Dear Len /Dwight,
I was given the design of the tray by the customer and ordered no further changes to be made to the original design...when the first run was done, I found the tray to be flimsy and it flexes because of the length..I then went back to my customer and told them the shortfalls..again they reiterated that the original design & weight cannot be changed and so if adding ribs would cause the tray to be strengthened but at a cost of say 5% of the total weight then it is acceptable but nothing more.
Now Len has suggested that adding mineral fillers would strengthen the properties of PP Recycle, I may want to go in that direction as additional cost in producing the tray will be beared upon by me.....I'll consult with my injection engineer as that is an option, I would now want to check with my PP recycle supplier to see if the material that he provides contains enough fillers or what not.
Now I have some doubts....
1.If I were to use mineral fillers, will that in any way disrupt the properties of PP recycle since the ratio of PP recycle has decreased because of the additional mineral fillers
2. Will adding mineral fillers affect my cycle time, the cycle time currently is 45sec
3. Will the addition of fillers affect the durability of the tray ? PP recycle without fillers & PP recycle with fillers, will they last approximately the same lifetime ? any degradation in terms of durability as I would not want to compromise on that either since this is my first project with the customer.
Thank you again guys