1) the third grade deformed steel bars
三级螺纹钢
1.
20MnSiNb,the third grade deformed steel bars with large Widmanstaten and serious network Ferrolites,was heated at A1、A2 and A3,after keeping for certain time at different temperate,then cooled at ambient temperature with a certain cooling speed.
本文采用不同热处理工艺对具有粗大魏氏组织和严重网状铁素体的供货态20MnSiNb三级螺纹钢进行了热处理矫正处理,对其金相组织及力学性能进行了研究。
2) class Ⅲ thread steel
Ⅲ级螺纹钢
1.
Trial production technology of class Ⅲ thread steel instead of V with Nb at Nangang is introduced.
介绍了南钢公司以铌代钒生产Ⅲ级螺纹钢产品工艺试生产情况。
3) thread steel
螺纹钢
1.
Based on an analysis on the cooling simulating experienment to the brittleness of 20MnSi thread steel, the paper determines that Granular B is not the major factor of the brittle snap of steel.
针对20MnSi螺纹钢的脆断性进行轧后模拟冷却试验及分析。
2.
The application of grooveless rolling in the splitting rolling of small size thread steel has been described in this paper.
介绍了无槽轧制在小规格螺纹钢切分生产中的应用。
3.
Through adjusting steel composition,combining controlled rolling temperature and controlled cooling,460B thread steel is produced to meet user\'s needs.
通过对钢种成分进行适当调整,结合轧制温度及冷却控制,批量生产出满足用户需求的460B螺纹钢。
4) ribbed bar
螺纹钢筋
1.
The two-strands slit rolling technology for Φ18mm ribbed bar which was the big specification was designed by this paper according to the real situation of one steel plant’s bar producing line, the pass system and guide unit equipments of slit rolling were chosen and designed in detail.
本文结合某钢铁厂棒材生产线的实际情况,设计开发了Φ18mm大规格螺纹钢筋二线切分轧制工艺,对切分轧制孔型系统和导卫装置的选择和设计进行了较为详细的分析。
2.
A method for online tension measuring during cold rolling of ribbed bars is described.
介绍一种针对螺纹钢筋冷轧生产线中张力在线检测的光电非接触式检测方法 ,与现有的检测方法相比 ,这种方法具有检测速度高、检测精度高、检测结果一致性好、不接触目标等明显优
3.
There are a huge uses of hot rolled ribbed bars in our country.
在Ⅱ级钢筋(20 MnSi)的基础上加入微合金元素V或VN合金研究其对螺纹钢筋性能组织的影响,建立了添加VFe和VN钢筋V含量与强度的关系,为生产不同级别螺纹钢筋的合金化添加量奠定了基础。
5) ribbed bars
螺纹钢筋
1.
Combined with the production process and quality of the small size HRB335 (20MnSi)ribbed bars made in High-speed Wire Factory, Tangshan Iron and Steel Group Co.
结合唐钢高线厂HRB335(20MnSi)小规格螺纹钢筋生产工艺及产品质量,提出了采用吐丝后强制风冷工艺用20MnSi钢生产HRB400小规格螺纹钢筋产品的新工艺。
2.
Three types of ribbed bars with diameter of 18,22 and 25 mm respectively were tested,and the "position effect" was in fact confirmed.
文章用Φ18、Φ22、Φ25 3种规格的螺纹钢筋,对这种“位置效应”进行验证,得出了结论。
3.
The essay briefly introduces the water cooling technology applied in the manufacturing process of the hot-rolled ribbed bars of 20MnSiNb.
为今后500MPa 级螺纹钢筋生产,奠定了基础。
6) steel screw bushing
螺纹钢套
补充资料：螺纹
| 螺纹 screw thread 在圆柱或圆锥母体表面上制出的螺旋线形的、具有特定截面的连续凸起部分。螺纹按其母体形状分为圆柱螺纹和圆锥螺纹；按其截面形状（牙型）分为三角形螺纹、矩形螺纹、梯形螺纹、锯齿形螺纹及其他特殊形状螺纹，三角形螺纹主要用于联接，矩形、梯形和锯齿形螺纹主要用于传动；按螺旋线方向分为左旋螺纹和右旋螺纹，一般用右旋螺纹；按螺旋线的数量分为单线螺纹、双线螺纹及多线螺纹；联接用的多为单线，传动用的采用双线或多线；按牙的大小分为粗牙螺纹和细牙螺纹等。
圆柱螺纹的主要几何参数有：①外径（大径），与外螺纹牙顶或内螺纹牙底相重合的假想圆柱体直径。②内径（小径），与外螺纹牙底或内螺纹牙顶相重合的假想圆柱体直径。③中径，母线通过牙型上凸起和沟槽两者宽度相等的假想圆柱体直径。④螺距，相邻牙在半径线上对应两点间的轴向距离。⑤导程，同一螺旋线上相邻牙在中径线上对应两点间的轴向距离。⑥牙型角，螺纹牙型上相邻两牙侧间的夹角。⑦螺纹升角，中径圆柱上螺旋线的切线与垂直于螺纹轴线的平面之间的夹角。⑧工作高度，两相配合螺纹牙型上相互重合部分在垂直于螺纹轴线方向上的距离等。螺纹的公称直径除管螺纹以管子内径为公称直径外，其余都以外径为公称直径。螺纹已标准化，有米制（公制）和英制两种。国际标准采用米制，中国也采用米制。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条