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塑料模具專業(yè)英語(yǔ)ppt課件(存儲(chǔ)版)

  

【正文】 draws from the part, and the ejection process is concluded. 當(dāng)開(kāi)模動(dòng)作繼續(xù)進(jìn)行時(shí), 頂料桿 12 的桿頭 推動(dòng) 模具的推出機(jī)構(gòu),使 動(dòng)模座板 14和 分型套 13停止。 Sequence [‘si:kw?ns]連續(xù)動(dòng)作 。 Unit One Mold Constructions As the sprue 3 is held captive by the in the retainer pin 4, the part is severed from the sprue, which stays on the fixed half. When the head of the bolt 5 catches the sprue stripping plate 6, this is moved forward, thereby stripping the sprue from the retaining pin 4. 模具結(jié)構(gòu) 直澆道 3被 固定銷 4中的 下陷 所 約束 。 Constructed [k?n‘str?kt] 建造 ,構(gòu)成,設(shè)計(jì); principle[‘prins?pl]原則 。 8— 導(dǎo)軌 。 14— plate assembly。 6— spruestripping plate。k?ntr?ri] 相反的 ,對(duì)立的 [(+to)] additional [?39。這時(shí)模板 反向 止動(dòng)銷 向上推 , 在這種情況下 , 止動(dòng)銷 已 在 6處與 導(dǎo)軌 的 下側(cè) 相配合 ,所以模具能一直打開(kāi)。6— waterway elaborate [i‘l230。?] 相當(dāng) ,頗 ,有點(diǎn)兒 Complicated [39。固執(zhí)地 Otherwise [‘?240。 Then only the plete mold body keeps moving on in the usual manner. Care must be taken with this design that the ejector bar 5 is slightly delayed. ejector bar 推出桿 。 Unit Three Mold Constructions The plate 2 to be moved in 3 is connected to the ejector plates by ejector rods, which in turn are fixed in their basic position by strong spring 3. Plate 2 is carried along until the ejector plates are stopped by running against the ejector bar of the machine. 圖 33中的模板 2通過(guò) 頂料桿 和 頂料板 相連 。有環(huán)紋的 groove [gru:v] 溝 。4— ball catch 在圖 3 2中 ,模板 1在 滯留系統(tǒng) 中也經(jīng)常 被使用 。 1 Spring type 1— plate。在注射結(jié)束之后,模具沿第一層分型面開(kāi)模,其中包含了 注料口 、 澆道 和塑件中分流的 針孔型澆口 。濃縮 ;使簡(jiǎn)潔 ,縮短 ③注射機(jī)(合模力、可塑性、注射容量) 。訂貨,匯票 ,匯單 Delivery [di‘liv?ri] 交付 ,交貨 Shape [?eip] 形狀 。 ② shape of the molded parts( size, quality requirements) 。 模具的制造 成本 隨著型腔數(shù)目的 增加 而增加,而相關(guān)的加工費(fèi)用減少了。 diverse [ dai39。sid? ] 段落 Plastics [ 39。 firm [ f?:m ] a. 堅(jiān)定的 ,堅(jiān)固的 ,結(jié)實(shí)的 ; n. 商行 ,公司 standardize [ ‘st230。rel?tiv ] a. 相對(duì)的 ,比較的 The production time required for a given molded part depends on the wall thickness, the injection speed, the recovery rate, the time required to cool the molded material, the cooling capacity of the mold and the necessary incidental time such as duration of pressure holding time, ejection time, delay time, etc. Unit One Mold Constructions 一個(gè)給定的模具零件 的 生產(chǎn)周期 取決于 壁厚、注射速度、 收縮率 、模內(nèi)材料的冷卻時(shí)間、冷卻的 效能 及必要的輔助時(shí)間,如壓力持續(xù)時(shí)間、排氣時(shí)間及延遲時(shí)間等。 Therefore [‘240。mp] 夾緊力,合模力 Capacity [k?‘p230。 As an example: The theoretical max. number of cavities is: F1= volume of machine( cm3) /Volume of molded parts, sprue and runner( cm3) F2=Plasticizing capacity( cm3/min) /Number of shots/min( part, sprue and runner( cm3)) F2 must be equal to or smaller than F1. F1 is the maximum number of cavities attainable. Unit One Mold Constructions plasticize[ pl 230。占有; Means意味著; sprue ; [spru:]直澆道 ; is separated 被分離; conclusion[k?n39。 4— pression spring Fig. figure [‘fig?]的縮寫 圖表 。ten??n]保留 。hi:siv]粘的 。 Threeplate injection mold 1— plate1。 otherwise there would be a tendency for the parts to be pushed back into the cavities in plate 2. With this design t
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