苏州厂家经销批发三价黑锌钝化剂333B剂 防腐蚀金属加工助剂

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Name: Trivalent Black Zinc Passivating Agent
Type: Passivator
Model: HAX-333B
Product Specification: 25L
Main Purpose: Galvanized trivalent black passivating agent

Trivalent Chrome Black ZincHAX-333

1. Characteristics:

1. Trivalent chromium galvanized black passivating agent, contains no hexavalent chromium, no silver or other harmful metals, and does not contain toxic substances. Fully meets environmental protection requirements.

2Trivalent chrome black passivator can be used for both acid zinc and alkaline zinc. The passivation layer is bright and uniformly dark, and it is strong and resistant to wear and tear.

3belongs to a group of passivation solutions. After black passivation, combined with our company's black zinc sealing, it can significantly improve the corrosion resistance of the coating against salt spray erosion. The resistance can reach more than 96 hours without the appearance of white corrosion spots.

II. Product Features

Product Name

Purpose

Characteristics

Specific Gravity 20

A

Cultivation starter, supplements

Deep purple acidic liquid

1.18

B

Breeding starter, supplements

Yellow acidic liquid

1.05

<<C>>

Breeding starter, adjustment agent

Colorless, alkaline, transparent liquid

1.06

III. Operation Parameters

Optimal Value

Scope

A

Rolling Plating: 80ml/L

60~100 ml/L

B

Rolling Plating: 80 ml/L

60~100ml/L

<<C>>

Rolling Plating: 80ml/L

60~100 ml/L

Temperature

25

20-40

PHValue

1.8

1.8 to 2.2

Time

12S

8----20 seconds

Stirring

Circulating stirring within the tank

IV. Construction of Baths

1. Fill the tank with water to one half.

2. Add the required amount of B and stir it evenly.

3. Add the required amount of A and stir it well.

4. Add the required amount of C and stir it evenly.

5. Adjust the solution to the working volume.

6. The passivation solution must be stirred evenly before use.

7. Adjust the temperature of the passivation solution to a reasonable range.

5. Solution Maintenance

1A and B can adjust the pH value during the production process. Generally, no other acids are required to adjust the pH value. If the passivation is not sufficient and the color is too dark, B can be used for adjustment.

2Trivalent chrome black zinc passivation solution requires continuous production. When production is stopped, it will also automatically consume some of the solution.

3, the replenishment of consumption should be done in proportion, with A:B:C=1:1:1.

4If the reaction is too fast, C can be used to adjust the reaction speed. Additionally, a small amount of C can be added to adjust the reaction speed, blackness, and operability.

5In production, stainless steel should not be used as a container for passivation solutions.

VI. Operating Precautions

1The thickness of the passivation layer zinc should be at least 6 μm or more.

2Due to the high temperature and acidity, the plating solution continuously undergoes chemical reactions with the workpieces placed in the passivation solution. Eventually, the plating solution will age and become unusable.

VII. Process Flow

Galvanized → Washing → Activation with 1% nitric acid → Washing → Passivation with trivalent chromium black passivation solution → Washing → Sealing with black zinc → Drying → Rolling → Baking at 105 degrees Celsius

VI. Fault Handling Procedures

Question

Reason

Solution

1Nodular layer is dark or powdery in appearance

AThe concentration of the agent is too low.

Follow the procedure of adding 3 milliliters per liter, gradually supplementing the solution. After adding Agent A, measure the pH and adjust the pH accordingly.

2The passivation layer does not appear dark enough in color

1The concentration of Agent B is too low,

2The pH value of the passivation solution is too high.

3The temperature of the passivation solution is below 20℃.

1, Supplementary B

2Adjust the pH value with A.

3, increase the temperature

(3)When passivated, the screw threads are prone to corrosion.

The C agent in the solution is insufficient

Increase the amount of C, control the reaction speed

4During the passivation process, the reaction is very intense, with gas being released, making the zinc coating prone to cracking.

1The pH value of the passivation solution is too low,

2The passivation time is too long,

3High concentration of passivation solution

1, Increase pH

2, add B to adjust the pH value,

2, reduce passivation time

3、Diluted Passivation Solution

5The passivation layer has poor corrosion resistance.

1The pH value of the passivation solution is too low.

2The passivation solution contains too many zinc ions.

3The concentration is too low.

1, Increase pH

2、Diluted Passivation Solution

3, Increase A concentration

VIII. Safety Information

During production operations, it is necessary to wear appropriate protective gear, such as eye protection, plastic aprons, acid-resistant rubber gloves, and anti-slip shoes. The operations should be carried out in a well-ventilated environment.

IX. Packaging

When there are no special requirements, this product is packaged in plastic barrels, with a weight of 25 kilograms per barrel or 30 kilograms per barrel.

Ten, Storage

Store the sealed item in a cool and dry place.

Suzhou Hongaoxin Chemical Co., Ltd. was established in 2012. It is a technology-based company that adapts to market demands through technological innovation and integrates chemical product production, research and development, and trade. The company mainly deals with electroplating additives, brighteners, polishes, degreasers, defoamers, etc. Over the past decade, the company has been committed to the expansion of galvanizing technology. By serving the electroplating industry both domestically and internationally, the company continuously innovates electroplating techniques, ensures product quality, improves management systems, expands the company's scale, and has also made significant contributions to the environmental protection of electroplating in the industry.

The company has passed the ISO9001:2008 quality management system certification and the ISO14001-2004 environmental management system certification. During our development process, we have gained a large number of loyal customers. We use various methods such as bulk procurement of raw materials and modern production techniques to reduce product prices and improve product quality. As a result, our products have significant market competitiveness both in terms of price and quality.

The company takes the needs of industry development as its technical and service objectives, continuously developing high-tech products that promote the advancement of surface treatment technology. We serve new and old customers both domestically and internationally with the principles of "advanced technology, satisfactory quality, comprehensive service, and outstanding reputation." We also work hand in hand with colleagues in the industry to create a brilliant future together!


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