防靜電塑料周轉(zhuǎn)筐是電子、電氣元器件和設(shè)備的生產(chǎn)廠家用于生產(chǎn)、周轉(zhuǎn)、貯存、包裝所必備的,是有效地保護(hù)靜電敏感免受靜電損傷的必不可少的器具。防靜電周轉(zhuǎn)筐隨著靜電敏感器件的廣泛應(yīng)用,它的質(zhì)量和防靜電性能受到用戶的極大關(guān)注。 同一個(gè)容器材料電阻的均勻性是參照GJB/105-98電荷泄放的要求而提出的,導(dǎo)電性是ESD防護(hù)材料重要性能,能讓電荷泄放到地,在同一個(gè)容器上電阻率的均勻性能讓電荷均勻地分布在整個(gè)材料上。靜電全衰期的時(shí)間測(cè)量是參照GJB/Z 105-98 H3.2.4執(zhí)行。 靜電衰減性能測(cè)試對(duì)于均勻材料(體積表面導(dǎo)電性的范圍之內(nèi)時(shí))都呈現(xiàn)出復(fù)雜的測(cè)量問(wèn)題;非均勻的體積、表面兩種導(dǎo)電材料系統(tǒng)呈現(xiàn)極端復(fù)雜的測(cè)量問(wèn)題。對(duì)于復(fù)合結(jié)構(gòu)的材料而言,材料的電阻率(體積電阻率或表面電阻率)對(duì)靜電衰減時(shí)間的相關(guān)性可能是前后矛盾,為了使靜電分別規(guī)定為小于10秒和2秒。 規(guī)定對(duì)耐熱性能試驗(yàn)溫度為80℃,比國(guó)標(biāo)規(guī)定的60℃有所提高。物理機(jī)械性能抗沖擊強(qiáng)度,由于電子行業(yè)的周轉(zhuǎn)筐結(jié)構(gòu)形式多樣性,對(duì)于一次性注塑成型周轉(zhuǎn)筐和元件盒可以采用跌落試驗(yàn),但是對(duì)于組裝成型的周轉(zhuǎn)架和車(chē)難以實(shí)行整體跌落試驗(yàn),為此暫定為對(duì)塑件做缺口沖擊試驗(yàn),保證周轉(zhuǎn)筐的可靠性。
中譯英: Anti static plastic basket turnover is electronic, electrical components and equipment manufacturers for the production, storage, packaging, turnover is necessary, effective protection of electrostatic sensitive from electrostatic damage essential apparatus. Anti-static turnover basket with electrostatic sensitive devices are widely used, its quality and antistatic performance by the user's attention. The same container material resistance uniformity is the reference GJB/105-98 charge discharge requirement, conductivity is ESD protective material performance, can make the charge discharge to the earth, in the same container homogeneous resistivity properties allow charges to be uniformly distributed throughout the material. Static full decay time measurements are made with reference to GJB/Z 105-98 H3.2.4 implementation. Electrostatic charge decay test for homogeneous material(volume surface conductivity range)presents a complex measurement; non uniform volume, the surface of two kinds of conductive material system presents complicated measurement. For composite structure of material, the material resistivity(volume resistivity or surface resistivity)of electrostatic charge decay time correlations may be contradictory, in order to make electrostatic separate provisions are made for less than 10 seconds and 2 seconds. The provisions of the thermal performance test temperature is 80 ℃, 60℃than standard improvement. Physical and mechanical properties of impact strength, due to the electronic industry turnover basket structure diversity, for a one-time injection molding turnover basket and the component box can adopt the drop test, but for assembling turnover frame and the vehicle to execute overall drop test, this is tentatively scheduled for the plastic parts do notch impact test, ensure the reliability of turnover basket. (圖/文http://m.hsalfa.com/) |