Silicone rubber seal ring

Received a lot of customer drawings technical requirements, requiring the product line to do no raw edge, because many projects often do not carefully review the technical requirements of 2D drawings when receiving drawings, it seems very simple a silicone rubber sealing ring, the product unit price is reported to the customer in a few minutes, so that when the project case is received later, Only to see that the technical requirements of the drawing are that the sealing ring closing line should be made without rough edges, at this time, we can not communicate with the customer technology, so that the customer will think that we are not professional. Then let me popularize the silicone rubber sealing ring closing line can be achieved without burr edge?
The answer is: no rough edge can be achieved, but to achieve no rough edge in the silicone rubber sealing line is to meet the following requirements:
1, the silicone rubber sealing ring mold precision, the current solid mold is basically unable to do, it can only be liquid mold, liquid mold is not just a set of liquid mold can do no closing line, this has to pay attention to the accuracy of liquid mold, normal to do no burr liquid mold is expensive, about hundreds of thousands of a set of estimates.
2, even if the accuracy of the liquid mold is reached, there is another condition is the equipment, excellent liquid injection molding equipment, if the equipment can not meet, even if the mold accuracy is reached, it is not possible to do the product without burring line.

3, the remaining is the engineer’s machine technology, even if the mold accuracy is reached, the equipment is good, if the engineering technology is not good, the same can not do the mold line without raw edge.
The above three points must be met in order to achieve the technical requirements of the silicone rubber sealing ring mold line without burrs, the right time, the right place and the right person.
That many fans are curious about the normal operation of the silicone rubber seal mold line is how much can be done?
So there are two different mold structures
1, solid mold, normal solid structure of silicone rubber sealing ring mold line raw edge can be 0.08 is very good
2, the liquid mold, the normal liquid structure of the silicone rubber sealing ring mold line can be 0.05 is very good
If you want to make the mold line more perfect, there is another way to take it to grind, but grinding is risky, easy to break the sealing ring, then there are many fans will ask, can not take it to freeze the rough edge? Of course it can. I’m talking about freezing the rough edge after the mold line is even more perfect. So don’t confuse rough edges with plain edges.
The above is a small series of personal industry in some of the views, if you have different opinions can comment area together to learn to discuss oh

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