Recent content by ras85

hi friends is there anyone who knows where i can find SEW410 standard? as its an old standard i couldn't find any thing via search. also it is in german or english?

thanks

dear frinds im searching about shrinkage allowance of high cr cast iron. i just found the range of shrinkage allowance of 18-21 mm/m in cast iron handbook. please let me know how i can find more details about shrinkage allowance of high cr cast iron?

thanks!

hi friends in a pump data sheet, there is a material with X39CrMo17-1 HV500+80 designation, is there anyone who knows what 80 is stand for?

thanks friends, is there any experience that how much time after applying, blister of painting happens? it depends on painting thickness?

t my company, there was a pump with epoxy painting, because of painting low quality, pump was painted with polyurethane painting, but after just 20 days the painting blisters. It seems there are different reasons such as, not prepare surface properly, or three layer painting should be applied(i...

thanks, its so helpful!

i need to select material for pump shaft in sulfuric acid at 98% concentration and 120 C. i would like to know any one has experience on chrome plating coating on this application or maybe kindly suggest another solution.

actually i don't have any experience of coating application. i mean how i can achieve the correct film thickness? there are some parameters like diameter nozzle, spray pressure and .... is there any table that specify these parameters for different film thickness?

yes but how i can get this thickness for each layer? http://eng-tips.com/viewthread.cfm?qid=339403

sorry again! i choose three layer epoxy coating, primer coat: polyamine primer containing zinc dust, thickness: 75 μm intermediate coating: polyamine, thickness: 100 μm topcoat: polyamine cured (high built epoxy), thickness: 100 μm

sorry! its 100 μm thickness, the pump casing is grey cast iron.

please let me know how i can achieve the desired coating thickness? i need to coating a pump casing with a 100 micro thickness.

hi friends is there any one that has information about H-30 hard iron material, like standard and chemical composition?