HDPE chubu: makhalidwe ndi ntchito

Chalk pulasitiki kuikira anaonekera mu dziko lathu za pakati pa 90s Mu zaka zapitazo, kenako pasanapite nthawi m'malo mwa chitsulo ndi zitsulo Anzawo. Zimenezi ndi zoona makamaka a mipope madzi. Zingatanthauze kuti mu nthawi iyi ya HDPE chitoliro (makhalidwe amene ife kufotokoza m'munsimu), anali asonyeza kukhala wamkulu, koma ena a ife akadali pulasitiki ndi kukayikira ena. Tiyeni tikambirane zambiri za mankhwala.

Kuchokera pa zimene machubu izi amapangidwa?

Kagwiridwe kupanga amenewa kuti ethylene mamolekyulu crosslinking ndondomeko limapezeka pa mavuto 5 kg / masentimita ^2. Anapanga zinthu ndi osalimba a 0,941 g / cm, kukhala stiffness wabwino. Chifukwa dongosolo la galasi, ndi osiyana Kuwonekera. Popeza kuti ethylene chikugwirizana mu molekyulu yaying'ono ndi nthambi zazing'ono, mphamvu ya chuma chifukwa zedi mkulu. HDPE chimasungunula pa kutentha pafupifupi 130 madigiri, kotero kuti ntchito muyezo wa mankhwala kumasula poopa kulephera chifukwa cha chinthu kutentha suyenera. Choncho, HDPE chitoliro, makhalidwe a amene ali wabwino, wangwiro m'nyumba machitidwe madzi.

Komanso, ali kukana kwambiri ku zidulo ndi mafuta, zomwe zimachititsa mipope ngati phungu mulingo woyenera ogwiritsa machitidwe kuikira osati kokha, komanso zimbudzi. Tikumbukenso kuti akhoza losweka, koma pogwiritsa ntchito zizindikiro mkulu-maselo kuti sizichitika akamaziwononga. Mfundo HDPE chitoliro, makhalidwe amene ali ndithu mkulu, umagwiritsidwa ntchito pa kutentha kwa madigiri -50 Celsius.

Komanso, HDPE amapangidwa ma CD film, mapaipi ndi kutchinjiriza kwa zingwe mkulu-voteji, maukonde kwa mipanda, mipando ndi mipando wokha, komanso mndandanda yaikulu mankhwala ena.

Makhalidwe waukulu wa mankhwala

Komabe, ndife sanaganizire kwambiri zimatha luso maukonde ndi Chalk, monga mwachindunji ndi mapaipi okha. Tiyeni tione iwo mwatsatanetsatane.

Choyamba, moyo wawo utumiki - osachepera theka atumwi. Akatswiri mu 50 a m'nthawi yomaliza anaika bata choterechi zinalengedwera. Monga tanena kale, iwo poyera kuti mapangidwe aukali mankhwala. Komanso, mapaipi zopangidwa polyethylene sali m'gulu mafunde, pamene mipope zitsulo kungawonongedwe mwa iwo nyengo angapo okha. Ngakhale mtengo wa atagona awo pansipa pafupi ndi dongosolo la udzakwaniritsidwa: pamapeto, ngati n'koyenera, kupirira ntchito imeneyi, ngakhale munthu mmodzi. Ndipo zonse izi - HDPE chitoliro. Luso mchitidwe ntchito zawo waonetsa kuti ngakhale mukhale chopondapo iwo anapanga, kotero kuti kufunika nkhonya ndiponso kuwonongeka kwa zipangizo akhoza bwinobwino kuiwala.

Dziwani kuti ngakhale pa otsika kutentha kwambiri yozungulira, zimene zimachititsa kuti chotupa cha mankhwala muyezo zitsulo, polyethylene amakhalabe kwathunthu sanamuvulaze. Ichi ndi chifukwa chakuti madutsidwe matenthedwe wa nkhaniyi ndi otsika kwambiri. Ndicho chifukwa HDPE chitoliro (makhalidwe amene takambirana) akhoza mofanana bwino ntchito osati kuzizira, komanso Far North. Mwa njira, ngakhale pa otsika kutentha kwambiri, pamene madzi ukadali atapanga mkati mankhwala, palibe choopsa chidzachitika: a polyethylene kuwonjezeka ndi 5-7%, kotero kuti ayezi sadzatha aling'ambe ilo.

katundu izi kupereka kukana kwambiri kuti waterhammer, moti ngakhale antics wa mtchalitchi si kukuopsani. Ngati chinachake chimachitika, yokonza sadzatenga nthawi yambiri. Komanso, HDPE chitoliro, makhalidwe amene kulola kuwotcherera ake, ndi nthawi sasiya mphamvu ngakhale welds.