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1)  thermal aging property
耐热老化性能
1.
The effect of the sorts and addition level of short fibre on the physical properties and thermal aging property of short fibre/CR composite was investigated.
试验研究短纤维种类和用量对短纤维/CR复合材料物理性能和耐热老化性能的影响。
2.
The results showed that the processibility,scorch time and curing rate changed little as the addition level of EPDM increased up to 30 phr;and when compared to IIR vulcanizate,IIR/EPDM vulcanizate possessed lower cross-link density,higher tensile strength and elongation at break,a little higher tear strength,similar thermal aging property,smaller tanδ at -10~+25 ℃ and greater tanδ at 25~200 ℃.
结果表明,在EPDM用量不超过30份时,随着EPDM用量的增大,IIR/EPDM并用胶的加工性能、焦烧时间和硫化速度变化不大;与IIR硫化胶相比,IIR/EPDM并用胶的交联密度减小,拉伸强度和拉断伸长率增大,撕裂强度略有提高,长期耐热老化性能相当,-10~+25℃时的损耗因子小于IIR硫化胶,25~200℃时的损耗因子大于IIR硫化胶。
3.
The results showed that a NR compound with the highest curing rate was obtained by using 4070/RD,its vulcanizate possessed the excellent flex cracking resistance,thermal aging property,fatigue resistance and hot water extraction resistance,and the comparable light aging property to those by using 4020/RD or 3100/RD.
结果表明,防老剂4070/RD并用胶的硫化速度最快,硫化胶的抗屈挠裂口性能、耐热老化性能、耐疲劳性能和耐热水抽提性能最优,耐日光老化性能相当于防老剂4020/RD和3100/RD硫化胶。
2)  heat aging property
耐热老化性能
1.
The influence of the EPDM/NR blending ratio and the multiplex curing system on the curing behavior,physical properties and heat aging property of blends was investigated.
采用硫黄硫化体系和过氧化物(硫化剂DCP)硫化体系对EPDM/NR并用胶实施复合交联,研究并用比和复合交联体系对胶料的硫化特性、物理性能和耐热老化性能的影响。
2.
The effect of TMTD on the curing behaviour,physical properties,heat aging property and permanent set at high temperature of CO/ECO was investigated.
研究促进剂TMTD用量对均聚型氯醚橡胶 (CO) /共聚型氯醚橡胶 (ECO )并用胶硫化特性、物理性能、耐热老化性能和高温压缩永久变形的影响。
3)  thermal aging resistance
耐热老化性能
1.
Study on mechanical properties and thermal aging resistance of NR/ENR blends;
天然橡胶/环氧化天然橡胶共混体系力学及耐热老化性能的研究
2.
Influence factors on thermal aging resistance of unsaturated polyether polyurethane rubber/chloroprene rubber blends;
不饱和聚醚型聚氨酯橡胶/氯丁橡胶共混物耐热老化性能的影响因素
3.
The comparison of properties of nitrile rubber(NBR) produced by Lanzhou Petrochemical Co(LZSH) with similar products which sold in domestic market was conducted in curing characteristics,stress-strain properties,thermal aging resistance,compression set,abrasion resistance and oil resistance.
对兰州石化公司丁腈橡胶(NBR)与国内市场销售的NBR的硫化特性、应力-应变性能、耐热老化性能、压缩永久变形、耐磨性和耐油性进行了对比研究。
4)  heat aging properties
耐热老化性能
1.
Influence of curing system on heat aging properties of EPDM;
硫化体系对EPDM耐热老化性能的影响
2.
In this work,the effect of blending ratios of CR/CIIR,curing systems,softening agent,the different kinds and dosages of carbon black on heat aging properties of vulcanized CR/CIIR blends was investigated in detail.
研究了共混比、硫化体系、炭黑品种及用量、软化剂种类等对CR/CIIR硫化胶耐热老化性能的影响。
5)  heat aging resistance
耐热老化性能
1.
The results showed that the EPDM/POE composites with high heat aging resistance was prepared by using the most lowly unsaturated EPDM and ethylene-octene copolymers(POE) as rubber matrix,zinc methacrylate(ZDMA) as reinforcing/adhesive agent,liquid ethylene-propylene copolymers(LEPM) as plasticizing agent and N-4(Anilino pheny1) maleimide(MC) as reactive antioxidant.
从橡胶基体、交联体系、补强体系、防老体系和增塑体系等方面着手,研究了配合体系对乙丙橡胶复合材料耐热老化性能的影响。
6)  hot air aging resistance
耐热空气老化性能
1.
The influence of HNBR saturation degree on the physical properties,hot air aging resistance and flame retardance of HNBR compound was investigated.
研究饱和度对氢化丁腈橡胶(HNBR)胶料物理性能、耐热空气老化性能和阻燃性能等的影响。
补充资料:不锈钢的物理性能、力学性能和耐热性能
不锈钢的物理性能


不锈钢和碳钢的物理性能数据对比,碳钢的密度略高于铁素体和马氏体型不锈钢,而略低于奥氏体型不锈钢;电阻率按碳钢、铁素体型、马氏体型和奥氏体型不锈钢排序递增;线膨胀系数大小的排序也类似,奥氏体型不锈钢最高而碳钢最小;碳钢、铁素体型和马氏体型不锈钢有磁性,奥氏体型不锈钢无磁性,但其冷加工硬化生成成氏体相变时将会产生磁性,可用热处理方法来消除这种马氏体组织而恢复其无磁性。

奥氏体型不锈钢与碳钢相比,具有下列特点:

1)高的电阴率,约为碳钢的5倍。

2)大的线膨胀系数,比碳钢大40%,并随着温度的升高,线膨胀系数的数值也相应地提高。

3)低的热导率,约为碳钢的1/3。

不锈钢的力学性

不论不锈钢板还是耐热钢板,奥氏体型的钢板的综合性能最好,既有足够的强度,又有极好的塑性同时硬度也不高,这也是它们被广泛采用的原因之一。奥氏体型不锈钢同绝大多数的其它金属材料相似,其抗拉强度、屈服强度和硬度,随着温度的降低而提高;塑性则随着温度降低而减小。其抗拉强度在温度15~80°C范围内增长是较为均匀的。更重要的是:随着温度的降低,其冲击韧度减少缓慢,并不存在脆性转变温度。所以不锈钢在低温时能保持足够的塑性和韧性。

不锈钢的耐热性能

耐热性能是指高温下,既有抗氧化或耐气体介质腐蚀的性能即热稳定性,同时在高温时双有足够的强度即热强性。

不锈钢国际标准标准

标准 标准名


GB 中华人民共和国国家标准(国家技术监督局)

KS 韩国工业标准协会规格Korean Standard

AISI 美国钢铁协会规格America Iron and Steel Institute

SAE 美国汽车技术者协会规格Society of Automative Engineers

ASTM 美国材料试验协会规格American Society for Testing and Material

AWS 美国焊接协会规格American Welding Society

ASME 美国机械技术者协会规格American Society of Mechanical Engineers

BS 英国标准规格British Standard

DIN 德国标准规格Deutsch Industria Normen

CAS 加拿大标准规格Canadian Standard Associatoin

API 美国石油协会规格American Petroleum Association

KR 韩国船舶协会规格Korean Resister of Shipping

NK 日本省事协会规格Hihon Kanji Koki

LR 英国船舶协会规格Llouds Register of Shipping
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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