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Hello All, Thank you for the insights that you've shared to us. I have a new development on our issue on the strands. Since we have supplied another source from another mill to our customer who experienced slippage even though it has lesser oil and dry; the second supplier informed us that they...

Ingeniuty, Once casting has a total sqm of 146.4. B. CROSS SECTIONAL PROPERTIES of slab Width = 1,196mm Height of plank = 60mm Height of rib = 70mm JBP

Dik, Our customer reported to us that Test results of the 11 castings show that they reach only 60% of the designed capacity thus they cannot deliver these to their customers. Please be informed that we received the slippage report from them 14 days after the first slippage occur and now...

Ingeniuty, I will ask the end-user these questions. With regards to them measuring the slippage, once they cut the concrete and lifted it with a crane they measure the strand slippage on how many mm it will slip on the inside as attached...

Hello Everyone, I have a new development regarding our problem on the slippage. We have a new brand from another mill of PC Strands supplied to our customer who has slippage problem; the new strands has no visible and touchable oil in it which our customer agreed. After they casted and tested...

Hello everyone, One of degreasing firm here informed me that it is possible to dip the coils in an emulsifiable degreaser. I would like to ask for your insights regarding the penetration of the degreaser for the whole coil on degreasing bath. TYPICAL CHARACTERISTICS: Specific Gravity @ 15.6...

Hello everyone, One of degreasing firm here informed me that it is possible to dip the coils in an emulsifiable degreaser. I would like to ask for your insights regarding the penetration of the degreaser for the whole coil on degreasing bath. TYPICAL CHARACTERISTICS: Specific Gravity @ 15.6...

Ingeniuty, Thank you for the response, this technique your are applying for a patent can degrease the strands even the coil is intact? JBP

Hello Dik, We have tapped degreasing firms that also supply rust preventive Oil. They informed me that dipping process with caustic solution is not possible since the strands should be uncoiled and not applicable on this process and will not penetrate the inside of the coil. The strands cannot...

Compositepro, Thanks for the response, may you inform me the basic requirements for this solution?

Hi Everyone! I have a problem with a contaminant (Water-Soluble Rust Preventive Oil) -Chinese Standard SH/T 0692-2000 applied to the Prestressed Concrete Strands we are currently supplying. We never encountered this problem before that the oil is not vaporizing through air exposure since all of...

Ingeniuty, Thank you for you advice. Since the coils cannot be returned to China, we shall degrease the coils as our customer wants to solve this issue as soon as possible. May you advice us how to degrease the coil without harming the strands and not take too much labor?

Our manufacturer informed us that we shall apply kerosene and wipe it after to dry it out. If we dip the whole coil in solvent(acetone), should we wipe it off after or just let it dry? Dik, Which solvent do you think we can dip it into and not wipe it off after to reduce work? Thank you.

Ingeniuty, Thank you for your response. Our Manufacturer is from China and we have sourced to them with 4 shipments before and only now our customer(end-user) has experienced this issue. Our Manufacturer informed us that we shall apply kerosene and wipe cloth after to clean the residue. May I...

We are a retailer of Prestressed Concrete Strands 9.5mm (ASTM A416). Our customer experienced slippage on their Precast Half Slab and bonding problem with concrete due to oiled Strands. Our supplier informed us that they applied Water-Soluble Oil and it will be dried by natural air drying for...