纤维板发明专利

正申请号:201210214956.2发明名称:一种中密度纤维板真空机械铺装机的纤维进料输送装置公开号:CN102862210A申请人:上海人造板机器厂有限公司摘要:本发明公开的一种中密度纤维板真空机械铺装机的纤维进料输送装置。包括底架和安装在底架上的料仓,以及安装在料仓上的进料装置和料仓内的料耙机     

中密度纤维板铺装真空风机的改造

通过对中密度纤维板真空铺装所需风压及风量分析,找出风机参数选择存在"误区",对风机进行改造,达到提高产品质量,降低电能消耗,降低生产成本的目的。     

刨花板工艺技术与其进步——铺装成型

介绍了机械铺装机和气流铺装机的发展历程,阐述了选择机械铺装与气流铺装的影响因素,分析了长片刨花芯层铺装技术的适应性,从理论和实践上探讨了铺装机的调整与控制。     

施工沥青砼桥面铺装技术的探讨

针对施工沥青桥面铺装技术的探讨,分析了桥梁沥青砼桥面铺装技术的要求,桥面铺装沥青砼材料的配置、桥面铺装沥青砼施工温度的控制、桥面铺装沥青砼施工时间的控制、桥面铺装沥青砼施工方法、桥面铺装沥青砼的碾压;探讨了沥青砼桥面铺装层常见病害的成因,铺装沥青砼桥面的荷载作用、铺装沥青砼桥面的结构体系、铺装沥青砼桥面的施工技术、铺装沥青砼桥面的现场环境铺装沥青砼桥面的运营管理。     

木竹电热复合地板自动铺装系统设计

针对木竹电热复合地板面材与面状导电发热单元—碳纤维导电纸人工铺装效率低、劳动强度大、人工成本高、铺装精度低等问题,设计了一种木竹电热复合地板自动铺装系统,导电带上料输送带采用步进气缸和超越离合器结构,成本低、控制效果好,简洁高效。本自动铺装系统将导电带的上料铺装和表层木皮的铺装均置于基材输送带两侧,实现一次定位完成导电带与表皮铺装工作,为木竹电热复合地板产业化提供重要的技术手段。     

中密度纤维板真空机械铺装机的开发与改进浅析(续)

3真空箱真空箱提供负压吸力,将纤维吸附在网带上,并使纤维间含有较小的气隙。真空箱(见图8)位于成型箱网带下部,根据铺装工艺需要设置2￣4只,互相平行排列。成型箱物料入口处设有可调摆动板,用于控制吸入物料的入料角度,优化铺装板坯料料层形状。调节杆真空度调节门真空接口Li图8真空箱外形示意真空箱内沿铺板宽度方向用多条格栅分成多个真空室,格栅内有可调风量板,通过调节风量板的角度控制宽度方向上各个真空室真空度大小,利于形成厚度均匀的物料层。网带上部箱体两侧壁光滑,以防产生静电和预防粘附纤维破坏板坯形态。3.1真空箱铺料分析…     

沥青砼桥面铺装病害成因探索

近年来桥面铺装早期破坏严重影响了交通通行的舒适性、安全性、给养护维修部门带来较大的治理维修难度,影响正常的交通运营畅通。为从根本上解决这一问题,应加快对桥面铺装的进一步研究,以明确桥面铺装层各结构层计算模型、力学特性及相关参数,为桥面铺装的设计提供指导,并在铺装施工中切实保证质量。沥青砼俗称沥青混凝土,经人工选配具有一定级配组成的矿料与一定比例的路用沥青材料,在严格控制条件下拌制而成的混合料,多用于路面和桥面的铺装。     

沥青混凝土桥面铺装防水技术

文章从沥青混凝土桥面铺装质量的主要影响因素入手进行分析,进而分别从不同层间接触状态、沥青铺装体系最不利荷载位置、沥青铺装层不同厚度的层间应力、行车超载等影响因素对桥面铺装层间应力特性进行分析与了解。对防水材料的实际运用效果进行了铺装实验,在这基础上总结出了桥面柔性防水层的施工工艺和质量检测验收方法。     

采用进口刨花板铺装网带与国产铺装网带的经济效益分析

采用进口刨花板铺装网带与国产铺装网带的经济效益分析海南省农垦三亚木材厂陈图瑛刨花板铺装时，要求拌胶刨花铺成的板坯很均匀，压出的刨花板厚度才能一致，因此刨花板的质量决定于铺装刨花板坯的质量，而铺装刨花板坯的质量，首先是取决于铺装网带的质量。质量好的铺装...     

浅议刨花板铺装板坯纵向密度精度控制

从原材料、制备工段、干燥工段、铺装工段等方面分析影响刨花铺装纵向密度精度的因素,并提出铺装纵向密度PID控制方案,从而提高铺装纵向密度控制精度。     

EcoPDB：高精度大肠杆菌蛋白质结构与对应基因序列数据集

高质量蛋白质结构及其对应基因序列数据是研究蛋白质折叠与蛋白质编码序列关系问题的基础.通过查询SWISS-PROT数据库中E.coli的蛋白质,得到不同数据库中的蛋白质结构与基因序列的交叉索引表,在此基础上,删除大量冗余及不可靠数据,最后得到一个高精度数据集EcoPDB.该数据集共有191个E.coli基因及其相应的精度好于2.5?的X射线衍射测定的PDB蛋白质结构数据,总残基数约5.5万.     

Extraction and fractionation of wheat flour proteins

With the aid of a 1.5% sodium dodecyl sulphate solution (SDS) the proteins of two Dutch wheat flours were separated into an SDS-soluble and an SDS-insoluble fraction. The SDS-soluble fraction was fractionated with the aid of ethanol precipitation and gel filtration chromatography into albumins, globulins, gliadins, glutenins II and III, and glutelins I, II, III and IV. The SDS-insoluble proteinaceous material was separated into glutenins I and glycoproteins. The protein fractions were identified with the aid of SDS-polyacrylamide gel electrophoresis and amino acid analysis. The glutenins I and II consist of A, B and C subunits. Their molecular weights ranged from about 600 000 to 10 million. The glutenins III consist only of B and C subunits and their molecular weights ranged from 300 000 to 600 000. A hypothesis explains how the glutenins III are the precursors for glutenins I and II and how they contribute to gluten's structure. The glutelins I consist of α β and γ subunits and their molecular weights ranged from about 600 000 to several millions. The glutelins II consist also of α β and γ subunits with a molecular weight of about 300 000 to 600 000, while the molecular weights of the glutelins III and IV ranged from 10 000 to 200 000. All glutelins are insoluble in 70 % aqueous ethanol and 5 M urea, but soluble in SDS and 0.1M NaOH. Only the glutelins III and IV are soluble in 0.1M HAc. The globulins consist of a heterogeneous fraction of components, their molecular weights arranged from 98 000 to 10 000. The gliadins form a heterogeneous but homologous group of polypeptides with an average molecular weight of 35 000. The albumins consist of components with molecular weights lower than 15 000.     

原始组织对T10A钢奥氏体晶粒长大的影响

对T10A钢试样在真空加热时奥氏体晶粒的长大现象进行动态观察 ,绘制晶粒长大动力学曲线 ,分析和讨论影响奥氏体晶粒长大的各种因素。试验结果表明 ,原始组织为片状珠光体或非平衡组织 (如下贝氏体或马氏体 )比粒状珠光体形成的奥氏体晶粒具有更强烈的长大趋势 ,前三者的急剧长大温度在 10 0 0℃左右 ,后者在 110 0℃左右     

Immunochemical examination of the surface physico-chemical properties of various dicotyledonous and monocotyledonous globulin seed storage proteins

Immunochemical analysis of the surface properties of seed globulins indicated that the 11S seed globulins of monocotyledonous and dicotyledonous plants possibly share some similarity in their primary structures, i.e. amino acid sequence on their surface topography as well in their structural conformation. Although homologies were found in all globulins, stronger antigenic responses were found to occur between the amaranth globulin antibody and the purified globulins from monocotyledonous than those originating from dicotyledonous seeds. Homologies in primary structure were found to occur almost exclusively in the ‘basic’ (20–27 000 Da) type subunit of the respective globulins. Data would imply that gene families encoding for these different proteins were derived from a common ancestral gene and must have been present before divergence of the angiosperms into dicotyledonous and monocotyledonous plants.     

豆腐蛋白体外消化物抑制胶束转运胆固醇作用分析

大豆蛋白肽具有显著的降血脂功效,但目前研究主要集中在小分子肽段,且对蛋白肽降血脂作用的分子机理探究较少。模拟豆腐蛋白的胃肠道消化,得到豆腐蛋白的体外消化物,按相对分子质量（MR）分为3 个级别：＞10 000、3 000～10 000和＜3 000,利用胆固醇胶束实验（采用两种实验基质及两种检测方法）检测其抑制膳食混合胶粒转运胆固醇的作用。结果表明,在分级的3 种豆腐消化物中,MR＞10 000具有最强的抑制膳食混合胶粒转运胆固醇作用,其胆固醇胶束吸收率为62.40%,小于阳性对照（Val-Ala-Trp-Met-Tyr,其胆固醇胶束吸收率为68.41%）,且MR＞10 000豆腐消化物的抑制胶束转运胆固醇作用随着样品质量浓度增大呈先增强后减弱的趋势。此外,胆固醇胶束实验中采用的两种“膳食混合胶粒”的转运效果及两种检测方法的结果均具有一致性,说明豆腐蛋白消化物具有影响膳食混合胶粒转运和胆固醇吸收的作用。     

Isolation of two γ-gliadins from cappelle-desprez

The strongest band in the electrophoretic pattern of Cappelle-Desprez gliadin owes its intensity to the coincidence of two proteins. These have been isolated and characterised. They have a fairly similar amino acid composition, typical of the gliadin class, and appear to be single polypeptide chains, free of SH groups and carbohydrate. Their molecular weights are 38 000 and 44 000. The higher mobility at pH 8.9 of the lighter molecule is attributed to its smaller size though the possibility also exists of its having fewer COO- groups. The equal mobility at acid pH arises because the extra resistance encountered by the larger molecule is balanced by a higher positive charge due to histidine. The proteins appear to correspond to the _γ2 and _γ3 Ponca gliadins isolated at Peoria, and this supports the idea that gliadins of equal mobility from different varieties have very similar structures. A rapid way of calculating recovered protein is mentioned.     

Decontamination of chokeberries (Aronia melanocarpa L.) by cold plasma treatment and its effects on biochemical composition and storage quality of their corresponding juices

To improve the microbiological quality of chokeberries, corona discharge plasma jet (CDPJ) was employed as a decontaminating agent. The mean levels of aerobic bacteria and yeast and molds contaminants in chokeberries were 4.78 and 4.87 log CFU/g, respectively; the viable counts were decreased by 2.09 and 1.83 log units following CDPJ treatment for 3 min, respectively. A first-order kinetic model was well-suited for explaining the inactivations. The concentration of total polyphenols of chokeberries was unaffected (up to 3 min treatment), whereas DPPH radical scavenging activity was significantly decreased by CDPJ treatment (2 min and more). CDPJ treatment (all tested times) of chokeberries led to a significant decrease of monomeric anthocyanin content of their corresponding juices, whereas soluble solids content (Brix) and pH were unaffected. After storage at 4 °C for 72 h, juices obtained from CDPJ-treated berries possessed relatively low levels of contaminants with no significant alterations in pH and soluble solids content when compared with controls. In conclusion, CDPJ treatment for 2 min was optimal to improve the microbiological quality of the berries without negatively affecting biochemical qualities of their corresponding juices.     

SMAS/木质素磺酸钠接枝共聚物的制备及表征

以甲基丙烯磺酸钠(SMAS)与木素磺酸钠为原料,合成了新型表面活性剂,探讨SMAS用量、引发剂用量、反应时间、反应温度对接枝聚合反应的影响。通过红外(FT-IR)对其结构进行表征;通过凝胶渗透色谱(GPC)测定了其分子量以及分子量分布的变化;通过扫描电镜(SEM)对接枝聚合产物的外观形貌做出了分析。结果表明:SMAS与木质素磺酸钠接枝聚合成功;产物分子量50000的分子明显变少,而分子量50000的分子数目显著增多;产物的外观形貌发生了变化,产生了一些小突起。     

豆粕发酵制备大豆肽的研究

大豆肽是指将大豆蛋白水解成3～6个氨基酸的多肽,分子量在1000 Da左右。以豆粕为原料,采用发酵法生产大豆肽,通过微生物作用对某些苦味肽基团进行修饰和重组,使小肽之间、小肽与氨基酸之间发生移接、重排,制得的大豆肽具有较好的生理特性和加工特性,克服了酶解法产品苦味大和口感差等缺点,产品广泛用于食品、医药工业。     

瞬时聚合法合成高分子表面活性剂

采用瞬时聚合法合成了高分子表面活性剂AM -AA-BA 共聚物,对其表面活性进行了研究,用凝胶色谱和红外光谱对其结构进行了分析.结果表明,产物为各反应单体的聚合物,分子质量在4 万左右,具有一定的表面活性,其表面张力最低可达41.0m N/m ,与无机盐复配可提高表面活性,起到增效作用.