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Iron on bronze performance _1518

已有 201 次阅读2011-12-10 09:18 |


Iron on bronze performance


Sensitive increase in the amount of bronze iron content does not affect its mechanical properties, and iron alloy can be used as an additive in the use of keywords stubborn Bei Zhu Min j plug elongation Ga;! Stop farming shaking hand soap l, a,uggs online bestellen, cut off the feet I bronze is the most important conductive elastic material. It has high electrical conductivity, fatigue resistance, high strength,ugg outlet, high elasticity, elastic hysteresis,uggs outlet, corrosion resistance, non-magnetic,uggs sverige, shock does not produce sparks and other excellent performance, flexibility for other conductive materials can not match, which is widely used to make electronics,abercrombie espaa, electrical, instrumentation, telecommunications and other industries of the elastic element. The so-called bronze, is that adding beryllium copper alloy substrate. In people's minds tend to believe that iron is harmful impurities, the countries in bronze on the iron content of the standard,abercrombie fitch, there are stringent restrictions. If ASTMB194-84 standard provides the maximum iron content of less than 0.4,abercrombie madrid, China GB2533-85 standard provides not occur in the iron content of 0.15. In recent years, domestic and foreign scientific and technical personnel through the bronze in the iron content of the study and analysis. Found that iron is not only not harmful, but beneficial. Therefore, the iron has become the alloy additives. Second, the appropriate increase of Fe content on the strength of bronze useful to the former Soviet Union, the researchers found that adding copper alloy plated grinding issued on the date of receipt: 1D95-09-29, alum butterfly after milling. Alloy grain size will be significantly smaller,uggs kopen, while the hardness larger. When plated as 2.0 QBe2.0 containing alloy. The iron content of 0.15. At 300 ~ 320 ? aging later. Maximum hardness. Iron content greater than 0.32, the time after. Strengthen the role will become weak. The iron content from 0.05 to 0.24%. Not only does not affect its strength properties, and whether or aging after quenching. Flexibility also increased, shown in Figure 1. If the copper-plated iron alloy to continue. The iron content reaches l0, it will slow down the decomposition of solid solution, stable 'phase delay' opposite phase of the phase transition. In this way, but also to ensure good mechanical properties of alloys have three iron content of the test-bronze performance in recent years, foreign experts to study the addition of iron increased from 0.05 to 0.44 obtained under industrial conditions, bronze-plated QBe2.0 mechanical properties, physical properties and elastic properties. Bronze tablets in the high-frequency vacuum melting furnace, with a semi-continuous casting casting available. Melt iron content designed for 4 kinds of conditions, iron, plated, nickel content shown in Table l, the other two) a 3 Gansu Nonferrous Metals l carp 6, No. 1 into j 0.03 in silicon, aluminum, 0. 06, cadmium _l08. / Mantis dd flute volume button 8 Mey distillation Tuan selenium. l,abercrombie fitch madrid, f Bu Kan bite lllI4 difficult to pronounce the magic store 1QBe2.0 elastic limit is bronze and iron content and grain size relationship between a state of an elastic limit of a hard and soft state 2 b grain size of iron, beryllium, set content of table () Table l by the above four kinds of conditions to obtain the ingot melting, made of a strip thickness of 0.3mm. Been tested. Whether it is a hard state or soft state, its tensile strength from the effects of iron content, the soft state is 470 ~ 520MPa, the hard state is 735 ~ 775MPa. China YB552-75 standard, the soft state of not less than 392 ~ 588MPa,uggs nederland, the hard state of not less than 637MPa. Obviously,franklin marshall, with the iron content increases, the tensile strength is also slightly higher than our standard. Elongation but also with the increase of iron content. The industrial test, if the iron content of the soft state to 6 ~ 7,billiga uggs, the extension rate of 50 to 52, greater than our YB552-75 provides that not less than 30 indicators. Good homes iron bowl volume increased to 1.5 ~ 2. The elongation of 3 to 3. jX. Also enter on our YB552 one? 5 indicators shall not be less than 2.5 reasons. This is caused by adding iron on grain refinement. Figure l. If the temperature is 310C. The 2.3 ~ 3h time later. There will be some changes. Elongation decreased from 1.0 to 1.5. The tensile strength of the soft state is the child 77 ~ 1226MPa. Hard is the l265 ~ l304MPa. Small plastic deformation may be due to iron limitation after the generation phase of the brittle phase. Adding a small amount of iron (? 0.26) will increase resistance, but does not exceed the prescribed limits. Shown in Figure 2. In China, there is no clearly defined standard. /. - 2 /! 'Circle 2QBe2.0 time before and after the resistivity and the relationship between a lack of content in a hard state and soft state b 1 - when to teach before the 2-resistivity resistivity after aging elastic limit increases with iron content The significantly increased. Figure l analysis of the reasons, this is because in addition to grain size becomes smaller, the organization becomes more detailed, there is a new phase precipitation of iron reason. Time later, in an asymmetric alternating load fatigue tests done, pull the fatigue limit of 530MPa, fracture number of cycles in Table 2. (The switch 58) s guest. Negligent Lei
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