Kushandiswa kweSodium CMCfor Casting Coatings

Muindasitiri yekukanda,sodium carboxymethyl cellulose(CMC) inoshanda sechinhu chakakosha muakasiyana ekukanda machira, ichipa zvakakosha mashandiro anobatsira kune kunaka uye kuita kwemaitiro ekukanda. Kukandira machira anoiswa kune mold kana mapatani mumasikirwo ekuvandudza kupedzisa kwepamusoro, kudzivirira kuremara, uye kufambisa kuburitswa kweakakanda kubva kuforoma. Heano maitiro e sodium CMC inoshandiswa mukukanda machira:

1. Binder uye Adhesion Promoter:

• Kugadzira Firimu: Sodium CMC inoumba firimu rakatetepa, rakafanana pamusoro pezviumbwa kana mapatani, ichipa yakatsetseka uye inogara yakasimba yekupfeka layer.
• Kunamatira kune Substrate: CMC inokwidziridza kunamatira kwezvimwe zvinhu zvekupfeka, senge refractory zvinhu uye zvekuwedzera, kune mold pamusoro, kuve nechokwadi chekufukidzira yunifomu uye kuchengetedzwa kunoshanda.

2. Surface Finish Enhancement:

• Surface Smoothing: CMC inobatsira kuzadza kusakwana kwepasi uye kusarongeka pane mold kana mapatani, zvichikonzera kutsvedzerera kwekukanda nzvimbo nekuvandudzwa kwedimensional.
• Kudzivirirwa Kukanganisa: Nekudzikisa kuremara kwepasi senge mapini, makatsemuka, uye jecha inclusions, CMC inobatsira mukugadzirwa kwemhando yepamusoro yekukandira ine yepamusoro yepamusoro pekupedzisira.

3. Kudzora Hunyoro:

• Kuchengeta Mvura: CMC inoshanda senge inochengetedza hunyoro, ichidzivirira kuoma nguva isati yakwana kwekukandira machira uye kuwedzera hupenyu hwavo hwekushanda pane mold.
• Yakaderedzwa Kutsemuka: Nekuchengetedza hunyoro panguva yekuomesa, CMC inobatsira kuderedza kuputika uye shrinkage yekukanda machira, kuve nechokwadi chekufukidzwa kweyunifomu uye kunamatira.

4. Kugadziridza Rheology:

• Viscosity Control: Sodium CMC inoshanda se rheology modifier, inodzora viscosity uye kuyerera zvimiro zvekukanda machira. Inofambisa kushandiswa kwakafanana uye kuomerera kune yakaoma mold geometries.
• Thixotropic Behaviour: CMC inopa thixotropic zvivakwa kune yekukandira machira, ichivabvumira kukobvu payakamira uye kuwanazve kuyerera kana ichidzvinyirirwa kana kuiswa, ichiwedzera kushanda kwekushandisa.

5. Release Agent:

• Mold Release: CMC inoshanda semumiriri wekuburitsa, ichigonesa kupatsanurwa kuri nyore kwekukanda kubva kuforoma pasina kunamatira kana kukuvara. Iyo inoumba chipingamupinyi pakati pekukanda uye mold nzvimbo, kufambisa yakachena uye yakatsetseka dhizaini.

6. Kuenderana neZviwedzerwa:

• Additive Incorporation: CMC inoenderana neakasiyana ekuwedzera anowanzo shandiswa mukukandira machira, senge refractory zvinhu, mabhainda, mafuta ekuzora, uye anti-veining agents. Iyo inobvumira iyo homogeneous kupararira uye kushandiswa kunoshanda kweizvi zvinowedzera kuti uwane zvinodiwa zvekukanda zvivakwa.

7. Mafungiro Ezvakatipoteredza uye Chengetedzo:

• Non-Toxicity: Sodium CMC haina chepfu uye ine hushamwari, ichiisa njodzi shoma kune vashandi uye nharaunda panguva yekukanda maoparesheni.
• Regulatory Compliance: CMC inoshandiswa mukukandira machira inoenderana nezviyero zvemitemo uye zvakatemerwa zvekuchengetedza, mhando, uye kuita mune yekutanga kunyorera.

Muchidimbu, sodium carboxymethyl cellulose (CMC) inoita basa rakakosha mukukandira machira nekupa binder zvivakwa, kukwidziridzwa kwepamusoro, kudzora hunyoro, rheology shanduko, kuburitsa mumiriri mashandiro, uye kuenderana nezvinowedzerwa. Hunhu hwayo hwakasiyana-siyana hunoita kuti ive chinhu chakakosha muindasitiri yekuvakisa yekugadzira emhando yepamusoro castings ane chaiwo mamesheni uye yepamusoro yepamusoro mhando.