Fluoroelastomer yakabudirira kugadzirwa uye kuiswa mukugadzirwa kwemaindasitiri neDuPont pakati pe-1950s kweanopfuura makore makumi matanhatu. Iyo ine yakanakisa kupikisa mafuta, kupisa kwekushisa kwepamusoro, kuomeswa kweasidhi, alkali resistance, radiation resistance, corrosion resistance, yakasimba oxidant resistance, yakasimba makemikari kuramba, kusimba kwegasi kwakanaka, kunaka kwemuviri uye mashandiro emagetsi, uye kudzikisira kwemagetsi, kudzikisira kwakaderera uye deformation zvachose. Seyakakosha yekugadzira rabha, inoshandiswa zvakanyanya muindasitiri yemakemikari, aerospace, mota, petroleum indasitiri, muchina, zvemagetsi nezvimwe minda. Fluorine rabha ine mashandiro akanaka uye yakafara tarisiro yekushandisa. Yakazvimiririra yakagadziridzwa neChina yakaderera-tembiricha fluoroether rubha yakashandiswa zvakabudirira mukugadzirwa kweLong Kurume nhevedzano yekumisikidza mota servo michina zvisimbiso, pamwe nekuunganidzwa mujeti dzekurwira, matangi matsva papombi yemafuta, magetsi edunhu sheathing nezvimwe zvinhu. Mukushandiswa kwehurumende kwezvikamu zvemotokari, kuwedzera zuva nezuva, mundima yeindasitiri zvishoma nezvishoma kusimudzira kushandiswa kwefluorine rabha.
Kunyange zvazvo rabha yefluorine ine hunyanzvi hwekupikisa midhiya uye tembiricha yakakwira sezvataurwa pamusoro apa, pane zvimwe zvisizvo uye zvinonetsa mukugadzirisa uye kugadzira zvigadzirwa zverabha yefluorine, pakati peiyo yakajairika inopiswa neyakafa zvinhu pakusanganiswa, yakavhurika yekunamira inonamira rollers, dzimwe nguva madiki madiki madiki anowanikwa pakucheka nekutarisa mushure mekunge firimu raburitswa, zvigadzirwa zviri nyore kutsenga, kutsemuka, kuputika, kutsemuka, kuputika, kuputika, kuputika kwezvimedu. kushaikwa kwerabha, deformation yechigadzirwa, yakakomba mold staining uye zvimwe zviitiko zvinokanganisa kunaka kwechigadzirwa. Hunhu hwezvigadzirwa zvinokanganiswa.
Mukupindura kune zvisiri izvo zviri pamusoro mukuita kwekugadzira, mhinduro dzinotevera dzakaitwa.
Pfungwa 1. Yakasanganiswa fluorine rubber yakafa zvinhu
Chikonzero chekusangana kwerubha kusanganisirwa nesarufa yero kana sarufa yero zvigadzirwa, mabhizinesi mazhinji haana yakakosha yekunatsa fluorine rabha muchina, kazhinji kuchenesa mamwe sarufa yero yerubha zvinhu, kucheneswa hakusi munzvimbo, kana zvimisikidzo zvakasvibiswa nesarufa yero kana mvura, kuitira kuti inogona kusanganiswa neiyo fluorine rabha inosimudzira inokonzerwa nekupisa kwemvura. kuora. Solution, yakanakisisa yakakosha muchina, kana zvisiri, inofanirawo kuva mukushandurwa kwefluorine rabha isati yacheneswa, inofanira kunge yakachena zvachose baffle ndiro uye ndiro yemidziyo, zvachose kudzivisa kusangana nemvura nesarufa yero, zvinoshandiswa kushandiswa kwezvishandiso zvakakosha, chinhu chipunu, kudzivirira kusvibiswa kwemuchinjikwa. Chengeta calcium hydroxide uye magnesium oxide yakavharwa uye yakagadzirira kushandisa.
Point 2. The sticky roller phenomenon
Kunyanya mukusanganisa pamushini wekuvhura, iyo yerubha zvinhu zvakaputirwa mumashure ekumashure, kana panguva imwechete yakaputirwa pamberi uye mushure mema roller maviri, zvichikonzera kuti iyo yaimbova rabha zvinhu haigone kutendeuka kunatswa, uye iyo yekupedzisira neakawedzera mumiriri inodzvanywa nyore mumaflakes uye inodonha, zvichikonzera kupararira kusina kuenzana. Chikonzero chikuru cheiyo fluorine rubber zvinhu inonamira kune ma rollers ndeye yakaderera Menny kana yakaderera molecular ye fluorine rabha. Mhinduro yedambudziko iri ndeyekusarudza rabha mbishi ine viscosity inosvika makumi manomwe, uye kushandisa rabha mbishi ine yakamanikana molecular uremu kugovera, uye wobva wawedzera kadikidiki keBrazilian wax kana fluorine wax kana yakaderera molecular uremu polyethylene mufomula, iyo inogona zvakare kugadzirisa inonamira roller phenomenon.
Point 3. Nezve madiki machena mavara murubha inosanganiswa
Imhaka yevamwe upfu kupararira fluorine rabha compounding mumiririri haisi yunifomu, kana nokuda upfu mwando caking, akadai asidhi absorbers calcium hydroxide, magnesium oxide uye diatomaceous pasi, barium sulfate, etc., mhinduro, kudzivirira compounding mumiririri mwando uye kusimbisa mutete pasi muitiro.
Pfungwa 4. Chigadzirwa chacho chiri nyore kubvarura
Chikonzero, chinogona kunge chakanyanya kukora burr, kuchekerera kana kubvarura, kana mold yakanyanyisa kusimba, kunze kweiyo mold burr zvikamu zvakanamira muforoma, zviri nyore kubva pachigadzirwa uye burr isati yabvarura, simba risina kuenzana paunotanga mold, nyore kubvarura chigadzirwa. Dzimwe nguva iyo mold cavity processing ine hutsinye, kana iyo inonamira zvinhu inonamira kune mold, uye kana vulcanization yapera, zvinokonzera kunetsa kubvisa mold uye kubvarura chigadzirwa nyore. Pamusoro pezvo, tembiricha yevulcanization yakakwira zvakanyanya, izvo zvinozoita kuti zvigadzirwa zvive brittle uye nyore kubvarura. Nokuda kwekusagadzikana kwepamusoro, kunogona kugadziriswa kubva kune zvinotevera: mold processing precision inofanira kuva yakanaka mhango roughness Ra isingasviki 0.8, gaka rakakodzera harifaniri kunge rakanyanya kukura, vulcanization tembiricha yekudzora yakasara pakati pe170 madhigirii yakanaka, uye huremu hwerabha hunofanira kuva hwakarurama.
Pfungwa 5. Shrinkage uye rekutsemuka dambudziko
Imhaka yekudzvinyirirwa inobviswa kana mold yakavhurwa, fluorine rubber shrinkage, uye chikamu cheburr chakanamirwa muforoma nechiso chiri pakati, saka pakati pechigadzirwa chikamu uye burr ibudise simba rekusimba, kuitira kuti chigadzirwa uye burr kupatsanurwa, kana kuputika kwemukati kuchiwedzerwa kune chikamu chechigadzirwa, kunokonzera shrinkage uye kuputika chiitiko. Mhinduro ndeyekudzikisa vulcanization tembiricha nenzira kwayo, sarudza iyo Menny viscosity munenge 70 [ML1 + 4] 121 madhigirii, nepo mold fit degree inofanirwa kunge yakakodzera, kwete yakasununguka uye yakanyanya kusimba.
Point 6. Mupendero wakafanana nekupisa
Iyo tembiricha yevulcanization yakakwira zvakanyanya, kunyanya gobvu zvigadzirwa, zvakakodzera kudzikisa tembiricha yevulcanization inogona kukundwa.
Point 7. Pane maronda pajoinhi
I t imhaka yechikamu chechikamu chekunamatira hachina kusanganiswa zvachose, kana nekuda kwekunamatira tambo ine tsvina kana kusvibiswa kwemafuta, mhinduro ndeyekuchengeta preformed adhesive strip mukuchengetedza, kutakura, kurodha glue yakachena, kudzivirira kusvibiswa.
Pfungwa 8. Kushaya glue
Iyo ine hukama nechimiro che mold uye liquidity yeglue. Iyo yakavharwa mold inowanzoita kushaya glue pane yakavhurika mold. Mhinduro ndeyekugadzirisa liquidity yerabha uye kuvhura gomba rinopinza mhepo mumhango ye mold.
Pfungwa 9. Chigadzirwa deformation
Imhaka yekuti fluorine rubber shrinkage rate yakakura, mushure mekuumba chigadzirwa shrinkage anisotropy, iyo coefficient yekupisa kwekuwedzera kwerabha munzira dzakasiyana dzakasiyana, maviri vulcanization maitiro anozogadzira kuwedzera kuyambuka-kubatanidza, kunyanya chikamu chevulcanization pasi pesarufa, maviri vulcanization yechigadzirwa, sovulcanization yechigadzirwa, ichipa nguva yakazara yekuchinjika, kubatanidza nguva yekupfuura. kudzivirira maviri vulcanization yechigadzirwa deformation.
Point 10.Mold stain serious phenomenon
Isu tinowanzo shandisa iyo makumi maviri neshanu rudzi rwefluorine rubber, phenol vulcanization system, mune vulcanization process ichagadzirwa HF, iasidhi yakasimba kwazvo, ine corrosive effect paforoma, fomula yekuwedzera acid inonyudza ndeyekutora HF inogadzirwa, kudzivirira kusvibiswa kweforoma. Mhinduro ndeyekushandisa yakakwana calcium hydroxide uye magnesium oxide zvinoenderana neformula, dosi yacho inowanzoita zvikamu zvitanhatu nezvikamu zvitatu, uye wakisi yeBrazil inogona kuwedzerwa kune formula, iyo inogona kutamira kune rabha pamusoro panguva yevulcanization kuumba firimu kudzivirira mold kuti isasvibiswa.
Izvo zviri pamusoro gumi zvakajairika zvisiri izvo mukugadzira uye kugadzirisa fluorine rabha zvinogona kugadziriswa nematanho akasiyana.
