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魔界狂想曲- 第一三七三章 精度-玄幻奇幻-萬花小說
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第一三七三章 精度

  所以馬林這種蒸汽機的製作難度還是非常高的。


  別的先不說,他需要先把做夠精確的車床給製作出來。


  他的車床由水力驅動,每秒一百二十多轉。


  力氣極大,反正比兩個人大漢腳踏驅動還猛。


  這麽大口徑的管子,到底是用車床合適,還是鏜床合適?


  三十厘米內徑。


  他的刀具非常的出色。


  他覺得還是采用鏜床方式來加工比較合適,把刀具給固定好。


  然後轉被加工的金屬塊。


  試過之後他覺得其實反過來也沒事,轉動刀具,固定金屬快。


  刀具和轉軸、滑動軸都必須非常標準。


  金屬塊必須被固定的非常好。


  刀具的刀尖做成倒V形,這樣子推動刀具向裏走的過程中,就會把金屬中間的洞給越開越大。


  隻是想把這種刀具給做的很標準,還真是不太容易。


  這涉及到一個問題,刀片要做多厚?

  刀片要是太薄,就不結實。


  要是太厚,會對洞壁形成摩擦,使之不準。想一下,刀刃的脊梁應該做成圓弧形的。


  但是如果刀刃比較薄就沒有問題。這確實對刀刃的鋼的材質有很高的要求。


  而且他必須保證加工的中途不需要換刀片。


  加工製作這個刀片,並且把它給安裝好,再調試好,這件事難著呢。


  那個推著刀片向前滑動的裝置同樣難做,想保證刀片走直線,而且與轉軸的方向保持完全一致。


  他隻能靠手。


  這是老師傅的才能。


  這種才能需要失敗無數次才能練出來。


  他需要每天進行練習。


  以保證手的精確性。


  這就是他的工作。


  最近他每天閑下來就打磨鋼珠,為的是提高手藝,以及拿這些鋼珠製作軸承。


  設備隻能幫助他縮短加工時間,卻無法幫助他提高加工精度。


  對於別人來說,設備確實能夠提高加工精度,因為別人的手藝沒有他這麽好,而設備的精度是由他的手藝決定的。


  為了這台足夠精密的車床,他是費盡心思。


  怎麽對刀具進行固定?


  這麽大的刀具肯定容易損壞。


  所以要依次更換刀具。到了最後一把刀具的時候才需要認真考慮精密性。


  這最後一把刀具應該怎麽固定在轉軸上呢?

  厚金屬板,中間有道縫,把刀具固定在這道縫裏,打螺絲。


  金屬板固定在轉軸上,用尺子量清楚距離。


  怎麽量清楚?

  試著用它在一塊金屬板上畫個圓,量一下圓的直徑是不是正好三十厘米。


  誤差最好在兩毫米之內。


  這對刀具的要求非常高。


  下一個問題就比較令馬林頭疼了。


  推動刀片沿著轉軸前後滑動,保證它走的是標準的直線。


  架子需要三個滑動軸才能保證它前後移動的時候不歪斜。


  而三個滑動軸如果製作的不夠標準或者對應的洞眼製作的不標準,架子就滑不動。


  如果通過反複摩擦,終於能夠滑動了,那推出來的路線也不是直線了。


  對馬林來說,這是個美術問題。畫師畫複雜機械的時候經常遇到此類問題,如果自己的空間把握不夠好,畫出來的機械就不標準,瞧起來很有問題。


  他要借用一些簡單的工具,手工把它們給加工的比較標準。


  比如他要手工製作一米長、兩厘米粗的金屬圓柱,誤差不到兩毫米。


  利用車床可以加工出一個粗略的模樣,但是如果想更精確一點,依賴他的手工打磨。


  他需要三個這麽標準的圓柱。


  還需要三個這麽標準的洞眼。


  這個誤差,要求實在是太高了。


  模型機製作好之後每天都有人來看。


  包括外地人。


  馬林則是一直在加工金屬圓柱,然後製作架子。


  為的是做到,用三根金屬圓柱約束一個架子直線滑行,不卡住,不變向。


  他的車床的轉軸由水力驅動,想動起來比較麻煩,所以馬林在嚐試的是,用架子推動將要被加工的金屬塊,保證它的移動方向始終與車床的轉軸平行。


  這件事可不簡單。


  平行移動一米,誤差不超過兩毫米。


  刀具自身也存在偏差。


  這麽一想,真是覺得頭疼。


  有個道理是這樣子的。


  一個人即使射箭不準,但是如果運氣好,也能一箭射中靶心。


  所以當他加工的量比較大時,就會出現一兩件成品的精確度非常高。


  他的蒸汽機模型機一直在吸引原始人的注意力。


  即使他自己對它一百個不滿意,原始人覺得它簡直太神奇了。


  自然他們也會問它的用途。


  他就會解釋,蒸汽機如果質量更好,體積更大,就可以用於拉車子、開船、吊起重物,諸如此類。


  利用蒸汽機的原理還可以製作燃油機。


  燃油機體積更小,以後做農活都用燃油機就行了。


  馬林非常想製作拖拉機。


  但是壓根就沒有燃油。


  總不能燒豬油。


  他幹餾木炭能夠得到木焦油,但是熱值太低。


  他在想的是,木煤氣也算是一種可燃氣體,或許可以用於製作汽油機。


  有了汽油機,製作螺旋槳飛機也成了一種可能。


  木煤氣他可以幹餾木材得到。


  但是他不知道怎麽進行淨化。


  那麽多煙塵。


  此外他們這裏的煉鐵高爐一直在把木煤氣排放到空氣中。


  他沒有能力對它們進行加工處理,裝成瓶子。


  隻能浪費了。


  要是有石油就好了。


  有了石油他起碼可以搞個柴油機,然後用柴油機驅動小船,在河道裏四處亂跑。


  不像是蒸汽機這般得拉著木炭一起跑。


  一噸木炭夠汽船跑多遠的?


  不知道。


  因為來看蒸汽機模型機的原始人很多,所以他又用鐵片製作了一個風扇,用這個模型機帶著轉動。


  他是很想製作一個發電機。


  畢竟附近有水力。


  但是他缺少材料。


  銅絲。


  絕緣漆。


  以及磁鐵。


  直到現在他都沒有見到磁鐵。


  此外‘機靈鬼’知道怎麽生產火鐮。


  生產出的各種生鐵中有一種非常適合打火,效率很高。


  現在生產出什麽樣子的鐵和鋼,與運氣還是有很大的關係。


  此外馬林知道怎麽生產鐵絲。


  把略微有點粗的熟鐵鐵條一端敲的比較細,塞進一個鋼板上的比較小的洞眼裏,用力拉,就可以拉出鐵絲來了。


  有了鐵絲沒有磁鐵,他是不知道該怎麽發電。


  似乎鐵絲不如銅絲好,具體原因他也不知道,大約是電導率不同?


  最美好的春季,別人在外麵玩,他正在簡易車間內打磨著金屬條,試圖裝配出一個比較標準的滑動架子,並且把它的方向給矯正好,讓它的滑動方向與車床的轉軸方向一致。


  疲勞帶來進步,他知道。


  他的手工加工的精度確實一直有在提高,但是非常的緩慢。


  就像是一個畫家的畫功,一開始進步飛快,後來便開始卡殼。


  必須延長勞動時間,提高勞動強度。

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