iindaba

Izinto eziqinisayo ziyinxalenye exhasa imveliso ye-FRP, nto leyo emisela ngokusisiseko iimpawu zoomatshini zemveliso eqhekekileyo. Ukusetyenziswa kwezinto eziqinisayo kukwanefuthe elithile ekunciphiseni ukushwabana kwemveliso kunye nokunyusa ubushushu bokuguqulwa kobushushu kunye namandla aphantsi okuchaphazela ubushushu.

Kuyilo lweemveliso ze-FRP, ukukhethwa kwezinto zokuqinisa kufuneka kuqwalasele ngokupheleleyo inkqubo yokubumba imveliso, kuba uhlobo, indlela yokubeka kunye nomxholo wezinto zokuqinisa zinempembelelo enkulu ekusebenzeni kweemveliso ze-FRP, kwaye ngokusisiseko zimisela amandla oomatshini kunye ne-elastic modulus yeemveliso ze-FRP. Ukusebenza kweemveliso ezixutyiweyo kusetyenziswa izinto zokuqinisa ezahlukeneyo nako kwahlukile.

Ukongeza, ngelixa kuhlangatyezwana neemfuno zokusebenza kwemveliso kwinkqubo yokubumba, kufuneka kuqwalaselwe neendleko, kwaye kufuneka kukhethwe izixhobo zokuqinisa ezingabizi kakhulu kangangoko kunokwenzeka. Ngokubanzi, ukungazikhethi iintambo zefayibha yeglasi kubiza kancinci kuneefayibha; ixabisoiimathi zefayibha yeglasiingaphantsi kuneyelaphu, kwaye ukungenwa kakuhle kulungile. , kodwa amandla ayo aphantsi; ifayibha ye-alkali ixabisa kancinci kunefayibha engena-alkali, kodwa ngokwanda komxholo we-alkali, ukumelana kwayo ne-alkali, ukumelana nokugqwala, kunye neempawu zombane ziya kuncipha.

Iindidi zezinto zokuqinisa ezisetyenziswa rhoqo zezi zilandelayo

1. Ukuzulazula ngefayibha yeglasi engajijwanga

Ukusebenzisa i-arhente yokulinganisa eqinisiweyo, engajijwangaukuhambahamba ngefayibha yeglasiinokwahlulwa ibe ziintlobo ezintathu: isilika eluhlaza eqhotsiweyo, i-direct untwisted roving kunye ne-bulked untwisted roving.

Ngenxa yoxinzelelo olungalinganiyo lwemicu ebotshelelweyo, kulula ukugoba, nto leyo eyenza iluphu ekhululekileyo ekupheleni kwesixhobo se-pultrusion, nto leyo echaphazela inkqubela phambili ethe tye yokusebenza.

Ukujikajika okungajijwanga ngqo kuneempawu zokujija kakuhle, ukungena ngokukhawuleza kwe-resin, kunye neempawu ezintle zoomatshini kwiimveliso, ngoko ke uninzi lwee-roving ezingajijwanga ngqo zihlala zisetyenziswa okwangoku.

Ii-bulked rotavings ziluncedo ekuphuculeni amandla anqamlezileyo eemveliso, ezifana nee-crimped rotavings kunye nee-air-textured rotavings. Ii-bulk rotaving zinamandla aphezulu ee-constant long fibers kunye ne-bulkness yee-short fibers. Zizinto ezinokumelana nobushushu obuphezulu, i-thermal conductivity ephantsi, i-corrosion, umthamo ophezulu kunye nokusebenza kakuhle kokuhluza. Ezinye ii-bulked zisakhiwe kwi-monofilament state, ngoko ke zinokuphucula umgangatho womphezulu weemveliso ezi-pultruded. Okwangoku, ii-bulked rotations zisetyenziswa kakhulu ekhaya nakwamanye amazwe, njengee-warp kunye nee-weft yarns zelaphu ezilukiweyo zokuhombisa okanye zemizi-mveliso. Zingasetyenziselwa ukuvelisa ukungqubana, ukugquma, ukhuseleko okanye izinto zokuvala.

Iimfuneko zokusebenza kwe-rovings yefayibha yeglasi engajijwanga ukuze kufakwe i-pultrusion:

(1) Akukho nto ingaphaya kwe-overhang;

(2) Uxinzelelo lwefayibha luyafana;

(3) Ukuqokelelana okuhle;

(4) Ukumelana nokuguguleka kakuhle;

(5) Zimbalwa iintloko ezaphukileyo, kwaye akulula ukuziguqula;

(6) Ukufuma kakuhle kunye nokufunxwa kweresin ngokukhawuleza;

(7) Amandla aphezulu kunye nokuqina.

I-fiberglass spray ihambahamba 

2. I-Glass fiber mat

Ukuze iimveliso ze-FRP ezixutyiweyo zibe namandla aneleyo okuwela, kufuneka kusetyenziswe izinto zokuqinisa ezifana ne-strand mat eqoshiweyo, i-strand mat eqhubekayo, i-combined mat, kunye nelaphu lentambo elingajijwanga. I-strand mat eqhubekayo yenye yezona zinto zisetyenziswa kakhulu ngoku kwi-fiber yeglasi. Ukuze kuphuculwe inkangeleko yeemveliso,imathi yomphezulungamanye amaxesha isetyenziswa.

I-continuous strand mat yenziwe ngee-layers ezininzi ze-continuous glass fibers ezibekwe ngokungacwangciswanga kwisangqa, kwaye ii-fibers zidityaniswe nezincamathelisi. I-upper felt yi-felt ebhityileyo efana nephepha eyenziwe ngokubeka ngokungacwangciswanga nangokulinganayo imicu enqunqiweyo yobude obungaguqukiyo kwaye idityaniswe nesincamathelisi. Umxholo we-fiber yi-5% ukuya kwi-15%, kwaye ubukhulu buyi-0.3 ukuya kwi-0.4 mm. Ingenza umphezulu wemveliso ube mpuluswa kwaye ube mhle, kwaye iphucule ukumelana nokuguga kwemveliso.

Iimpawu zeglasi fiber mat zezi: ukugquma kakuhle, kulula ukufunxwa nge-resin, umxholo ophezulu weglue

Iimfuno zenkqubo ye-pultrusion kwi-mat yefayibha yeglasi:

(1) Inamandla aphezulu oomatshini

(2) Kwiimathi ezinqunqiweyo ezibotshelelwe ngeekhemikhali, i-binder kufuneka imelane nemiphumo yeekhemikhali kunye nobushushu ngexesha lokudipha kunye nokulungiselela ukuqinisekisa amandla aneleyo ngexesha lenkqubo yokwenza;

(3) Ukufuma kakuhle;

(4) Ukungaguquguquki kangako kunye neentloko eziphukileyo ezimbalwa.

Imathi ethungiweyo yeFiberglass

Umati odityanisiweyo wefayibha yeglasi

3. Umgangatho wefayibha yepolyester

I-polyester fiber surface felt luhlobo olutsha lwezinto zokuqinisa ifayibha kwishishini le-pultrusion. Kukho imveliso ebizwa ngokuba yi-Nexus e-United States, esetyenziswa kakhulu kwiimveliso ze-pultruded ukuze ithathe indawo yazo.iimathi zomphezulu wefayibha yeglasiInesiphumo esihle kwaye ixabisa kancinci. Isetyenziswe ngempumelelo iminyaka engaphezu kwe-10.

Iingenelo zokusebenzisa umati we-polyester fiber tissue:

(1) Ingaphucula ukumelana nempembelelo, ukumelana nokugqwala kunye nokumelana nokwaluphala kwemveliso emoyeni;

(2) Ingaphucula imeko yomphezulu wemveliso kwaye yenze umphezulu wemveliso ube buthelezi;

(3) Ukusetyenziswa kunye neempawu zokuxinana kwefeliti yomphezulu wefayibha yepolyester zingcono kakhulu kunefeliti yomphezulu weglasi ye-C, kwaye akulula ukuqhekeza iziphelo ngexesha lenkqubo ye-pultrusion, okunciphisa iingozi zokupaka;

(4) Isantya se-pultrusion sinokunyuswa;

(5) Inganciphisa ukuguguleka kwesikhunta kwaye iphucule ubomi benkonzo yesikhunta

4. Iteyiphu yelaphu leglasi enefayibha

Kwezinye iimveliso ezikhethekileyo ezixutyiweyo, ukuze kuhlangatyezwane neemfuno ezithile zokusebenza ezikhethekileyo, kusetyenziswa ilaphu leglasi elinobubanzi obungaguqukiyo kunye nobukhulu obungaphantsi kwe-0.2mm, kwaye amandla alo okutsalwa kunye namandla anqamlezileyo alungile kakhulu.

5. Ukusetyenziswa kwamalaphu anomlinganiselo wesibini kunye namalaphu anomlinganiselo wesithathu

Iimpawu zoomatshini ezinqamlezileyo zeemveliso ezidityanisiweyo ezidityanisiweyo azilunganga, kwaye ukusetyenziswa kokulukwa kweendlela ezimbini kuphucula ngokufanelekileyo amandla kunye nokuqina kweemveliso ezidityanisiweyo.

Iintambo ezigobileyo neze-weft zale ngubo ilukiweyo azidibani, kodwa zidibene nenye into elukiweyo, ngoko ke zahluke ngokupheleleyo kwilaphu leglasi lendabuko. Iintambo kwicala ngalinye zikwimeko ye-collimated kwaye azenzi Nakuphi na ukugoba, kwaye ngaloo ndlela amandla kunye nokuqina kwemveliso edibeneyo, kuphezulu kakhulu kuneyomxube owenziwe ngefelt eqhubekayo.

Okwangoku, iteknoloji yokuluka eneendlela ezintathu iye yaba yeyona ntsimi yophuhliso lwetekhnoloji ekhangayo nesebenzayo kushishino lwezinto ezidityanisiweyo. Ngokweemfuno zomthwalo, ifayibha yokuqinisa ilukwa ngokuthe ngqo kwisakhiwo esinesakhiwo esinemilinganiselo emithathu, kwaye imilo iyafana neyemveliso edityanisiweyo eyilwe yiyo. Ilaphu elineendlela ezintathu lisetyenziswa kwinkqubo ye-pultrusion ukoyisa i-interlaminar shear yeemveliso ze-pultrusion zefayibha yokuqinisa yendabuko. Ineengxaki zokuba namandla aphantsi okusika kunye nokulula ukuhlukanisa, kwaye ukusebenza kwayo phakathi kweeleya kugqibelele.

Qhagamshelana nathi:

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