Isigcina-ntloko sesithuthuthu Ibhalansi phakathi kokuqina kunye nokuthuthuzela

Izinto eziphathekayo ze-helmet zichaphazela ngokuthe ngqo ukusebenza kwayo kokukhusela kunye nokugqoka induduzo. Xa ukhetha, kufuneka kufunyanwe ukulingana phakathi kokuqina kunye nokuthuthuzela. ​
Izinto eziqhelekileyo ze-helmet iqokobhe zibandakanya iplastiki ye-ABS, i-alloy ye-PC, i-carbon fiber, njl. Kodwa ukungonakali kwayo kukuba inzima kakhulu, kwaye ukuyinxiba ixesha elide kunokuzisa umthwalo othile entanyeni. Ukusebenza kwezinto ze-alloy ze-PC kungcono kunokweplastiki ye-ABS. Inamandla aphezulu kunye nokuqina, ukusebenza okungcono kokuchasana nokuguga, kunye nenkangeleko esulungekileyo. Ubume bulungile xa uchukumisa, kwaye iglosi yeglosi iphantsi kokukhanya okuqinileyo. I-Carbon fiber yinto emele i-helmets ephezulu, inamandla amakhulu kunye nobunzima obulula, inika ukhuseleko oluhle kakhulu kubagibeli ngelixa inciphisa umthwalo wentloko. Kodwa ixabiso layo eliphezulu lithintele abathengi abaninzi abanohlahlo lwabiwo-mali olulinganiselwe. Umzekelo, isigcina-ntloko esiqhelekileyo seplastiki ye-ABS sinokuxabisa amashumi ukuya kumakhulu eeyuan, ngoxa isigcina-ntloko secarbon fiber esikumgangatho ofanayo sinokuxabisa amawaka eeyuan. ​
I-buffer layer, njengenxalenye ephambili yesigcina-ntloko sokufunxa amandla empembelelo, iqhele ukwenziwa ngezinto ezifana ne-EPS (ipolystyrene eyandisiweyo) kunye ne-EPP (ipolypropylene eyandisiweyo). I-EPS inoluhlu olubanzi lwezicelo, ifunxa ngokufanelekileyo kwaye isasaze amandla empembelelo ngexesha lokungqubana, kunye nokuthungwa okufanayo kunye nokunwebeka xa ucinezelekile. Nangona kunjalo, ukuxhathisa kwayo kwiimpembelelo ezininzi kuphakathi. I-EPP inokusebenza okungcono, ukomelela okungcono kunye nokuqina kune-EPS, kwaye ihambelana nokusingqongileyo kwaye ayinayo ityhefu. Ukucofa umaleko we-buffer we-EPP kunokuva ngokucacileyo ukunwebeka kunye nokubuyela kwakhona ngokukhawuleza, kunye nokuziva okuqinileyo kunye nokuqina. Kodwa ixabiso layo eliphezulu likhokelela kwixabiso eliphezulu jikelele leehelmethi zisebenzisa i-EPP buffer layer