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Terdapat dua sebab utama pembentukan filem oksida di lubang -lubang aluminium machined ` profil dan di sekelilingnya:
(1) Bahagian aluminium machined dibasuh dengan teliti selepas mencuci kaustik. Alkali yang memasuki liang -liang semasa mencuci kaustik gagal dibasuh dengan bersih. Selepas rawatan pengoksidaan, soda kaustik mengalir keluar dari silinder, menyebabkan filem oksida di sekitar liang -liang menjadi berkarat.
(2) Terdapat kegembiraan di sekitar lubang bahagian aluminium machined . Lubang skru mengetuk aluminium sangat astringen, pengendali sering mencuci untuk melincirkan, jika kekurangan pengemulsi alkali dalam basuh alkali, sukar untuk dicairkan.
Penyelesaian:
(1) Basuh bahagian aluminium machined dengan petrol sebelum mencuci kaustik, pengemulsi harus ditambah dalam larutan kaustik;
(2) Bahagian aluminium machined perlu dibasuh selepas mencuci kaustik.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.