What is the mold for rubber toys?

There are many mold materials, such as 45#, P2, 718, H13. S136 and so on, which are commonly used. Depending on the type of mold, Cologne mold will choose different steel materials to process according to different requirements.

Rubber mold is the simplest method in rapid mold. Generally, the RP prototype is re-molded with silica gel, but its service life is very short, only 1-3. It has good elasticity and replication performance. When using silicone rubber to replicate the mold, you don't need to consider the draft angle, which will not affect the dimensional accuracy. It has good separability and can directly cast the whole mold without dividing the upper and lower molds.

Then cut along the predetermined parting line and take out the master mold! The raw material and formula are special mold silicone rubber, which is sold in double packaging. Component A is rubber compound and component B is catalyst. The room temperature, the strength and hardness of the mold should be considered when preparing, so as to determine the weight proportion of AB component.

a: b = 1: 1 when the room temperature is 2-25 degrees. 5。 When the chamber is low (but not lower than 1 degrees), the B component is appropriately increased. 1-。 Three copies. If the room temperature is higher, it will reduce group B's . 1-。 Three copies. The specific method is to determine the total dosage according to the mold volume, and then accurately weigh the components A and B in proportion, and put them in a vessel and stir them evenly.

molding: pour the prepared materials into the clean objects to be imitated. In order to save materials, a thinner mold can be made, and it can also be painted in several times. In order to increase the tension of the mold, gauze and the like can be pasted. It can be cured into elastomer in 2 hours at room temperature of 2 degrees, and can be used in one day.

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