Mishonga mitsva yakawanda uye yakawanda ine inoshanda inoshanda inoshanda mishonga yemishonga (API), iyo inoda kunyatsobatwa uye kushandiswa kwemidziyo yakakosha. Pano, Precision Polymer Engineering (PPE) inotarisa kuti sei kupatsanurwa mavharuvhu e butterfly kunopa mhinduro dzinodhura uye kunzwisisa kwakadzama kwezvakanakisa zvekuisa chisimbiso zvekugadzirisa chisimbiso.
Chikamu chikuru chemishonga mitsva iri kugadzirwa ine inoshanda zvakanyanya inoshanda inoshanda mishonga yemishonga (APIs), inotungamira mukukura kukuru kwekuda kwekugadzirwa kwayo.
Nekudaro, iyo cytotoxicity yeAPIs inopa matambudziko mazhinji, kusanganisira mabatirwo ezvisanganiswa uye kukosha kwekudyara mumidziyo yakasarudzika kuti vaone kuti vashandi nenzvimbo yavo yebasa hazvifumurwe.
Ndeipi simba rekufambisa rekugadzirisa zvirinani, uye ndeapi matambudziko akatarisana nevagadziri?
Kuwedzera kwehuwandu hwezvinhu zvinoshanda zvakanyanya uye mirairo yakasimba pamusoro pekushanda uye kuchengetedza kwezvakatipoteredza zvakakonzera kuwedzera kukuru kwekuda kwepasirese kwemidziyo yekuisa chisimbiso.
Mishonga iri kuwedzera inoshanda inoda kuti indasitiri iite shanduko huru pakugadzira dhizaini uye maitiro ekushanda kuti ive nechokwadi chekuchengetedza. Nekudaro, zvinotarisirwa zvazvino zvemazinga emidziyo zvinowanzopfuura nekure kugona kwemidziyo yakagadzirwa uye yakagadzirwa makore mashoma apfuura.
Pakusarudza zvikamu zvekuisa chisimbiso zvezvishandiso zvakakwirira, munhu anofanirwa kufunga nezvematambudziko anogona kuitika kana paine kudonha kana kutadza kuvhara vharafu:
Zvinonyanya kushanda zvinoshanda senge mahormone, retinoids, mamwe maantibioti uye mamwe anesthetics anoda kudzora kwakakosha panguva yekugadziriswa. Izvi zvinotsanangurwa neOccupational Exposure limit (OEL) kana Occupational Exposure Band (OEB) inopihwa kune inoshanda zvinodhaka.
Nhoroondo, midziyo yekuzvidzivirira yave ichishandiswa kudzivirira njodzi. Zvisinei, kunyange zvazvo zvisingarambiki zvakakosha kupa dziviriro kune vashandi, kune ngozi yekusvibiswa-kusvibiswa munzvimbo yebasa nekuda kwekutengeswa kwechigadzirwa kubva kune zvipfeko zvekudzivirira uye kusagadzikana kwekushanda.
Kuti udzivirire vashandisi vemidziyo uye kuderedza kusvibiswa kwechigadzirwa kubva kumamicrograms kuenda ku nanograms, zvinodikanwa kuti indasitiri yemishonga ifambise nzira dzayo dzekutakura.
Nekudaro, matambudziko anogona kumuka paunenge uchiedza kutsvaga zvigadziriso zvemidziyo iripo uye zvivakwa. Zvichienderana nekufunga uku, PPE inotenda kuti kuwedzera SBV kunogona kuratidza kuve mhinduro inodhura, kunyanya kana nzvimbo nemidziyo iripo inodzikamisa sarudzo dziripo. Aya mavharuvhu aratidza kuti anokwanisa kuzadzisa zvinangwa zvemukati zvinodiwa kubata iyo API.
Panguva yekuendeswa kwehupfu hunobudirira kubva pane imwe nhanho kuenda kune inotevera, SBV inoderedza huwandu hwezvikamu zvinoratidzwa kumhepo. Chinhu chakakosha cheese maSBV ndechekuti anoumbwa nehafu mbiri dzakabatanidzwa pamwechete, dzinoti inoshanda "Alpha" unit uye inongoita "Beta" unit.
Hafu imwe neimwe inoumbwa nehafu ye "butterfly" disc, uye butterfly disc yakavharwa pamuviri mukuru nechisimbiso che elastic kuti iite nzvimbo yakavharwa zvakanyanya. Zvisimbiso zveElastomeric zvinoshandiswa se "zvigaro" mukati mehafu yega yega, uye kana zvabatanidzwa pamwechete, zvinopa chisimbiso chinoshanda pakati pemahafu anoshanda uye asingaiti.
Mavharuvhu nezvinhu zvawo elastomer anowanzo kuoneswa kune akasiyana makemikari uye zvinonyungudutsa, senge corrosive cleaning agents. Naizvozvo, iko kuenderana kwemakemikari eelastomer zvinhu mune chero yekuisa chisimbiso maitiro akakosha ekugadzirisa.
Vagadziri vevharuvhu vagara vachivimba nezvinhu zvakaita seEPDM (ethylene propylene terpolymer) sechinhu chinodiwa chezvigaro zvevharuvhu zveSBV. Nekudaro, sezvo kushanda kweAPIs kunowedzera, zvakawanda elastic elastomer zvinhu zvinodiwa.
PPE inokurudzira kushandiswa kwezvigaro zvevharuvhu zveperfluoroelastomer (FFKM) mukushandisa kwemakemikari akadaro. Iyo yakanakisa mechanical zvimiro zveFFKM, yakasanganiswa neinenge yepasirese kemikari kuramba (yakafanana nePTFE) uye yakanakisa yekupisa zvivakwa (kubva -30 °C kusvika +325 °C), inoita kuti ive yakanaka kune maSBVs anoshandiswa mune yakakwirira-inoshanda API kugadzirisa nharaunda sarudza.
Kuburikidza nemichina iri nyore uye zvinhu zvinotariswa, zvakadai sekushandisa chigaro cheFFKM panzvimbo yechigaro cheEPDM muSBV, zvinokwanisika kuwedzera simba rekushanda revhavha yepamusoro yehermetic pasina kudhura patsva.
Nguva yekutumira: Jul-08-2021
