真密度/絕對(duì)密度是固體材料特別是粉體顆粒的一項(xiàng)重要物理性能指標(biāo)，其數(shù)值大小決定于材料化學(xué)組成純度及固態(tài)致密性，其值直接影響材料質(zhì)量、性能及用途。傳統(tǒng)的測(cè)定材料真密度的方法是基于阿基米德原理的比重瓶法，因手動(dòng)操作及液體排除的不精確性帶來(lái)的系統(tǒng)誤差及測(cè)試誤差較大，ISO標(biāo)準(zhǔn)組織于2014年正式推行氣體體積置換法標(biāo)準(zhǔn)ISO 12154用于測(cè)試真密度。精微高博公司JW-M100真密度測(cè)定儀，能快速、高精度測(cè)量各種粉體、塊體等固體材料的真體積及真密度，樣品室體積范圍1cm3-100cm3，平均完成一次分析約需3min，測(cè)試效率高，非常適合質(zhì)檢的快速分析。
儀器參數(shù)
真密度測(cè)試范圍：0.0001g/mL 至 無(wú)限大；
測(cè)試分辨率：0.0001g/mL；
測(cè)試效率：每次測(cè)試僅需3min；
吸附質(zhì)氣體為N2,或He；
樣品腔有兩種：10mL和100mL，
樣品杯有兩種：10mL和100mL，
轉(zhuǎn)換倉(cāng)有10mL；
整機(jī)質(zhì)量為10kg；
分析模塊尺寸及主機(jī)尺寸均在下表中列出；
儀器的工作溫度為20 - 28℃；
應(yīng)用域：
陶粒、壓裂支撐劑、金屬粉、石墨負(fù)材料、碳素材料、陶瓷、氧化鋁、催化劑、濾材、核燃料、石油化工、土壤、肥料、炭黑、焦炭、纖維、礦物、制藥、化妝品、水泥、粉末食品、干燥劑、粉末金屬、離子交換樹(shù)酯、硅膠、二氧化鈦、固體泡沫等。
JWGB Sci.&Tech. Ltd. (JWGB) founded in 2004, is a first-class powder characterization solution ａnd service supplier worldwide. We focus on the test of powder’s surface area, pore size ａnd distribution; meanwhile, we offer a broad range of physisorption analyzers ａnd density measurements.
Decade years, relying on a multi - interdisciplinary professional team, JWGB designs ａnd invented the corresponding surface test instruments, makes the test of powder ａnd porous materials more accurate, precise, ａnd reliable. Covering electric materials, catalysts, REEs, ａnd ceramics, JWGB helps customer in physical property characterization, which earns us favorable comment.
2004, JWGB was founded. The birth of the first generation of dynamic surface area analyzer.
2005, Second Generation dynamic surface area analyzer launch
2006, Dynamic pore size analyzer is favored by customers in the market
2007, The first volumetric surface area analyzer debuted in the domestic market
2008, Chairman Zhong Jiaxiang on the cover of "China Powder Industry"
2009, JWGB Wins Outstanding New Product for Scientific Instruments
2010, JW series products passed scientific & technical appraisement.
2011, Chairman zhong Jiaxiang launched JWGB＇s self-developed DFT analysis software at the annual meeting of powder industry
2012. JWGB Wins Innovation Award.
2013, JW-BK132F surface area ａnd pore size analyzer won the title of "good domestic instrument".
2014. The 10th Anniversary of the Establishment of JWGB.
2015, Launch of a new generation of dynamic surface area analyzer
2016, Won the prize of the Ministry of Science ａnd Technology of PRC.
2017, JWGB Financing Restructuring. Start ingesting a new journey in the year of entrepreneurship.
2018. Relocation to a new location.
2018, vapor sorption instrument on the market.
2019, win-win cooperation. Exclusive agent 3P INSTRUMENTS＇ mixSorb series analyzers, ａnd promote sales ａnd service in China.
Future, continuous innovation.
第6年
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