(?) (?)注(Zhu)塑(Su)机(Ji)机(Ji)筒(Tong)是(Shi)注(Zhu)塑(Su)成(Cheng)型(Xing)机(Ji)中(Zhong)的(De)一(Yi)个(Ge)重(Zhong)要(Yao)部(Bu)件(Jian),(?)通(Tong)常(Chang)由(You)机(Ji)筒(Tong)、(?)机(Ji)筒(Tong)加(Jia)热(Re)器(Qi)、(?)螺(Luo)杆(Gan)和(He)喷(Pen)嘴(Zui)等(Deng)组(Zu)成(Cheng)。(?)机(Ji)筒(Tong)是(Shi)一(Yi)个(Ge)圆(Yuan)筒(Tong)形(Xing)的(De)金(Jin)属(Shu)部(Bu)件(Jian),(?)其(Qi)内(Nei)部(Bu)装(Zhuang)有(You)螺(Luo)杆(Gan),(?)用(Yong)于(Yu)将(Jiang)塑(Su)料(Liao)颗(Ke)粒(Li)加(Jia)热(Re)、(?)熔(Rong)化(Hua)和(He)挤(Ji)压(Ya),(?)最(Zui)终(Zhong)将(Jiang)熔(Rong)融(Rong)的(De)塑(Su)料(Liao)注(Zhu)入(Ru)模(Mo)具(Ju)中(Zhong)进(Jin)行(Xing)成(Cheng)型(Xing)。(?)机(Ji)筒(Tong)加(Jia)热(Re)器(Qi)用(Yong)于(Yu)加(Jia)热(Re)机(Ji)筒(Tong),(?)以(Yi)保(Bao)持(Chi)塑(Su)料(Liao)在(Zai)熔(Rong)融(Rong)状(Zhuang)态(Tai)。(?)螺(Luo)杆(Gan)是(Shi)机(Ji)筒(Tong)内(Nei)的(De)关(Guan)键(Jian)零(Ling)件(Jian),(?)通(Tong)过(Guo)旋(Xuan)转(Zhuan)运(Yun)动(Dong)将(Jiang)塑(Su)料(Liao)颗(Ke)粒(Li)从(Cong)机(Ji)筒(Tong)尾(Wei)部(Bu)输(Shu)送(Song)至(Zhi)喷(Pen)嘴(Zui)。(?)喷(Pen)嘴(Zui)则(Ze)负(Fu)责(Ze)将(Jiang)熔(Rong)融(Rong)的(De)塑(Su)料(Liao)均(Jun)匀(Yun)注(Zhu)入(Ru)模(Mo)具(Ju)中(Zhong),(?)形(Xing)成(Cheng)成(Cheng)型(Xing)品(Pin)。(?) (?) (?)机(Ji)筒(Tong)的(De)设(She)计(Ji)和(He)材(Cai)质(Zhi)对(Dui)注(Zhu)塑(Su)成(Cheng)型(Xing)的(De)质(Zhi)量(Liang)和(He)效(Xiao)率(Lu)具(Ju)有(You)重(Zhong)要(Yao)影(Ying)响(Xiang),(?)而(?)机(Ji)筒(Tong)加(Jia)热(Re)器(Qi)的(De)控(Kong)制(Zhi)稳(Wen)定(Ding)性(Xing)和(He)螺(Luo)杆(Gan)的(De)设(She)计(Ji)参(Can)数(Shu)也(Ye)决(Jue)定(Ding)了(Liao)成(Cheng)型(Xing)过(Guo)程(Cheng)中(Zhong)的(De)塑(Su)料(Liao)熔(Rong)融(Rong)和(He)注(Zhu)入(Ru)效(Xiao)果(Guo)。(?)因(Yin)此(Ci),(?)合(He)理(Li)选(Xuan)择(Ze)和(He)维(Wei)护(Hu)注(Zhu)塑(Su)机(Ji)机(Ji)筒(Tong)是(Shi)保(Bao)证(Zheng)注(Zhu)塑(Su)成(Cheng)型(Xing)质(Zhi)量(Liang)和(He)生(Sheng)产(Chan)效(Xiao)率(Lu)的(De)关(Guan)键(Jian)之(Zhi)一(Yi)。(?) (?) (?)注(Zhu)塑(Su)机(Ji)机(Ji)筒(Tong)设(She)计(Ji)原(Yuan)理(Li):(?)
(?) (?)销(Xiao)钉(Ding)螺(Luo)杆(Gan)的(De)主(Zhu)体(Ti)部(Bu)分(Fen)是(Shi)普(Pu)通(Tong)的(De)螺(Luo)杆(Gan),(?)销(Xiao)钉(Ding)可(Ke)设(She)置(Zhi)在(Zai)螺(Luo)杆(Gan)的(De)熔(Rong)融(Rong)段(Duan)或(Huo)计(Ji)量(Liang)段(Duan)的(De)落(Luo)槽(Cao)内(Nei)或(Huo)计(Ji)量(Liang)段(Duan)末(Mo)无(Wu)螺(Luo)槽(Cao)的(De)光(Guang)滑(Hua)圆(Yuan)柱(Zhu)形(Xing)表(Biao)面(Mian)。(?)销(Xiao)钉(Ding)按(An)一(Yi)定(Ding)的(De)排(Pai)列(Lie)方(Fang)式(Shi)设(She)置(Zhi),(?)可(Ke)疏(Shu)密(Mi)程(Cheng)度(Du)不(Bu)等(Deng),(?)数(Shu)量(Liang)不(Bu)等(Deng)。(?)圆(Yuan)柱(Zhu)形(Xing)的(De)销(Xiao)钉(Ding)是(Shi)将(Jiang)销(Xiao)钉(Ding)装(Zhuang)配(Pei)到(Dao)螺(Luo)杆(Gan)的(De)孔(Kong)中(Zhong)形(Xing)成(Cheng)的(De);(?)方(Fang)形(Xing)或(Huo)菱(Ling)形(Xing)销(Xiao)钉(Ding)是(Shi)直(Zhi)接(Jie)在(Zai)螺(Luo)杆(Gan)上(Shang)铣(Xi)销(Xiao)形(Xing)成(Cheng)的(De)。(?) (?) (?)如(Ru)果(Guo)这(Zhe)些(Xie)销(Xiao)钉(Ding)是(Shi)在(Zai)设(She)置(Zhi)在(Zai)熔(Rong)融(Rong)区(Qu),(?)销(Xiao)钉(Ding)可(Ke)将(Jiang)固(Gu)体(Ti)床(Chuang)打(Da)碎(Sui),(?)破(Po)坏(Huai)两(Liang)相(Xiang)流(Liu)动(Dong),(?)把(Ba)固(Gu)、(?)液(Ye)相(Xiang)搅(Jiao)在(Zai)一(Yi)起(Qi),(?)使(Shi)末(Mo)溶(Rong)固(Gu)相(Xiang)碎(Sui)块(Kuai)与(Yu)已(Yi)容(Rong)物(Wu)料(Liao)的(De)接(Jie)触(Chu)面(Mian)积(Ji)加(Jia)大(Da),(?)促(Cu)进(Jin)熔(Rong)融(Rong)。(?)如(Ru)果(Guo)销(Xiao)钉(Ding)是(Shi)设(She)置(Zhi)在(Zai)熔(Rong)体(Ti)输(Shu)送(Song)区(Qu),(?)则(Ze)其(Qi)主(Zhu)要(Yao)作(Zuo)用(Yong)是(Shi)分(Fen)割(Ge)料(Liao)流(Liu),(?)增(Zeng)加(Jia)界(Jie)面(Mian),(?)改(Gai)变(Bian)料(Liao)流(Liu)的(De)方(Fang)向(Xiang),(?)使(Shi)流(Liu)束(Shu)重(Zhong)新(Xin)排(Pai)列(Lie)。(?)多(Duo)次(Ci)分(Fen)流(Liu)、(?)汇(Hui)合(He),(?)改(Gai)变(Bian)流(Liu)动(Dong)方(Fang)向(Xiang),(?)使(Shi)熔(Rong)体(Ti)组(Zu)分(Fen)与(Yu)温(Wen)度(Du)均(Jun)化(Hua)。(?) (?) (?)混(Hun)合(He)段(Duan)均(Jun)为(Wei)设(She)置(Zhi)在(Zai)普(Pu)通(Tong)螺(Luo)杆(Gan)均(Jun)化(Hua)段(Duan)末(Mo)端(Duan)的(De)向(Xiang)内(Nei)开(Kai)槽(Cao)结(Jie)构(Gou),(?)其(Qi)外(Wai)径(Jing)与(Yu)螺(Luo)杆(Gan)外(Wai)径(Jing)相(Xiang)等(Deng)。(?)沟(Gou)槽(Cao)分(Fen)为(Wei)若(Ruo)干(Gan)组(Zu),(?)每(Mei)组(Zu)之(Zhi)间(Jian)是(Shi)物(Wu)料(Liao)的(De)汇(Hui)合(He)区(Qu)。(?)物(Wu)料(Liao)被(Bei)沟(Gou)槽(Cao)分(Fen)割(Ge),(?)到(Dao)汇(Hui)合(He)区(Qu)汇(Hui)会(Hui),(?)再(Zai)分(Fen)割(Ge)、(?)汇(Hui)合(He),(?)其(Qi)原(Yuan)理(Li)是(Shi)销(Xiao)钉(Ding)式(Shi)类(Lei)似(Si)的(De)。(?) (?) (?)分(Fen)离(Li)型(Xing)螺(Luo)杆(Gan)的(De)特(Te)点(Dian)是(Shi)熔(Rong)融(Rong)段(Duan)上(Shang)除(Chu)了(Liao)有(You)原(Yuan)来(Lai)的(De)一(Yi)条(Tiao)螺(Luo)丝(Si)纹(Wen)(称(Cheng)为(Wei)主(Zhu)螺(Luo)杆(Gan))外(Wai),(?)还(Huan)附(Fu)加(Jia)了(Liao)一(Yi)条(Tiao)螺(Luo)纹(Wen)(称(Cheng)为(Wei)附(Fu)加(Jia)螺(Luo)纹(Wen)),(?)其(Qi)外(Wai)径(Jing)略(Lue)小(Xiao)于(Yu)主(Zhu)螺(Luo)纹(Wen)外(Wai)径(Jing),(?)主(Zhu)副(Fu)纹(Wen)的(De)导(Dao)程(Cheng)不(Bu)同(Tong),(?)副(Fu)螺(Luo)纹(Wen)自(Zi)加(Jia)料(Liao)段(Duan)末(Mo)端(Duan)开(Kai)始(Shi)(并(Bing)在(Zai)此(Ci)与(Yu)加(Jia)料(Liao)段(Duan)相(Xiang)联(Lian)),(?)经(Jing)过(Guo)几(Ji)个(Ge)螺(Luo)纹(Wen)后(Hou),(?)逐(Zhu)渐(Jian)与(Yu)均(Jun)化(Hua)段(Duan)的(De)主(Zhu)螺(Luo)纹(Wen)相(Xiang)交(Jiao)。(?) (?) (?)这(Zhe)种(Zhong)螺(Luo)杆(Gan)的(De)螺(Luo)槽(Cao)深(Shen)度(Du)和(He)螺(Luo)纹(Wen)导(Dao)程(Cheng)从(Cong)加(Jia)料(Liao)段(Duan)开(Kai)始(Shi)至(Zhi)均(Jun)化(Hua)末(Mo)端(Duan)都(Du)是(Shi)逐(Zhu)步(Bu)变(Bian)化(Hua)的(De),(?)既(Ji)螺(Luo)纹(Wen)导(Dao)程(Cheng)从(Cong)宽(Kuan)逐(Zhu)渐(Jian)变(Bian)窄(Zhai),(?)螺(Luo)槽(Cao)深(Shen)度(Du)由(You)深(Shen)度(Du)逐(Zhu)渐(Jian)变(Bian)浅(Qian),(?)可(Ke)使(Shi)物(Wu)料(Liao)得(De)到(Dao)大(Da)的(De)压(Ya)缩(Suo)。(?) (?) (?)注(Zhu)塑(Su)机(Ji)机(Ji)筒(Tong)材(Cai)料(Liao)和(He)工(Gong)艺(Yi):(?) (?) 1、(?)优(You)质(Zhi)双(Shuang)相(Xiang)不(Bu)锈(Xiu)钢(Gang) (?) (?)2、(?)优(You)质(Zhi)粉(Fen)末(Mo)冶(Ye)金(Jin)材(Cai)料(Liao)
(?) (?)3、(?)冷(Leng)、(?)热(Re)喷(Pen)涂(Tu)硬(Ying)金(Jin)属(Shu)工(Gong)艺(Yi)
(?) (?)4、(?)先(Xian)进(Jin)渗(Shen)氮(Dan)技(Ji)术(Shu)
(?) (?)机(Ji)筒(Tong)技(Ji)术(Shu)指(Zhi)标(Biao)
氮(Dan)化(Hua)层(Ceng)深(Shen)度(Du) | 0.5-0.8mm | 氮(Dan)化(Hua)硬(Ying)度(Du) | 950-1020Hv | 氮(Dan)化(Hua)脆(Cui)度(Du) | < = 一(Yi)级(Ji) | 表(Biao)面(Mian)粗(Cu)糙(Cao)度(Du) | Ra 0.4um | 直(Zhi)线(Xian)度(Du) | 0.0015mm | 双(Shuang)合(He)金(Jin)硬(Ying)度(Du) | >3mm 优(You)质(Zhi)38CrMoAlA | (?) (?)加(Jia)工(Gong)制(Zhi)造(Zao)工(Gong)艺(Yi)
加(Jia)工(Gong)规(Gui)格(Ge) | zui小(Xiao)内(Nei)孔(Kong)Φ14,(?)zui大(Da)Φ300X8000mm | 原(Yuan)材(Cai)料(Liao) | 38CrMoAlA(SACM645)、(?)双(Shuang)金(Jin)属(Shu) | 表(Biao)面(Mian)粗(Cu)糙(Cao)度(Du) | Ra0.4μm | 直(Zhi)线(Xian)度(Du) | 0.015mm/m | 氮(Dan)化(Hua)处(Chu)理(Li) | 表(Biao)面(Mian)硬(Ying)度(Du)>1000HV;(?)深(Shen)度(Du):(?)0.5~0.8mm;(?)氮(Dan)化(Hua)脆(Cui)性(Xing)≤2级(Ji) |
(?) (?)注(Zhu)塑(Su)机(Ji)机(Ji)筒(Tong)日(Ri)常(Chang)维(Wei)护(Hu):(?) (?) (?)1、(?)螺(Luo)杆(Gan)未(Wei)达(Da)到(Dao)预(Yu)调(Diao)温(Wen)度(Du)时(Shi),(?)切(Qie)勿(Wu)启(Qi)动(Dong)机(Ji)器(Qi)。(?)
(?) (?)2、(?)防(Fang)止(Zhi)金(Jin)属(Shu)碎(Sui)片(Pian)及(Ji)杂(Za)物(Wu)落(Luo)入(Ru)料(Liao)斗(Dou),(?)若(Ruo)加(Jia)工(Gong)回(Hui)收(Shou)料(Liao),(?)便(Bian)需(Xu)加(Jia)上(Shang)磁(Ci)性(Xing)料(Liao)斗(Dou)以(Yi)防(Fang)止(Zhi)铁(Tie)屑(Xie)等(Deng)进(Jin)入(Ru)料(Liao)筒(Tong)。(?)
(?) (?)3、(?)使(Shi)用(Yong)防(Fang)涎(Xian)时(Shi)要(Yao)确(Que)定(Ding)料(Liao)筒(Tong)内(Nei)塑(Su)料(Liao)*熔(Rong)融(Rong),(?)以(Yi)免(Mian)螺(Luo)杆(Gan)后(Hou)退(Tui)时(Shi)损(Sun)坏(Huai)传(Chuan)动(Dong)系(Xi)统(Tong)零(Ling)件(Jian)。(?)
(?) (?)4、(?)使(Shi)用(Yong)新(Xin)塑(Su)料(Liao)时(Shi),(?)应(Ying)把(Ba)螺(Luo)杆(Gan)的(De)余(Yu)料(Liao)清(Qing)洗(Xi)干(Gan)净(Jing)。(?)
(?) (?)5、(?)当(Dang)熔(Rong)融(Rong)塑(Su)料(Liao)温(Wen)度(Du)正(Zheng)常(Chang)但(Dan)又(You)不(Bu)断(Duan)发(Fa)现(Xian)熔(Rong)融(Rong)塑(Su)料(Liao)出(Chu)现(Xian)黑(Hei)点(Dian)或(Huo)变(Bian)色(Se)时(Shi),(?)应(Ying)检(Jian)查(Cha)胶(Jiao)螺(Luo)。(?)
(?) (?)6、(?)在(Zai)加(Jia)工(Gong)时(Shi),(?)尽(Jin)量(Liang)使(Shi)物(Wu)料(Liao)塑(Su)化(Hua)均(Jun)匀(Yun),(?)不(Bu)要(Yao)让(Rang)金(Jin)属(Shu)异(Yi)物(Wu)混(Hun)入(Ru)料(Liao)中(Zhong),(?)减(Jian)少(Shao)螺(Luo)杆(Gan)转(Zhuan)动(Dong)扭(Niu)矩(Ju)力(Li)。(?) 产(Chan)品(Pin)图(Tu)片(Pian)

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