Plastic-Molding QPA.xls

logitech plastic molding qpa version 1.0 1/4 2: plastics-moldingavg score:0%score subtotal:0counts:80yes=1 no=0n/a=xremarks 2raw material 1.1is the type of raw material same as specified on the drawing of molding part? 1.2is the rate of recycle material mixed according to the drawing of molding part? 1.3are there data to record the rate for recycle mixing process? 1.4is foreign material controlled to avoid contamination to raw material? drying 2.1does the supplier have the drying machine?critical 2.2is work instruction of drying process hanged near the equipment for easily refering? 2.3 is the drying spec (temperature and cycle time) from material supplier kept and according to the spec to dry the raw material? 2.4is the gage of temperature and cycle time of drying equipment calibrated? 2.5how to keep the raw material after drying to prevent humidity or contamination before molding? molding preparation (tooling preparation, trial shot, molding condition sheet) 3.1are the molding conditions of production released kept? 3.2does the tonnage of machine same as shown on molding condition sheet? 3.3 does the procedure of material cleaning at trial shot be sure to remove the previous material remained in barrel, feed line or hopper? 3.4is the machine no shown on the molding condition and compliant with the molding machine? 3.5is the screw size shown on the molding condition sheet and compliant with actual size? 3.6is the version shown on molding condition sheet? 3.7are there part name or part no. shown on molding condition sheet and compliant with the molding part? 3.8are there cavity no shown on molding condition sheet and compliant with actual cavity no? 3.9are there ccp or limited samples signed by customer for the comparison of trial shot and kept well to avoid damage? molding 4.1is sop of molding process hanged near the equipment for easily refering? 4.2is sip (standard inspection plan) of molding process hanged near the equipment for easily refering? 4.3 are the standard of molding condition (temperature, pressure, speed and stroke at each stage) according to those of production released? logitech plastic molding qpa version 1.0 2/4 4.4 if the standard of molding condition not according to those of sample submission, is there any engineering change request to record the change? 4.5is standard condition of nozzle heater shown on the molding condition sheet? 4.6is the setting of nozzle heater recorded and within the tolerance of standard condition? 4.7is standard condition of heater temperature shown for every stage in molding condition sheet? 4.8is the setting of heater temperature recorded and within the tolerance of standard condition? 4.9is standard condition of mold temperature shown for every stage in molding condition sheet? 4.10is the setting reading of mold temperature recorded and within the tolerance of standard condition? 4.11is standard condition of molding pressure shown for every stage in molding condition sheet? 4.12is the setting of molding pressure recorded and within the tolerance of standard condition? 4.13is standard condition of cycle time shown for every stage in molding condition sheet? 4.14is the setting of cycle time recorded and within the tolerance of standard condition? 4.15is standard condition of molding speed shown for every stage in molding condition? 4.16is the setting of molding speed recorded and within the tolerance of standard condition? 4.17is standard condition of stroke shown for every stage in molding condition sheet? 4.18is the setting of stroke recorded and within the tolerance of standard condition? 4.19is standard condition of total cycle time shown in molding condition sheet? 4.20is the setting of total cycle time recorded and within the tolerance of standard condition? 4.22does the flow rate of cooling water have a standard value and set within the tolerance of the standard value? 4.23does the temperature of cooling water have a standard value and set within the tolerance of the standard value? 4.24does the pressure of cooling water have a standard value and set within the tolerance of the standard value? 4.25does the pipe of cooling water be connected to the right position? 4.26is the cooling water screened before entering the molding tool? 4.27does equipment have lock system and implemented to prevent molding condition be changed when molding? 4.28does machine alarm when molding condition setting (pressure, temperature, etc) go out of spec at each stage? 4.29is there a temperature controller for each side of the mold? 4.30if parts fall freely, are they protected from being damaged? 4.31does degating methods by robot not damage the part on cosmetic, appearance and dimension? 4.32if the gate is removed manually, can the method avoid affecting the appearance, cosmetic and dimension? logitech plastic molding qpa version 1.0 3/4 4.33are the molding cycle counted and recorded? storage (product, oil, solvent) 5.1does the product not meet with specified requirements properly labeled as noncompliant material? 5.2do the defect product in process be separated and marked to prevent mixing together with finished goods ? 5.3 do the suspect product in process be separated and marked to prevent mixing together with finished goods and defect product ? 5.4are the finished goods well treated to avoid scratch or other damage before packaging? 5.5are the finished goods packed according to the requirement from customer before shipment? 5.6does solvent, oil and release agent, etc well stored to prevent contaminating the raw material and production? output (housing keeping, qc, document) 6.1is good housekeeping program defined? 6.2does the pmp accessible at molding machine for reference? 6.3does supplier inspect product as required by the pmp and/or the documented procedures? 6.4are inspection points required for handling non-compliant product and the acceptance standards clearly identified? 6.5 are inspector according to the procedure of first article inspection to inspect and record the defect item and quantity of product? 6.6are operator according to the procedure of self inspection to inspect and record the defect item and quantity of product? 6.7 are inspector according to the procedure of in-process inspection to inspect and record the defect item and quantity of product? 6.8are inspector according to the procedure of final inspection to inspect and record the defect item and quantity of product? 6.9are statistical studies performed to identify critical process parameters? 6.10 does the company have documented spc procedure which defines the appropriate rules and application used in process? 6.12are inprocess critical dimensions according to drawing and marked for spc control? 6.13was cpk greater than 1.33 for each inprocess critical dimension? 6.14are the measuring devices labeled and calibrated by schedule? 6.15 does the illumination in inspection area enough? logitechs requirement is white fluorescent lamps or diffused (indirect) sunlight and light intensity should be in the range 500 - 1000lux. maintenance 7.1 is there plan and checklist to maintain the drying equipment and perform certainly? (maintenance item should include the suggestion from equipment supplier) logitech plastic molding qpa version 1.0 4/4 7.2 is there plan and checklist to maintain the molding machine and perfor