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What are the requirements for hardness of silicone cookware?

Silicone cookware hardness request

In the silicone cookware industry, we will often hear the word hardness, because some products will be produced, some will be hard, and some will be a lot of soft, so many manufacturers will test the hardness of silicone cookware after the product is produced, which is the degree of deformation of silicone cookware after molding, so how to test the hardness of silicone cookware? The following OYIGIFTS tell you.

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Many designers and amateur engineers to use silicone design a product often because of this thing product concerns, do not know how much hardness the material is to achieve the actual performance of the effect, and silicone cookware itself belongs to the characteristics of special products, hard and soft degrees of choice may lead to too soft to produce unstable, loaded food automatically spilled, too hard not very good normal use, feel bad, the product is too brittle easy to tear and so on! Phenomenon!

1, test hardness before the need to produce a piece of test products, also called hardness grain, hardness grain size requirements for 30 × 30 × 7m, the surface requirements flat, placed on the test bench requires the measured surface is horizontal. To avoid testing errors, it is better to make a set of hardness grain molding molds according to this specification for molding hardness grains.

2, for the production of hardness grain rubber material to be fully mixed evenly, the amount of vulcanizing agent must be added in strict accordance with the instructions for the use of the vulcanizing agent, too much or too little will affect the hardness of the rubber molding.

3, hardness grain molding conditions, to 50T plate vulcanizing machine + 150 × 150mm template hardness grain mold for example measured upper and lower mold temperature: 165 ± 5 ℃, pressure: 50kg/cm2, vulcanization time: 300s.

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According to the above conditions after the production of hardness grain can not be immediately hardness test, need to be placed at room temperature to be hardness grain natural cooling before the hardness test, the specific test methods are as follows.

1、Lay the hardness grain flat on the table to ensure that the measured surface is horizontal.

2、Take the stinger at the bottom of the hardness tester dial and align it vertically with the back side of the hardness grain.

3、Apply a force of 1kg to the hardness tester and press the hardness grain at a speed of 6cm/s. To ensure the accuracy of the test, it is better to make a hardness tester test stand and install the hardness tester behind the stand for the hardness test.

4, to be hardness tester dial pointer pause after reading the pointer pointing to the value, and recorded, at this time the high temperature vulcanized silicone rubber (HTV) hardness test is complete.

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In summary, testing the hardness of silicone kitchenware can use a hardness tester for testing, the hardness of silicone kitchenware is very important, and may affect the effectiveness of your product use.

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