What are the commonly used magnetic block bonding materials and methods?

There are two main methods of bonding magnetic blocks: one is the room temperature curing method, and the other is the polyurethane adhesive group A (crosslinking agent). The first method is slow, and the latter can be bonded directly faster.

(A) room temperature curing method: a total of four ingredients formulated, the bonding process must be particularly careful and serious.

1) 100 g of epoxy resin is heated at 70 ° C.

2) Dibutyl ester 15-20 g.

3) 15 grams of aluminum oxide. > Add epoxy resin together to reduce the temperature to 55 ~ 60 ° C.

4) Ethylenediamine 6-8 g Slowly add the first three mixtures and stir to cool to 35 ° C. After the smokeless, stir for 3 minutes.

This method should not be too much in one dose because it will cure within 24 hours of the formulation. The magnetic block must be ketone when bonding

Wash and sweep the magnetic block with rubber wood. If the formulated adhesive is bubbling, it cannot be used.

(2) Polyurethane adhesive group A: (also called A and B)

Formulation ratio: 3 in group A and 1 in group B. Mix well and use.

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What shall we do if the air is dry at home

What if the indoor air is too dry? Learn these methods, you can automatically humidify. Learn quickly, life tips, life tips, life tips

1. Use empty bottles and water cans to contain clean water and put it everywhere in the room. In addition, after cleaning the open glass bottle after daily use, inject clean water and place it in an inconspicuous corner of the room, which is equivalent to adding several small water environments to the room and has an obvious effect on improving the humidity of the room.

2. Fish and green plants.

Raising green plants can urge the room to maintain appropriate humidity, especially ferns, because they can grow healthily under a certain humidity. Watering and often spraying leaves with water are conducive to improving the air humidity in the room.

Large green plants, such as dripping Guanyin and scattered tail sunflower, are themselves an Air Purifier, which can bring a clean and moist atmosphere to the home environment when placed in the room.

3. Increase the frequency of room cleaning. Wipe the ground with a damp mop, humidify it while cleaning, and increase the cleaning frequency to humidify the room several times. Often wipe furniture with a damp cloth can also humidify the room.

4. Dry the washed clothes naturally. The cleaned clothes can omit the drying and drying steps, and can be hung indoors for natural drying, which can effectively increase the humidity of the room.

5. The warm and humid water and gas in the bathroom humidifies the room. After taking a hot bath in winter, the water vapor in the bathroom is thick. At this time, open the bathroom door, the warm and wet water vapor flows to other rooms, and the humidity increases several times in an instant.

6. Humidify the towel on the radiator and put a basin of water under it. Put a wet towel on the heating. The heating has moisture when radiating, which can also increase the air humidity.

7. Often open windows for ventilation. The outdoor air humidity is relatively higher than the indoor air. You can open the window in the morning and afternoon to change the indoor air flow.

8. Use the humidifier aroma diffsuer. Humidifier humidification is one of the commonly used methods of indoor humidification. However, humidifiers need to be regularly cleaned to prevent bacteria in the humidifier from spraying into the air with water spray. They can use Aroma Diffuser, ultrasonic spray, no need to replace STICKER.

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