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魔界狂想曲- 第一四零八章 打氣筒-玄幻奇幻-萬花小說
当前位置:萬花小說>书库>玄幻奇幻>魔界狂想曲> 第一四零八章 打氣筒

第一四零八章 打氣筒

  他就這樣子被打氣筒的氣門給難倒了。


  其實還有個問題,打氣筒的活塞怎麽製作?與筒子之間沒有縫隙麽?打氣的時候不會漏氣麽?


  活塞內部是金屬塊,用車床加工出來的,與筒子的縫隙本來就非常小,又給它製作了橡膠片,此外還加了油,油也能減小縫隙。


  如果打氣筒的氣門與輪胎的氣門在形狀上比較符合,那麽對接之後就不會漏氣麽?

  他不知道。


  他實驗的結果是會漏氣。


  即使在一側的管子底部墊橡膠墊,再用力壓結實,都會漏氣。


  他覺得主要原因在於自己製作的管子形狀不夠標準。


  中等尺寸的管子他能夠加工標準,更大尺寸的管子他就加工不標準了。


  現在他的希望是這樣子。


  一個大的管子套著一個小的管子,中間幾乎沒有縫隙。


  一個更大的管子套著這個比較大的管子,中間也幾乎沒有縫隙。


  此外中間這個管子,插到頂部之後會遇到橡膠墊,用力把它給壓到橡膠墊上,那麽縫隙就被徹底堵死了。


  連打氣筒的活塞都能夠不漏氣,氣門的連接不應該這麽吃力。


  於是開始試著製作這個結構。


  他覺得主要問題是加工精度問題。


  隻要精度到了,氣密性就好。


  其實它涉及到多個管子,一個套一個,都必須非常的標準,這樣子隻要外麵的管子能夠套起來,裏麵的管子也能夠一個接一個的套好。


  他是希望這種方式可行。


  第一個樣品做出來之後效果就不錯。


  但是依然有點漏氣。


  然後就重做。


  重做的目標一是把管子都給做的足夠標準,二是試用不同彈性的橡膠片,想瞧瞧氣密性如何。


  說是橡膠片,其實是他用動物膠與獸皮合成出來的。


  也許是因為自己的手不夠靈活。


  做出來的成品一直輕微的漏氣。


  難題很多。


  打氣筒的出氣口有塊金屬,金屬與下麵的細管子乃是一體的。


  他再製作一個粗管子,套住細管子,粗管子是用膠水沾在金屬塊上的,形狀需要進行仔細的加工,這樣子裝好之後不會歪。


  粗管子與細管子之間再套一個橡膠環,壓到最深處,用動物膠給固定。


  這個橡膠環在打氣的時候會封閉住打氣筒與輪胎的氣道上的縫隙。


  他的氣門芯結構非常麻煩,是一個大管子套著一個小管子,小管子外麵包著一層橡膠管。


  打氣的時候氣門芯的小管子套住打氣筒的細管子,並且被大力壓到最深處,頂住橡膠環。


  兩個管子之間的縫本來就很小,又被橡膠環給封住了。


  然後就可以打氣了。


  反正是花費了一周。


  此外他專門製作了一個球針。


  用打氣筒與球針可以給皮球打氣。


  他製作的這種合成橡膠有個非常重要的用處,那就是可以製作皮球。


  皮球的氣門他準備采用類似輪胎的那種結構,內部有個氣門隻允許進氣,不允許出氣。


  球針可以撐開這個氣門,向裏麵打氣,打完氣拔下來球針,氣門又會關閉。


  球針的設計跟氣門芯類似。


  有了這種合成橡膠,怎麽製作一隻皮球對他來說也是個需要考慮的問題。畢竟球是圓的。


  以倒模的方式是否能夠做出這麽圓的球皮麽?

  想了一下,覺得其實還是可以的。


  把球皮分成兩部分,倒模做好,然後用動物膠黏在一起。


  外麵再製作一層球皮,跟裏麵那層黏在一起,封口卻錯開。


  外麵這層球皮甚至可以進行拚接,形成籃球或者足球的樣子,帶有花紋。


  就是說,一隻球分為內膽和外麵的厚皮。


  厚皮起保護作用,防止內膽被釘紮破。內膽充氣,提供彈性。


  他的魚鰾膠粘性是足夠的,氣門的質量他試過幾次,也不錯。


  用動物膠混合獸皮、蛇皮、腸衣碎片製作出了一種可用的合成橡膠,這件事對他來說是挺新鮮的。


  他以為那是稀鬆平常的發明。


  這種合成橡膠加熱後還能熔化,可以倒模製作橡膠物品。


  對此他感到非常開心。


  打氣筒的製作成功也使他很開心。


  比起自行車,他覺得先製作出一隻皮球來比較好。


  先製作內膽。


  內膽的彈性和力量都要足夠強,不要打著氣的時候輕而易舉就爆了。


  想了一番之後內膽他製作了兩層,用動物膠粘在一起。


  橡膠在倒模的時候就是球形的,充滿氣也是球形的,隻會有非常微小的膨脹,像是輪胎一般。


  內膽設置好了氣門,氣門黏在一塊橡膠上,橡膠再黏在內膽的內部,外麵再粘一層橡膠進行封閉並留下一個氣孔。


  倒模那一步比較麻煩。


  他是向一個球形空洞裏塞一個實心球,兩者中間的空隙用於倒模。


  如果空洞與實心球的位置不正,那麽倒模得到的橡膠厚度就不均勻,製作成球後打滿氣,它就不是圓的,而是歪歪扭扭的。


  他用陶板做出的那個球形空洞,又用木頭做的實心球。


  實心球他吊在一根棍子上,球形空洞放在下方。


  連續製作出很多個失敗作品。


  兩天時間,有兩個比較滿意的倒模作品。


  然後製作氣門,安裝氣門並做好打氣孔。


  然後粘結形成內膽。


  這個內膽真的不錯。


  彈性跟他老家的足球類似。


  於是在外麵再粘貼很多塊合成橡膠,拚接起來。形成足球的模樣。


  但是每塊小橡膠的尺寸他不容易把握。


  動物膠有個好處,那就是溫度一高就會熔化,然後就可以把粘貼好的東西給分開。他先是在內膽上貼好這些小塊的皮革,小塊的皮革形成了一個完整的球,接著加熱,把小塊皮革給取下來,簡單的縫合,再貼上去,用膠水粘好。


  看起來是很簡單的一步,結果折騰了兩天都沒好。


  做出來之後總是又醜又皺。


  鬼知道老家的足球是怎麽把外層給縫合起來的。


  想了一下,決定還是使用貼的方式,而不是縫的方式。


  很多塊小的橡膠貼到內膽上,盡量隻留下很小的縫。


  這件事可不容易做,貼的不好就會皺巴巴的。


  所以這些小塊他是從另一個倒模得到的橡膠皮球上剪下來的,這樣子怎麽貼都不會有褶皺。


  想了一下,他出了另一個主意。


  那就是再做一個類似內膽的皮球,它比內膽稍微大一點,可以套到內膽上,然後用膠水粘合在一起,可是即使它被刺破也不要緊,畢竟它不是內膽。


  然後在這一層表麵貼上很多小塊的橡膠,橡膠的邊緣跟內部那一層縫合在一起。


  都縫合好之後再把兩層皮球給粘結起來。


  這種做法聽起來不錯,其實做起來問題挺多的。

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