Brief Introduction

JH-8035 is composite silane vitrification agent containing zirconium salt, silane ingredient, applicable for surface pre-treatment for galvanized sheet, aluminum, aluminum alloy, zinc alloy and steel etc. This treatment can replace the metal parts of iron phosphating, zinc phosphating and chromium phosphating process. This product does not contain volatile content, after the treatment can enhance the metal surface coating adhesion and corrosion resistance, have the effect that reduce costs, improve production efficiency.

This product suitable for dipping oil immersion process.

Preparation of tank liquid

1)Before adding this agent,to ensure that the tank cleaning,residue free,and check no nozzle clogging,angle is correct.Deionized water conductivity should be less than 30μS/cm.

2)Add 40-60kg film forming agent in every 1000 tank liquid.

3)Tank liquid PH value between 3.8-5.5

In order to save cost and improve the stability of products,we suggest customers to add the agent,and monitoring the PH at the same time.

control parameter

Apperance:colorless and transparent liquid

Deionized water:electrical conductivity <30μS/cm；Cl-<10ppm

Processing time:3-5min

Temperature    Room temperature~40℃    

PH: 3.8 ~ 5.5

Boiling point:100℃

process flow

1) Degreasing-Suggested the first two degreasing,if only one degreasing,can improve degreasing agent concentration or temperature or prolong degreasing time,to fully processed surface without grease,phosphate-free degreasing agent recommended products. (we have no phosphorus efficient degreasing agent)

2)  Tap water washing-to washing thoroughly.

3)  Deionized water washing-electrical conductivity <200μS/cm

4) composite silane vitrification agent

5) Deionized water washing-electrical conductivity <30μS/cm6)

6) Drying-70 ~ 150 ℃ air drying or blow drying

Preparation of tank liquid

This processing layer must be completely dry before painting.No need to dry before electrophoresis.

The bath PH value should measured many times every day.PH measurement requires use of fluorine ion and stable PH meter (calibration between PH 4-6.86).

test method

Electrical conductivity

The conductivity meter calibration is used after the determination of deionized water conductivity

PH Value

The PH meter calibration is used after the determination of the PH of the solution or use precise PH paper detection range of (3.8-5.4), it is recommended to use PH test paper test.

Equipment requirements

All access to the equipment all requirements of this treatment with stainless steel or lined for fluoride resistant hard PVC or PE, do not use cast iron tub!

Attention

Wear protective glasses, rubber gloves and wear protective clothing during processing.

Avoid direct contact with eyes,skin,clothing and equipment.

Get medical attention if accident happen.

packing

25kg/barrel

Storage environment

Storage temperature requirements between 5-45 ℃, if the product has a 10% deposit, please do not use.

guarantee period

One year

wastewater treatment

Tank liquid is acidic,and contain phosphate,sewage may be required to neutralize or waste water treatment.