http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20110028322-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d35d79e57f175585fb59e4969bfe01be |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F16P1-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B23K9-322 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F9-061 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F9-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B23K9-321 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C39-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C39-22 |
| filingDate | 2011-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3366a8b5b37192d8ec787ebda8f74f48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0b85c58761072adc87c9ab4e2ccc19e7 |
| publicationDate | 2011-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20110028322-A |
| titleOfInvention | Manufacturing method of polyurethane lining water valve for ozone resistance |
| abstract | The present invention is a method for lining each part with an ozone-resistant polyurethane so that the inner surface of the body, the inner surface of the cover and the outer surface of the disk to withstand the strong corrosion force of ozone water, which is the fluid contact portion of the water valve. It is about. An object of the present invention is to provide a bubble or interface that can reduce the ozone resistance of the polyurethane itself in the process of lining the polyurethane for ozone with a high viscosity of the ozone-resistant polyurethane on the complex inner surface and inner surface of the water separator valve. It provides a way to prevent this from happening. Still another object of the present invention is to increase the density of the ozone-resistant polyurethane and improve the productivity by performing a polyurethane lining for ozone-resistant polyurethane lining on the outer surface of the disk by a press method. To provide. The method for manufacturing a polyurethane lining water-reducing valve for ozone includes the steps of: providing a mold corresponding to the inner surface of the body, a cover mold corresponding to the inner surface of the cover, and a mold corresponding to the outer surface of the disk; Mold assembly step to join, mold preheating step to heat the body and the cover to which the mold is bonded to a temperature of 90 ~ 100 ℃, 20 wt% TDI (C 9 H 6 O 2 N 2 ) and PTMG (C 4 H 8 O) Stirring 80 wt% of prepolymer 100 wt% and UV stabilizer (C 6 H 5 COC 6 H 5 ) 0.8 ~ 2.8 wt% at 90 ~ 100 ℃ for 25 to 35 minutes, the stirring solution Mixing 8 to 14 wt% of a curing agent (C 9 H 4 N 2 S 2 ) at 90 to 100 ° C., tilting the body and the cover to which the mold is coupled by 5 to 10 ° so that the raw material inlet is at the top, the mixed solution Is injected into the inlet of the mold, which blocks each outlet when the material flows out of the outlet of the mold. , Seating the disk mold on the press plate, injecting polyurethane for ozone into the disk mold, covering the disk mold and then pressurizing with the press, the body and the cover and the disk at 90 ~ 100 ℃ for 2 to 4 hours The first aging step to maintain, after removing the mold, and the second body aging step to maintain the valve body and cover and the disk and the disk formed in ozone polyurethane for 5 to 6 hours. According to the present invention, a high-viscosity ozone-resistant polyurethane having good ozone resistance even at a high concentration of about 8 ppm of ozone water can be lined on the inner surface, cover and disc of a complex water-reducing valve. The inherent properties of the polyurethane for ozone can be maintained even after the lining is completed. |
| priorityDate | 2011-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.