Muaj pes tsawg leeg thiab txheej txheem txheej txheem ntawm Degreasing tshuaj rau hluav taws xob cua sov Tube Electroplating

Muaj pes tsawg leeg thiab txheej txheem txheej txheem ntawm Degreasing tshuaj rau hluav taws xob cua sov Tube Electroplating

txheej txheem technology

Degreasing (degreasing) → Tshem tawm cov coatings qub → Ob hla kev tu → Alkali corrosion → Ob kis ntawm kev tu → Tshauv thiab nplai tshem tawm (polishing) → Ob kis ntawm kev tu → Ib zaug ntawm zinc nag lossis daus → Ob hla kev tu → Zinc txheej tshem tawm → Ob kis ntawm kev ntxuav → Thib ob dhau ntawm zinc nag lossis daus → Sulfuric acid neutralization thiab ua kom → Tu → Chemical npib tsib xee plating → Ob hla kev ntxuav → Ua kom → Pickle plating → Ob hla kev tu → Passivation → Ob kis ntawm kev tu → Tshuab ziab → Kev laus Inspection neeg ua hauj lwm warehouse.

2. Cov txheej txheem tseem ceeb piav qhia

2.1 Kev sib xyaw thiab txheej txheem ntawm cov tshuaj degreasing

Sodium hydroxide 40-609/L, 70-90 "c, 1-Zmin.

Rau cov neeg uas muaj roj paug hnyav, cov kuab tshuaj organic yuav tsum tau siv los ntxuav ua ntej.

2.2 Tshem tawm cov txheej qub

Tshem tawm cov txheej txheej qub yog ib qho ntawm cov txheej txheem tseem ceeb hauv aluminium alloy tin plating.

2.2.1 Kev sib xyaw thiab kev ua haujlwm ntawm kev daws teeb meem rau tshem tawm cov txheej txheem qub

Cia 10-150 litres ntawm nitric acid nyob rau hauv chav tsev kub kom txog thaum tag nrho cov rov qab.

2.2.2 Kev sib xyaw thiab kev ua haujlwm ntawm cov tshuaj rau kev tshem tawm cov txheej zinc qub

Tawm 10 mus rau 150 litres ntawm sulfuric acid nyob rau hauv chav tsev kub kom txog thaum tag nrho depleted.

2.2.3 Kev tshem tawm cov qub oxide zaj duab xis tov muaj pes tsawg leeg thiab kev khiav hauj lwm tej yam kev mob: Sodium hydroxide 40-609/L, 50-90 "C, kom txog thaum tshem tawm tag nrho.

2.24 Cov Txheej Txheem thiab Txheej Txheem Txheej Txheem ntawm Ni P Alloy tov rau kev tshem tawm

700mL/L concentrated nitric acid, 30-409/L sodium chloride, 6-109/L hexamethylenetetramine, 15-ZoglL urea, chav tsev kub.

(1) Ua ntej stripping, cov khoom yuav tsum tau qhuav los yog tshuab ziab nrog cua txias kom tsis txhob txo cov nitric acid concentration vim noo noo, uas yuav ua rau corrosion ntawm substrate.

(2) Cov khoom uas tau muab tshem tawm los ntawm plating yuav tsum tau ntxuav sai sai kom tsis txhob muaj cov xim dub oxide zaj duab xis rau saum npoo tom qab tshem tawm.

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