摘要:
A bonded abrasive article including a plurality of abrasive grains and an organic bond material, and a method for making said bonded abrasive article, are described herein. The abrasive article has a non-reinforced yield strength of at least about 28 MPa. An abrasive mix is also described herein, including abrasive grains, a bond material and an agglomeration inhibitor. The abrasive mix has a loose bond content that is less than approximately 9.9 %.
摘要:
A high silica glass composition comprising about 92 to about 99.9999 wt. % SiO2 and from about 0.0001 to about 8 wt. % of at least one dopant selected from Al2O3, CeO2, TiO2, La2O3, Y2O3, Nd2O3, other rare earth oxides, and mixtures of two or more thereof. The glass composition has a working point temperature ranging from 600 to 2,000° C. These compositions exhibit stability similar to pure fused quartz, but have a moderate working temperature to enable cost effective fabrication of pharmaceutical packages. The glass is particularly useful as a packaging material for pharmaceutical applications, such as, for example pre-filled syringes, ampoules and vials.
摘要翻译:高二氧化硅玻璃组合物包含约92-约99.9999wt。 %SiO 2和约0.0001-约8wt。 选自Al 2 O 3,CeO 2,TiO 2,La 2 O 3,Y 2 O 3,Nd 2 O 3,其它稀土氧化物中的至少一种掺杂剂的%,以及其两种或更多种的混合物。 玻璃组合物的工作点温度范围为600至2000℃。这些组合物表现出与纯熔融石英相似的稳定性,但具有适度的工作温度以使药物包装成本有效地制造。 该玻璃特别可用作药物应用的包装材料,例如预填充注射器,安瓿和小瓶。
摘要:
A bonded abrasive tool includes a bonded abrasive body having a bond matrix material comprising an organic bond material, abrasive grains contained within the bond matrix material, and chopped fiber bundles within the bond matrix material. The tool further has a porosity within the bonded abrasive body, wherein a majority of the porosity comprises pores surrounding the chopped fiber bundles.
摘要:
An abrasive tool having a body including an abrasive portion having abrasive grains contained within a matrix material and porosity characterized by a bimodal distribution of pores including large pores having an average large pore size (Pl) and small pores having an average small pore size (Ps), wherein Pl>Ps. The body of the abrasive tool further includes a first reinforcing member contained within the abrasive portion, and a percent thermal expansion over a temperature range for 25° C. to 450° C. of not greater than about 0.7%.
摘要:
A bonded abrasive tool includes a bonded abrasive body having a bond matrix material comprising an organic bond material, abrasive grains contained within the bond matrix material, and chopped fiber bundles within the bond matrix material. The tool further has a porosity within the bonded abrasive body, wherein a majority of the porosity comprises pores surrounding the chopped fiber bundles.
摘要:
An abrasive article with improved packing density and mechanical properties and method of making are disclosed. A method of making an abrasive mix with improved processability facilitates improved packing density, resulting in abrasive articles with improved mechanical properties.
摘要:
A glass composition is characterized by having little batch-to-batch variations in the properties of the glass products made thereof. The glass composition contains 40 to 99 wt. % SiO2 with a softening temperature ranging from 600° C. to 1650° C., and wherein the standard deviation of softening temperature measurements obtained from 10 or more randomly selected samples of glass articles produced from the lot is 10° C. or less.