环球法软化点(ring and ball softening point),是指钢球贯穿试样接触金属板时的温度。
خبير الاتصالThe ring and ball method which briefly consists of determin- of the best methods for such tests. Published directions for making the test are, and procedure used at the National Bureau of
خبير الاتصالRing and Ball Apparatus is used to determine the softening point of bitumen, waxes, LDPE, HDPE/PP blend granules, rosin and solid hydrocarbon resins. The apparatus was first designed in the 1910s while ASTM adopted a test method in 1916. This instrument is ideally used for materials having softening point in the range of 30 °C to 157 °C.
خبير الاتصالThe softening point is the temperature at which a material softens beyond some arbitrary softness. It can be determined, for example, by the Vicat method (ASTM-D1525 or ISO 306), Heat Deflection Test (ASTM-D648) or a ring and ball method (ISO 4625 or ASTM E28-67/E28-99 or ASTM D36 or ASTM D6493 - 11 or JIS K 6863). A ring and ball apparatus can also be used for the determination of softening point of bituminous materials.
خبير الاتصالSoftening Point Ring and Ball Apparatus determine the softening point of asphalt, coal tar pitch and other viscoelastic bitumens in the range of 30°–157°C (86°–315°F). The unit simultaneously tests two samples for optimal
خبير الاتصال2021年9月7日 The softening point of smooth native asphalt, road bitumen, coal bitumen, and blown bitumen can be measured by ring and ball apparatus. Hard bitumen and oxidized (blown) bitumen are specified by softening point and
خبير الاتصالRing and ball test is used to determine the softening point of bitumen, asphalt and coal tar. This test consists of two brass ring and two steel ball, using which the softening point of various bituminous materials are determined.
خبير الاتصالThis test is carried out by using the Ring and Ball apparatus. The softening point helps to determine the temperature up to which bitumen can be heated for different road use applications. It is also known as the Ring and ball Test.
خبير الاتصالSoftening Point Ring and Ball is the second oldest test method applied to bitumen, after needle penetration. It is the temperature at which a bitumen sample in a ring has had a deformation of
خبير الاتصال5 天之前 The ring and ball apparatus consist of following: Steel balls – two numbers each of 9.5 mm dia. And weighting 3.5 ± 0.05 g. Brass rings – two numbers of the ring each having depth
خبير الاتصالThe HRB 754 Ring Ball Tester automatically determines Softening Point of bitumen, tar, pitch, tall oil rosins, and polymeric resins via standard ring and ball test methods. Tests start in four
خبير الاتصالThe ring and ball apparatus consisting of: Steel balls-two numbers each of 9.5 mm diameter weighing 3.5 ± 0.05 g. Brass rings-two numbers each having depth of 6.4 mm. The inside diameter at bottom and top is 15.9mm and 17.5 mm
خبير الاتصال5 天之前 The ring and ball apparatus consist of following: Steel balls – two numbers each of 9.5 mm dia. And weighting 3.5 ± 0.05 g. Brass rings – two numbers of the ring each having depth
خبير الاتصالHold the ball over the flame for a few seconds, rotating it, and then pass the ball through the ring; Place the ball over the flame again for a few seconds, rotating it. You will see than now the ball
خبير الاتصال大量翻译例句关于"ring and ball" – 英中词典以及8百万条中文译文例句搜索。
خبير الاتصالMeasuring Ring-and-Ball Principle. The sample is heated in a liquid bath respecting the heating rate prescribed by the standards test methods. During this procedure the product gradually
خبير الاتصالThe Ring and Ball Apparatus is a precision testing instrument specifically designed for determining the softening point of bituminous materials, such as asphalt and pitch. This
خبير الاتصالRing and ball method Apparatus for softening point determinations for use with asphalts, pitches, tars and most resins. Sign In / Register. View Shopping Cart ... Ring and Stem Assembly, 16"
خبير الاتصالThe Automatic Ring and Ball Tester allows fully automatic performance of softening point determination of binders conforming to most common international Standards. Two binder
خبير الاتصالRing and Ball Apparatus. The Ring and Ball Apparatus is a compact user friendly apparatus. It has magnetic stirrer with heating facility and digital display of temperature, the heating can be
خبير الاتصالFind here Softening Point Apparatus, Ring and Ball Apparatus manufacturers, suppliers exporters in India. Get contact details address of companies manufacturing and supplying Softening Point Apparatus, Ring and Ball
خبير الاتصال2014年7月30日 1.1 This test method covers the determination of the softening point of bitumen in the range from 30 to 157 ° C [86 to 315 ° F] using the ring-and-ball apparatus immersed in
خبير الاتصالAutomatic Ring and Ball Tester, 230V/50-60Hz/1ph. Conforming to EN 1427, ASTM D36, AASHTO T53, IP 58, JIS K 2207, for the automatic determination of the softening point of
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خبير الاتصالThe apparatus is assembled with the rings, the appropriate thermometer, and ball guides in position, and the bath is filled to a height of 50 mm above the upper surface of the rings, as
خبير الاتصالSurveys have shown that the Mettler cup-and-ball method specified in ISO 4625-2 is the most widely used in the USA, while the Mettler method without the ball is the most widely used in
خبير الاتصالand ring-and-ball are equi the materials studied. Differences between changed. of the time. mn has to ained from [3] AnaChem UserCom 19, 18 [4] ASTM D6708 For more on Cup and Ball
خبير الاتصال2021年9月7日 Ring and Ball Test. The laboratory method of measuring the softening point is the ring and ball test. In this test, the bitumen sample is taken in two brass rings and steel balls
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خبير الاتصالRing and Ball Test Set (Softening Point Apparatus), Analog Model: B1790/D: Ring and Ball Test Set (Softening Point Apparatus), Digital Model: G300/05: Analog Magnetic Stirrer with Heater:
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