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BuKe factory >> Questions >> 印刷廠橡皮布的襯紙為什麽要比橡皮布的面積小?

印刷廠橡皮布的襯紙為什麽要比橡皮布的面積小?

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2020-09-19 | 630 Views | 🔊 Click to read aloud ❚❚ ▶ | Share:
橡皮布的裁切尺寸是按照嚴格的規定進行的。以國產J2108型對開單色膠印機為例,其橡皮滾筒體直徑為293.5mm,根據所印紙張最大幅面為615mm×95m,橡皮布的尺寸為835mm95m,但它的襯紙幅面卻是800m×980mm為什麽襯紙尺寸比橡皮布尺寸小了這麽多呢?這是因為

印刷廠橡皮布的襯紙為什麽要比橡皮布的面積小?

橡皮布的裁切尺寸是按照嚴格的規定進行的。以國產J2108型對開單色膠印機為例,其橡皮滾筒體直徑為293.5mm,根據所印紙張最大幅面為615mm×95m,橡皮布的尺寸為835mm95m,但它的襯紙幅面卻是800m×980mm為什麽襯紙尺寸比橡皮布尺寸小了這麽多呢?這是因為

①有利於橡皮布在裝夾時的綳緊,對網點的轉移質量有好處



②對延長橡皮布的使用壽命有好處,在橡皮的邊緣區因無襯紙,有利於抗油污侵蝕,使橡皮布不至於因外界油污的滲入、腐蝕,而減短壽命。

印刷廠橡皮布的襯紙為什麽要比橡皮布的面積小?


為什麽越靠近滾筒體金屬錶面的襯紙厚度越薄,越靠近橡皮布內錶面的襯紙越厚呢?這是因為


(1)離滾筒體錶面越近,襯紙的彎曲程度就越大,而在滾筒體錶面墊上薄襯紙有如下優點

①柔軟耐彎曲;

②在夾緊過程中易與滾筒體錶面貼緊靠實。


(2)離滾筒體錶面越遠,襯紙的彎曲程度就越小,而在橡皮布的內錶面墊上厚襯紙有如下優點:

①襯紙不會因彎曲過度而折裂;

②不僅耐拉,且因結構緻密而耐壓;

③一張厚度大的襯紙的薄厚度誤差,要比厚度小的多張紙的積累誤差小,有利於襯紙總厚度的均勻化

印刷廠橡皮布的襯紙為什麽要比橡皮布的面積小?
印刷廠橡皮布的襯紙為什麽要比橡皮布的面積小?

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