Koj puas paub? Clamshell ntim tau qhia nyob rau hauv xyoo 1980ua kom cov khoom pom rau cov neeg siv khoom thaum tiv thaiv tub sab. Teb Chaws Asmeskas inventor Thomas Jake Lunsford patented clamshell xyoo 1978.
Vim li cas clamshells tsis rov ua dua?
Lawv ua cov khoom zoo dua thaum ua tiav thiab muaj qhov sib txawv ntawm qhov sib txawv dua li PET lub raj mis, uas ua rau kev ua cov clamshells thiab fwj ua ke nyuaj.
Cimshell ua li cas?
Clamshells yog ib hom ntawv ntim khoom. Lawv feem ntau yog ua los ntawm yasTab sis, lawv tuaj yeem ua los ntawm styrofoam, ntawv ntawv, duab los qhia, thiab ntawv siv dua tshiab. Lawv yog tsim los ntawm ob "zoo tib yam" plhaub."Lub plhaub yog txuas rau ntawm ib sab thiab muaj tab ntawm sab nraud.
Vim li cas lub ntim clamshell muaj nyob?
Nrog rau kev ruaj ntseg clamshell yas ntim, koj cov khoom yog tiv thaiv los ntawm kev cia tsis zoo thiab tuav tsis raug thaum thauj. Clamshell yas ntim khoom ruaj ntseg kaw koj cov khoom los ntawm cov pa paug, tiv thaiv nws txoj kev nyab xeeb thiab tshiab.
Clamshells yas yog dab tsi?
Clamshell ntim tuaj yeem ua los ntawm ntau yam yas xws li polystyrene, polyester, PVC, ntawv ua npuas ncauj, thiab lwm yam. Cov khoom tuaj yeem ua los ntawm thermoforming lossis tuaj yeem txhaj molded rau hauv cov duab uas xav tau.