inethi lokudoba,inetha lokudoba.Ukudoba impahla ekhethekile yokwakha ithuluzi.Ngaphezu kwama-99% acutshungulwa emicu yokwenziwa.Kukhona ikakhulukazi inayiloni 6 noma inayiloni eguquliwe enayiloni, i-multifilament noma i-multi monofilament, futhi imicu efana ne-polyethylene, i-polyester, ne-polyvinylidene chloride nayo ingasetshenziswa.Amanethi asetshenziswa ekukhiqizeni ukudoba ahlanganisa amanetha okudoba, amanetha e-purse seine, amanetha aphonsiwe, amanetha angashintshi kanye namakheji.Amanethi ama-trawl kanye ne-purse seines angamanethi anzima asetshenziswa ezindaweni zokudoba zasolwandle.Ubukhulu be-mesh buyi-2.5 kuya ku-5 cm, ububanzi bentambo yenetha bungaba ngu-2 mm, kanti isisindo senetha singamathani amaningana noma amathani amaningi.Ngokuvamile, izikebhe ezimbili ezidonsayo zisetshenziselwa ukudonsa nokujaha iqembu labadobi ngokwehlukana, noma isikebhe esilula sisetshenziselwa ukuyengela izinhlanzi eqenjini futhi lisizungeze.Amanethi aphonsa amanethi angasebenza kalula okudoba emifuleni nasemachibini.Ubukhulu be-mesh bungu-1 kuya ku-3 cm, ububanzi bentambo yenetha bungaba ngu-0.8 mm, kanti isisindo senetha singamakhilogremu amaningana.Amanethi angaguquki kanye namakheji angamanethi angashintshiwe esiko lokwenziwa emachibini, kumachibi noma kumatheku.Ubukhulu kanye nezincazelo ziyahlukahluka kuye ngezinhlanzi ezikhuliswayo, futhi izinhlanzi zigcinwa endaweni ethile yamanzi ukuze zingaphunyuki.amanetha okudoba afeza izinjongo eziningi.
Ngokuthuthukiswa kokudoba, izinto zokudoba nokuzingela akuzona izinhlanzi kuphela, kodwa amathuluzi okudoba nawo ahamba phambili nezikhathi.Amanethi okudoba ahlukene ngokusebenza amanethi egill, amanetha okudonsa (amanetha okudoba), amanetha e-purse seine, ukwakhiwa kwenetha kanye nokwendlalwa kwenetha.
Amanethi okudoba asetshenziswa kakhulu ahlukaniswa ngokuthi:donsa amanetha, amanetha akhukhulekayo,namathela amanetha.Kudingeka ukuthi kube nokukhanyela okuphezulu (ingxenye yenayiloni enenetha) namandla, ukumelana nomthelela omuhle, ukumelana nemihuzuko, ukusimama kwe-mesh dimensional nokuthambile, nobude obufanele ngesikhathi sekhefu (22% ukuya ku-25%).Icutshungulwa nge-monofilament, intambo esontekile ye-multifilament (enenetha elihlanganisiwe) noma i-monofilament warp weaving (i-raschel, okungeyenetha elinganamafindo), ukwelashwa okukodwa kokushisa (i-nodule ehleliwe), ukudaya kanye nokwelashwa kokushisa kwesibili (usayizi we-mesh engashintshi).Izinto zokusetshenziswa zokweluka amanetha okudoba ikakhulukazi ziyimicu engu-15-36 yenayiloni engu-210-denier, i-polyester multifilament kanye ne-ethylene monofilament enobubanzi obungu-0.8-1.2 mm.Izindlela zokuluka zihlanganisa ukuluka, ukusonta nokuluka i-warp.
Yiziphi izinto ezisetshenziswa kakhulu amanetha okudoba?
1. Amanethi okudoba angamathuluzi okukhiqiza abadobi, angasetshenziswa ukubamba izinhlanzi, izimfanzi nezinkalankala ngaphansi kwamanzi.
2. Amanetha okudoba angasetshenziswa futhi njengethuluzi lokuvikela, njengamanetha okuvimbela oshaka, angasetshenziswa ukuvikela izinhlanzi ezinkulu eziyingozi njengoshaka.
3. Amanethi okudoba angakha umphumela wobuciko obubonakalayo.
Isikhathi sokuthumela: Sep-05-2022