSHIKELIZHUANGDIERXIANGZUZHIHANYOUC,Cr,FeDENGHEJINYUANSU,KELIZHIJINGYUEQIAO}.},m,TISHIGAOTANGAOGEGAOTIEDECHENGFEN,SHUOMINGDIERXIANGZUZHIWEICr,FeGOUCHENGDEKELIZHUANGTANHUAWU

    双色球201走势图   CONGCAILIAODEZUZHIJIANYANKEJIAN,ZUZHIFENBUBUJUNYUN、TANHUAWUKELICUDA,FANYINGCAILIAODUANZAOJIRECHULIGONGYIQIANGUIFAN。YOUYUGANGCAIWEICr13XINGMASHITIBUXIUGANG,YIBANZAIDIWENHUIHUOMASHITIHUOGAOWENHUIHUOSUOSHITIZHUANGTAIXIASHIYONG,SHIC:GURONGYUJITIZUZHIZHONG,YIHUODEYOULIANGDENAISHIXING[z}。ERYINFUCrTANHUAWUJUJI,YIZHISHIJITIPINCr,CAILIAODENAIFUSHIXINGBIANCHA,BIAO3WEINENGPUCESHIJIEGUOBIAO、JIANGLIEWENWEIBUJIEQUDEYANGJIAN(4HAOYANG)XIANGQIANHOUZHICHENGJINXIANGSHIYANG,JING4%XIAOSUANJIUJINGQINSHIHOU,KEGUANCHADAOSHIYANGBIAOMIANCHENGXIANDALISHIHUAWENRUTU6,BIAOMINGCAILIAOZUZHIPIANXIJIAOYANZHONG。

      DUI4HAOYANGJINXIANGSHIYANGJINSHIMIANJINXINGSAOMIAODIANJINGJIANCE,LIEWENDEWEIBUCHENGXIANQUZHEDEYANJINGKAILIETEZHENG,ZAILIEWENLIANGCECUNZAIYANJINGKAILIEDEERCILIEWENRUTU7(a)。JITIZUZHIZHONGBUMANKELIZHUANGTANHUAWU,LIEWENYANSHENCHUCHENGFENGBIZHUANGDEYANJINGKAILIE。TU7}h)SUOSHIZHONGJIANYIKUAIJIAODAJINGLIYIXINGCHENGTUQI,XIANSHICUIXINGBOLUOXINGTAI。YANJINGLIDESANJIAOJIAOJIECHU,YANJINGJIEXICHUBOPIANZHUANGTANHUAWU,ZHEISHIWANGZHUANGTANHUAWUJINGGAOWENGURONGJIANBOHOUDECANLIUZUZHI,DUICAILIAODEXINGNENGYINGXIANGJIDA,JIYIZAOCHENGZUZHIDEYANJINGKAILIERUTU7(c)。ZAITANHUAWUDAIZHUANGFENBUQUYU,DALIANGDEKELIZHUANGTANHUAWUJUJI,QIEKELITANHUAWUDEYUANZHENGDUBUJIA。ZAITU7(d)SUOSHIYANKELIZHUANGTANHUAWUZHOUWEI,XINGCHENGZHANGTIAOZHUANGFENBUDELIANZHUANG、WANGZHUANGTANHUAWU。CANKAOGB /T 18254-2002《GAOTANGEZHOUCHENGGANG》,DUIWANGZHUANGTANHUAWUDEJIBIEPINGDINGWEI>2JI。GENJUXIANWEIZUZHIKETUIDUAN,MOJUGANGZHUTAIZUZHIZHONGCUNZAIDALIANGGONGJINGTANHUAWU,DUANZAOMEIYOUXIAOCHULIANZHUANGJIWANGZHUANGGONGJINGTANHUAWU。JINGJIEJIEHELIYINYANJINGJIEXICHUDETANHUAWUERJIANGDI,ZENGJIALEDAIZHUANG、WANGZHUANGTANHUAWUFUJINMENGSHENGWEILIEWENDEQINGXIANG[6es〕

      (a)YANJINGLIEWEN(500 X )

    双色球201走势图   (b)YANJINGLIEWEN(1000 X )

      (c)BOPIANTANHUAWU(5000 X )

    双色球201走势图   (d)LIANZHUANGTANHUAWU(2000 X )

      

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      WEIBUKUOZHANDELIEWENHENGCHUANMIJIDETIAODAI,CHENGGANGZHIDEKUOZHANXINGMAO。JINXIANGXIANWEIJINGBEILVFANGDAZHIZoo,YOUTU9(}>,(a>KEJIANLAZHANGDETIAODAIYOUXIXIAOKELIZHUANGTANHUAWUZUCHENG,XINGCHENGRUOGANTIAOKUANZHAIBUYIDEDAIZHUANGTANHUAWU。YANZHONGDEDAIZHUANGTANHUAWU,KESHICAILIAODEHENGXIANGKANGLAQIANGDUXIANZHUJIANGDI,XINGCHENGSHANGSHUHENGXIANGKAILIE。TONGSHIYANTANHUAWUTIAOJIANYINGLIFENBUBUJUNYUN,ZAIRECHULIGUOCHENGZHONGJIYIZAOCHENGCAILIAODEBIANXINGHEKAILIE。YOUYUYANZHONGDEDAIZHUANGTANHUAWU,SHIJITIZUZHIZHONGHEJINYUANSUXIANZHUJIANGDI。ZAIJIAREGUOCHENGZHONGJINGLIJIYICUHUA,YINCIYANDAIZHUANGTANHUAWUTIAOJIANXINGCHENGLETU9(e)SUOSHIDECUZHENZHUANGHUIHUOMASHITI。JINGLICUHUADAILAICUIHUOYINGLIZENGDA,JINGJIEJIAKUANCUSHIJINGJIANQIANGDUJIANGDI,ZAOCHENGLECAILIAODEYANJINGKAILIENEILIEWENRUTU9(f>。ZHEIYUTU7SUOSHIDESAOMIAODIANJINGJIANCEJIEGUOSHIYIZHIDE。YOUCIKEPANDINGLIEWENSHIYOUYUYANZHONGDEDAIZHUANG、WANGZHUANGTANHUAWUPIANXISHICAILIAOQIANGDUJIANGDI,CUIXINGZENGJIADAOZHI

      3、结论

      (1)MOJUKAILIEDEZHUYAOYUANYIN,SHIYOUYUSHOUCHONGJILIDEZHIJIAOTAIJIECHUSHEJISHANGWURJIAO,ZAOCHENGGAICHUYINGLIJIZHONGQINGXIANGYANZHONG,XINGCHENGDUOYUANTAIJIELIEWENYUAN,LIEWENJINYIBUXINGCHENGPILAOKUOZHAN。DANGPILAOLIEWENKUOZHANDAOYIDINGCHENGDU,DUANMIANDEQIANGDUJIJUJIANGDI,YINGLIJIZHONGXIANZHUZENGDA,XINGCHENGERCITAIJIEDEYINGLIJIZHONGKAILIE,BINGSHILIEWENCHENGFANGSHEZHUANGXIANGMOJUXINBUJILIANGCEKUAISUKUOZHAN,ZUIHOUZAILIANGCEERBUDEWAIBIAOMIANKAILIE。

      (3)MOJUGANGCAILIAOZHONGC,CrPIANXIYANZHONG。FUCrTANHUAWUDEXICHU,JIANGDILEGANGDENAISHIXING,SHIMOJUBIAOMIANCHUXIANDIANHUAXUEFUSHI。TONGSHIDAIZHUANGTANHUAWUYANZHONG,SHITIAOJIANYINGLIFENBUBUJUNYUN,JIANGDILECAILIAODEHENGXIANGKANGLAQIANGDU,SHICAILIAODIKANGLIEWENMENGSHENGHEKUOZHANDENENGLIRUOHUA。DAIZHUANGTANHUAWUZHONGDEBOPIANZHUANGJIWANGZHUANGTANHUAWU,YIJIDAIZHUANGTANHUAWUTIAOJIANDECUZHENZHUANGHUIHUOMASHITI,ZENGJIALECAILIAODEQUEKOUMINGANXING,CUSHICAILIAOZUZHICHANSHENGYANJINGKAILIE,JIASULIEWENDEXINGCHENGHEKUOZHAN〕

      4、改进建议

    双色球201走势图   (1)JINYIBUGAISHANMOJUGANGZAIYAZHIHEDUANZAOSHIDEZUZHIJUNYUNXING,BAOZHENGCAILIAODEQIANGRENXING。YOUYUGANGZHONGZHONGGEHANLIANGGAO,BIANXINGYINGLIDA,ZAIGANGDINGYAZHISHI,XUQUEBAOJUNRELUJIARESHINEIWAIBUGANGWENJUNYUN,KONGZHIHAOGAOWENDUANJUNRESHIJIAN,LIYONGGAOWENKUOSANGAISHANCHENGFENPIANXI。DUANZAOSHIKONGZHIHAOJIAREWENDUHEBAOWENSHIJIAN,KECAIYONGDADUNWEIDUANCHUISHIZHUZAOZUZHIBIANXINGCHONGFEN,YIPOSUIDAIZHUANG、LIANZHUANGJIWANGZHUANGTANHUAWU,YOUHUADUANHOUQIUHUATUIHUOGONGYI,GAISHANTANHUAWUDEYUANZHENGDUHELIJINGFENBUDEJUNYUNXING,SHITANHUAWUCHENGXIYUANKELIZHUANGJUNYUNFENBU。

      (2)S136MOJUSHEJIGUOCHENGZHONG,YINGGAIKAOLVSHOULIBUWEIDEYINGLIJIZHONGZHUANGTAI。TEBIESHIMOJUCHENGSHOUCHONGJIZAIHESHI,YINGLIJIZHONGGENGWEITUCHU,YINGZAIZHIJIAOTAIJIECHUJIAGUODUYUANJIAO。CIWAI,ZAIKAOLVJIAGONGGONGYIDETONGSHI,YINGJINLIANGBIMIANJIANJIAO、YUANJIAOBANJINGGUOXIAO、AOCAO、ZHAICAO、JIEMIANTUBIAN、KONGWEIBUDANGDENGRONGYICHANSHENGYINGLIJIZHONGGUODADEJIEGOU,BIMIANZAOCHENGMOJUKAILIE。〕

    

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