PHASE METRICS 040646001 ERROR PROCESSOR VMEBUS MODULE W/ SINGLE INTERFACE (USED)
PHASE METRICS 040646001 ERROR PROCESSOR VMEBUS MODULE W/ SINGLE INTERFACE (USED)
3澆注及冷卻系統(tǒng)模具在臥式3.汰壓鑄機(jī)上使用,經(jīng)校核,其額定鎖模力能滿足要求,根據(jù)壓鑄機(jī)沿及鑄件拄量計(jì)算,壓室直徑選取乃=杏2鋁液由定模鑲塊分成2股4流橫澆道26,以避免直沖入型腔,待橫澆道填滿后,通過環(huán)形內(nèi)澆口填充型腔,內(nèi)澆口設(shè)成環(huán)形,厚度為23.5肌民設(shè)為23.澆口截面積的計(jì)算公式為Q鑄件用錯(cuò)質(zhì)量,I鍆液的密度把V內(nèi)澆口處金屬液的流速,2003OOrms T允填型腔的時(shí)間,0.0540.08中間分別設(shè)計(jì)凸臺(tái)與凹孔。為了簡(jiǎn)化方便加工,將產(chǎn)品方形線盒處設(shè)計(jì)成動(dòng)模活動(dòng)鑲件22.在加工工藝方面為了保證產(chǎn)品尺寸要求,減少熱處理變形度達(dá)到4448阢后,由鉗工配裝各滑塊鑲塊,固定后起車型腔。

W4記模壤塊由于采用上述燒道,金屬液沿型壁充填,流動(dòng)順暢,避免了正面沖擊型芯。在金屬填充之末,動(dòng)定模鑲塊及左滑塊鑲塊各設(shè)置大環(huán)形溢流梢27,接收流入型腔和流經(jīng)型腔面己經(jīng)冷卻的金屬液,收集被金屬液擠壓流動(dòng)前沿的空氣氣體混合物,同時(shí)改善模具熱平衡狀態(tài)。再加上通過各滑塊鑄件流痕冷隔澆不足的現(xiàn)象,從而保證產(chǎn)品成型質(zhì)量,得到密度高的產(chǎn)品。
保證壓鑄模合理的冷卻,提高壓鑄生產(chǎn)率,在各鑲塊及澆口套中設(shè)置了合理的冷卻通道。如果壓鑄模溫度太低,鑄件就會(huì)形成不光潔的所謂花紋友肌此外如果在抽咽芯之前鑄件由于吒鑄模溫度過低,則在熱裂敏感的壓鑄材料上就會(huì)形成收縮裂紋。如果壓鑄模溫度太高,壓鑄材料就會(huì)粘結(jié)在模壁。沾動(dòng)部件被坫住,鑄件輪廓尺寸由于熱膨脹發(fā)卞貨化。產(chǎn)品尺超乾,本模幾的冷卻采用油冷溫?fù)幌到y(tǒng),在壓鑄過程中梭具保持在恒定的溫度范圍內(nèi),般模具工作溫度范圍為80220經(jīng)過實(shí)踐證明,模具采用溫控系統(tǒng),產(chǎn)品質(zhì)量穩(wěn)定,成品率,延長(zhǎng)了梭具的使用命4模具主要零件的設(shè)計(jì)與加工產(chǎn)內(nèi)孔伽型芯由上滑塊鑲塊之。
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