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Gentleman, I would like your help with sourcing out a RIM Process (Reaction Injection Molding) supplier in Canada or up state New York. The product that i am looking to mould are enclosures for a consumer electronic systems, 4-6 mm wall THK rigid material, size approx. 12" x 24" All...

ornerynorsk - noted and updated. Thank you.

Gentleman, I would like your help with sourcing out a RIM Process (Reaction Injection Molding) supplier in Canada or up state New York. The product that i am looking to mould are enclosures for a consumer electronic systems, 4-6 mm wall THK rigid material, size approx. 12" x 24" All...

Any recommendation for material manufacturer? Sabic / Chimei / Bayer....? What series?

Gentleman hello, I would like your help to define an Infrared Transmitting resin for a part i am designing, the part is a cover (see attached picture) for an IR transmitter, the cover snaps into a designated opening in some other part. Manufacturing method: Injection molding. Material...

Hi guys thanks for your help, it is highly appreciated. These are enclosures of a HHD and its is (not in storage nor in the field) not subjected to any temp extremes. PC/ABS is wide spread bland (mostly in consumer electronics) so i find it hard to believe that it can be so easily attacked by...

Excellent tip Rick, thank you! it very informing, your help is highly appreciated. Could you please explain how you calculated that 20 deg increase temp for 22 hours will approx. simulate 3 month real life?

I have tried dropping them unfortunately it did no resulted in cracking. That's why i'm looking for environmental test to expiate the crack development.

I meant to say there are no knit lines in this area.....

There are no knit lines in the parts nor in the mold flow simulation. The device successfully performed drop test when it was initially released 2 years ago.

Unfortunately you can't allays mold in north america / Europe especially not with big quantities. It should not be the reason for cracking.

This part is an enclosure of a hand held devise (300mm x 75mm x 35mm) which has been manufactured for the last two years. The cracks started to appear about 2 month ago in the lower two bosses of the part, their geometry and starting point are random but they always appear in the lower two...

Should the enclose be able to deal with 0.2 mm gap, usually when you design plastic enclosures you keep a gap of 0.2mm in advance. I did not found any residue / solvents on the part or in the process. Is there a test (environmental possibly) that can simulate cracking? Is there a test which...

rickfischer51: This part is an enclosure of a hand held devise (300mm x 75mm x 35mm) which has been manufactured for the last two years. The cracks started to appear about 2 month ago in the lower two bosses of the part, their geometry and starting point are random but they always appear in the...

Simi1004: Can you recommend environmental cycle? will a Halt/Hass be sufficient or just cooking with humidity? MikeHalloran: If the material so sensitive that it will crack with hand lotion, there is no way to guarantee that it wont cracks in use if the customer applies hand lotion while using...

Hi guys, I would like to consult with the group regarding a failure I am experiencing in one of my injection molded parts. The part is plastic shell enclosure made with injection molded PC/ABS (Chi Mei PC540), the screw socket is cracking in both of the bottom bosses. The cracks appear between...

Hi guys, I would like to consult with the group regarding a failure I am experiencing in one of my injection molded parts. The part is plastic shell enclosure made with injection molded PC/ABS (Chi Mei PC540), the screw socket is cracking in both of the bottom bosses. The cracks appear between...