Chombo cha pulasitiki pendulum impact tester ndi chida choyesera kukana kwa zinthu zomwe zili pansi pa katundu wamphamvu. Ndi chida chofunikira choyesera kwa opanga zinthu ndi madipatimenti owunikira zabwino, komanso ndi chida chofunikira kwambiri choyesera chamagulu ofufuza asayansi kuti apange kafukufuku watsopano.
Ubwino wazinthu:
Maonekedwe a zida (modekha, digito) makina oyesera a pendulum abweretsa kusintha kwakukulu pakuyesa kwamphamvu m'mbali ziwiri.
Chimodzi ndicho kusiyana kwakukulu pakati pa makina oyesera a pendulum ndi makina oyesera omwe amagwiritsidwa ntchito ndi zida (digitization): ndiko kuti, kulamulira, kuwonetsera mphamvu, ndi kusonkhanitsa ndi kukonza makina opangira mphamvu zonse zimasungidwa pakompyuta. Zotsatira zoyeserera zimawonedwa ndi mawonedwe azithunzi, ndipo ma curve a mphamvu yanthawi yayitali, kusokoneza mphamvu ndi zina.
Chachiwiri ndi "standarded of instrumented impact test ways", zomwe zapangitsa kusintha kwabwino pakuyesa zotsatira. Kusintha uku kukuwonekera m'mbali zotsatirazi:
1. Tanthauzo la mphamvu zowonongeka limachokera ku tanthawuzo la ntchito yakuthupi: ntchito = mphamvu × kusamuka, ndiko kuti, malo omwe ali pansi pa mphamvu yowonongeka kwa mphamvu amagwiritsidwa ntchito poyesa;
2. Magawo a 13 omwe amawonetsa momwe zinthu zimakhudzira zomwe zimatanthauzidwa ndi curve yamphamvu ndi 13: 1 poyerekeza ndi gawo limodzi lokha lamphamvu lamphamvu lomwe limaperekedwa ndi njira wamba yoyeserera, zomwe sitinganene kuti ndikusintha kwabwino;
3. Pakati pa magawo 13 ogwira ntchito, pali 4 mphamvu, 5 kupotoza, ndi 4 magawo a mphamvu. Iwo motsatana amasonyeza ntchito indexes wa zinthu elasticity, pulasitiki ndi fracture ndondomeko pambuyo anakhudzidwa, chimene ndi chizindikiro cha khalidwe kusintha mayeso zotsatira;
4. Onani m'maganizo momwe mungayesere. Ithanso kupeza mphamvu yokhotakhota yokhotakhota ngati kuyesa kwamphamvu. Pamapindikira, titha kuwona kusinthika ndi kusweka kwachitsanzo cha zotsatira;
Mawonekedwe:
1. Ikhoza kuwonetsa mwachindunji mzere wapachiyambi, nthawi ya mphamvu, kusokoneza mphamvu, nthawi ya mphamvu, kusokoneza mphamvu, kusanthula ndi zina.
2. Mphamvu yamphamvu imangowerengedwa molingana ndi ngodya yokweza pendulum. 3. Kuwerengera mphamvu zinayi za mphamvu ya inertia, mphamvu yaikulu, mphamvu yoyamba ya kukula kosakhazikika kwa mng'alu, ndi kusweka mphamvu kutengera miyeso ya mphamvu ya mphamvu; nsonga ya inertia, kupatuka pa mphamvu yayikulu, kupotoza koyambirira kwa kukula kosakhazikika kwa ming'alu, kupatuka kwa fracture, kusuntha Asanu kwathunthu; Zotsatira za 14 kuphatikiza mphamvu zochulukirapo, mphamvu zoyambira zakukula kosakhazikika kwa mng'alu, mphamvu ya fracture, mphamvu zisanu zamphamvu zonse, ndi mphamvu yamphamvu. 4. Zosonkhanitsira m'makona zimatengera encoder yolondola kwambiri yazithunzi, ndipo mawonekedwe ake amafika pa 0.045 °. Onetsetsani kulondola kwa zida zimakhudza mphamvu. 5. Chipangizo chowonetsera mphamvu chili ndi njira ziwiri zowonetsera mphamvu, imodzi ndi mawonedwe a encoder, ndipo yachiwiri ndi kuyeza kwa mphamvu ndi sensa, ndipo mapulogalamu apakompyuta amawerengera ndikuwonetsa. Mitundu iwiri ya makinawa ikuwonetsedwa palimodzi, ndipo zotsatira zake zikhoza kufananizidwa ndi wina ndi mzake, zomwe zingathe kuthetsa mavuto omwe angakhalepo. 6. Makasitomala amatha kukonza masensa osiyanasiyana amphamvu kuti akhudze tsambalo malinga ndi zofunikira za mayeso. Mwachitsanzo, tsamba la R2 limakumana ndi miyezo ya ISO ndi GB, ndipo tsamba la R8 limakwaniritsa miyezo ya ASTM.
Technical Parameters
Specification Model | ||
Mphamvu yamphamvu | 0.5, 1.0, 2.0, 4.0, 5.0J | 7.5, 15, 25, 50J |
Kuthamanga kwakukulu | 2.9m/s | 3.8m/s |
Utali wa arc kumapeto kwa chithandizo cha chitsanzo | 2 ± 0.5mm | |
Arc radius of impact blade | 2 ± 0.5mm | |
Impact blade angle | 30°±1 | |
Kwezani kulondola kwa cell | ≤±1%FS | |
Angular displacement sensor resolution | 0.045 ° | |
Zitsanzo pafupipafupi | 1MHz |
Kukwaniritsa muyezo:
GB/T 21189-2007 "Kuyendera Makina Oyesera a Pendulum Impact for Plastic Simply Support Beams, Cantilever Beams and Tensile Impact Testing Machines"
GB/T 1043.2-2018 "Kudziwitsa zamphamvu za pulasitiki zongothandizidwa ndi matabwa-Gawo 2: Kuyesa kwamphamvu kwa zida"
GB/T 1043.1-2008 "Kudziwitsa za momwe pulasitiki imagwirira ntchito - Gawo 1: Mayeso osagwiritsa ntchito zida"
TS EN ISO 179.2 Plastics-Kudziwitsa za Charpy impact - Gawo 2: Kuyesa kwa zida