Pehea e hana ai i ka nui kani ultrasonic horn–II

Ma ka nūhou hope loa, ua noi ʻia a hōʻoia ʻia e nā hoʻokolohua ke ʻano hana hoʻolālā o ka nui-nui ultrasonic plastic welding slotted joint.ʻO ka mea mua, ua hoʻokaʻawale maikaʻi ʻia ka pū kani welding i loko o nā ʻāpana he nui i mea e hoʻololi ʻia ai ka hoʻolālā ʻana o ka puʻupuʻu puʻupuʻu slotted me ke ʻano paʻakikī i ka hoʻolālā ʻana o ka pūhui puʻupuʻu maʻalahi.A laila hoʻohālikelike ʻia ka mea hui me ka hapalua hawewe oscillator me ka ʻāpana like e noʻonoʻo ana i ka haʻalulu hoʻohui.Loaʻa ka hoʻohālikelike pinepine o ka hui ma ka hoʻohana ʻana i ka manaʻo o ka impedance mechanical like.

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ʻO ka mea hope loa, ua aʻo ʻia ka mana o ka helu slot, ka laulā slot a me ka lōʻihi o ka puʻu i nā hiʻohiʻona vibration o nā hui kuʻihao ma ka hoʻohana ʻana i ka hoohalike.E like me kēia ʻano, ua hoʻolālā ʻia a hana ʻia kekahi mau pūʻulu o nā ʻāpana nui nui.Hōʻike nā hopena hoʻokolohua i ka ʻae maikaʻi ʻana o nā waiwai i ana a me ka theoretical o ke alapine resonance o nā hui welded.

E like me ka mea i hōʻike ʻia ma ke kiʻi ma lalo nei.ʻO ka lōʻihi, ka laulā a me ka mānoanoa o ka puʻupuʻu welding he L, B a me T.E noʻonoʻo i ke koʻi z ma ke ʻano he kuhikuhi hoʻāla o ka transducer.Ma ke alapine hana, e hana ka hui kuʻihao rectangular i ka vibration longitudinal kauoha mua ma ke kuhikuhi Z.No nā hui kuʻi wili, hiki ke hoʻohālikelike ʻia L≥2T, B a me L, no laila hiki ke nānā ʻole ʻia ka haʻalulu transverse o nā hui kuʻi ma ka ʻaoʻao X.

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No ka mea, nui ka mana o ka ha'alulu ma ka 'ao'ao y i ka ha'alulu longitudinal, ua ho'ohālikelike 'ia e ka slotting.Hoʻokaʻawale ʻia ka pū kani i (n+1) ma ka wehe like ʻana i nā puka n ma ka ʻaoʻao Y.ʻO ka laulā a me ka lōʻihi o kēlā me kēia slot ʻo W a me L2 paʻa, a ua hoʻokaʻawale ʻia nā pahu mai ka hoʻokomo a me nā hopena hoʻopuka o ka pū kani l1 a me L3.No ka hōʻoia ʻana i ka like ʻole o kēlā me kēia ʻāpana, pono e wehe ʻia nā ʻāpana o ka laulā W /2 ma nā ʻaoʻao ʻelua o ka pu hoʻoheheʻe transverse.No laila, ʻo kēlā me kēia hui kuʻi ʻana he pūhui trapezoidal pū me ka ʻāpana rectangular.Ke manaʻo nei ʻo D1 a me D2 ka laulā ma nā ʻaoʻao ʻelua a ma waena o kēlā me kēia, hiki ke ʻike ʻia ma luna: L= L1 + L2 +L3

Ma muli o ke ʻano like ma waena o nā mea, e hoʻoliʻiliʻi ka amplitude o ka weld i ke kumu, a i ka hui ʻana, e loaʻa pū i ka pū kani ultrasonic kēia ʻano, no laila e hoʻomaʻamaʻa ʻia ka hoʻolālā o ka mold ultrasonic i ka hoʻolālā ʻana o kekahi. ʻeleʻele.Eia kekahi, he mea like ia.I mea e hoʻopaʻa pono ai i ka vibration transverse a hōʻoia i ka paʻa ʻana o ka puʻupuʻu welding, ʻo ka laulā o ka puʻupuʻu welding puʻupuʻu i puʻunaue ʻia e ka groove i loko!/ 8 ~!/ 4 (! ʻO ia ka lōʻihi o ka nalu o ke ʻano haʻalulu longitudinal mua o ka pū kani), a ʻo ka laulā kūpono o ka slot e pili ana!/ 25 ~!/20[7], hiki ke hoʻoholo ʻia ka helu grooving o nā hui kuʻiʻo e like me nā pae hoʻohālike i luna.No ka mea, ʻaʻole i ʻoi aku ka laulā o ka pūhui welding horn!PI /4, no laila hiki ke nānā ʻia e ka manaʻo hoʻokahi-dimensional.Hiki ke no'ono'o 'ia kekahi hui ku'ihao ma ka 'āpana 1 e like me 'ekolu mau pahu equisectional rectangular.

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Aluminum alloy 7075 (Young's modulus E=7.17*1010N/M2 density ρ=2820kg/m3, Poisson's ratio V =0.34) i kohoia no ka welding horn.Ua hoʻohana ʻia nā hoʻohālikelike (1) ~ (3) a me (6) no ka helu ʻana i ka helu n, ka lōʻihi L2 a me ka laula W o nā pahu like ʻole.Ke hoʻololi ka lōʻihi L o ka pu hoʻoheheʻe kaula me ka laula B, hoʻololi ka lōʻihi L o ka pū wili kaula me ka laulā B. ʻO ke alapine resonant i helu ʻia f=20kHz, L1=L3 no ka maʻalahi.Ke hoʻomau ka lōʻihi a me ka laula o ka slot, hoʻololi ka lōʻihi resonant me ka laula o ka pū weld ke ʻokoʻa ka helu slot.L2 =60mm, W =10mm.E like me ka mea i ʻike ʻia mai ka FIG.2, no ka pu kiwi wiliwili i hoikeia ma FIG.1, ʻoi aku ka liʻiliʻi o ka lōʻihi o ka resonance mua ma mua o ka puʻupuʻu unslotted welding horn i helu ʻia e like me ka manaʻo hoʻokahi-dimensional (126mm), a piʻi ka lōʻihi resonant o ka puʻupuʻu welding me ka piʻi ʻana o ka laulā o ka puʻupuʻu welding, akā ʻo ka emi malie ka hoonui.Eia kekahi, i ka wā e mau ai ka resonant frequency a me ka laulā weld, e emi ana ka lōʻihi o ka weld me ka hoʻonui ʻana i ka helu slot.

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Eia kekahi, ʻekolu mau hui welded o ka mānoanoa like ʻole i mīkini ʻia me ka alumini alumini 7075 (mea like me luna).Hāʻawi ʻia ka mānoanoa T o kēia mau hui welded ʻekolu a me ke alapine vibration harmonic FM.Ke emi iho ka mānoanoa o ka pepeiaohao welding ma mua o ka hapaha o ka nalu (eia ka 63mm), ʻoi aku ka liʻiliʻi ma waena o ke alapine i ana ʻia a me ke alapine hoʻolālā ma lalo o 2%, hiki ke hoʻokō i nā koi o nā noi ʻenehana.

Ua hoʻokaʻawale maikaʻi ʻia ka hui kuʻihao ultrasonic plastic lōʻihi i kekahi mau mea like a ua unuhi ʻia ka hoʻohālikelike alapine o ka mea hui ma ke ʻano transfer matrix.Inā ʻike ʻia ka laula a me ka nui a me ka nui o ka slot, hiki ke hoʻohana ʻia ka hoohalike no ka hoʻolālā ʻana i ka hui ʻāpiʻi me ka maʻalahi, no laila e hāʻawi i kahi kumu kumu no ka hoʻolālā ʻana o ka ʻāʻī.Hoʻopili pū kēia pepa i ka mana o ka helu slot, ka laulā slot a me ka lōʻihi o ka slot ma ka nui o ka hui wili ma o nā laʻana.Hiki ke ʻike ʻia he mana kekahi o kēia ʻano i ka hoʻolālā optimization o ka hui kuʻi

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Hoʻokaʻawale ʻia ma hope o ka hoʻopaʻa ʻana i ka vibration horn welding, hiki ke hoʻokaʻawale ʻia ka pu kuʻi ʻana i ke kino hope a me ke kikowaena waena waena, me ka hoʻohana ʻana i ke ʻano o ke ʻano elasticity a me ka hopena o ka laina hoʻouna, hāʻawi ʻia ka lōʻihi o nā ʻāpana ʻehā i kēlā me kēia. ʻO ke kuhikuhi o ke kiʻekiʻe kiʻekiʻe o ka hoʻohālikelike alapine, hiki ke hoʻohana ʻia ka hoʻohālikelike alapine e hoʻolālā i kahi puʻupuʻu kuʻihao lōʻihi, akā paʻakikī ke kaʻina hana hoʻolālā, ʻO ke koho ʻana o kekahi mau palena e pili ana i ka ʻike a ʻaʻole kūpono no ka noi ʻenehana.Ma kēia pepa, ua māhele ʻia ka hui kuʻi ʻana i kekahi mau mea like e ka slotting kūpono, a loaʻa ka hoʻohālikelike pinepine o ka hui kuʻi ʻana ma ke ʻano transfer matrix, e hāʻawi ana i ke kumu kumu no ka hoʻolālā ʻana o ka hui kuʻi.ʻO ka hoʻolālā he helu theoretical maʻalahi a me ka manaʻo kino maoli, e hāʻawi i kahi ala maʻalahi a maʻalahi no ka hoʻolālā ʻenekinia o ka strip.

hui wiliwili.

kani ultrasonic horn, ultrasonic mold.mea hoʻolako pū kani ultrasonic


Ka manawa hoʻouna: Mar-17-2022