新型切向分块式两面顶超高压模具

王伯龙; 李明哲; 刘志卫; 韩鑫

doi:10.11858/gywlxb.20180595

新型切向分块式两面顶超高压模具

doi: 10.11858/gywlxb.20180595

王伯龙^1,,
李明哲²,
刘志卫³,
韩鑫^1,*, ,

1.
山东理工大学农业工程与食品科学学院，山东淄博　255049
2.
吉林大学无模成形技术开发中心，吉林长春　130025
3.
安徽理工大学机械工程学院，安徽淮南　232001

基金项目: 国家自然科学基金（51605007）；吉林大学开放基金（K201705）

详细信息

作者简介:
王伯龙（1989－），男，博士研究生，主要从事超高压模具设计、大腔体静高压技术研究. E-mail:892460540@qq.com

通讯作者:
韩　鑫（1979－），男，副教授，硕士生导师，主要从事无模成形工艺及设备、塑性加工过程数值模拟研究. E-mail: hanxin@sdut.edu.cn

中图分类号: O521.3
计量
- 文章访问数: 6906
- HTML全文浏览量: 3233
- PDF下载量: 33
出版历程
- 收稿日期: 2018-07-11
- 修回日期: 2018-08-12

A Novel Tangential Split-Belt Ultrahigh Pressure Apparatus

WANG Bolong^1
,,
LI Mingzhe²,
LIU Zhiwei³,
HAN Xin^{1,*
, ,}

1.
School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255049, China
2.
Dieless Forming Technology Center, Jilin University, Changchun 130025, China
3.
School of Mechanical Engineering, Anhui University of Science and Technology, Huainan 232001, China

摘要

摘要: 以提高年轮式超高压模具的压力承载能力为目标，设计一种新型切向剖分式模具结构。切向剖分式结构通过剖分面上的相互摩擦和挤压，不仅能够消除压缸内壁的周向拉应力，而且在内壁上产生较大的周向压应力。这种受压状态对硬质合金材料非常有利，可以显著提高压缸的极限承载能力。数值模拟结果显示，在相同的载荷条件下，分块式压缸受到的等效应力显著小于年轮式压缸。分块式压缸内壁的3个主应力均为压应力，且差值较小，接近于等静压状态，因此能够承受更高的样品腔压力。对比实验结果同样证明切向剖分式超高压模具结构具有更高的极限承载能力。
- 超高压装置 /
- 切向剖分 /
- 年轮式模具 /
- 压力承载能力
Abstract: A novel tangential split apparatus was designed to improve the pressure bearing capacity of the ultra-high pressure die. The tangential block structure can not only eliminate the circumferential tensile stress of the inner wall of the cylinder through mutual friction and extrusion on the split surface, but also generate a large circumferential compressive stress on the inner wall. This pressed state is very advantageous for the cemented carbide material and can significantly increase the ultimate pressure capacity of the cylinder. The numerical simulation results show that under the same load conditions, the equivalent stress of the segmented cylinder is significantly less than that of the belt cylinder. The three principal stresses on the inner wall of the block cylinder are compressive stress, and the difference is small. These stresses are close to the isostatic pressure state, so the cylinder can withstand higher sample chamber pressure. The comparative experimental results also prove that the tangential split-belt ultrahigh pressure apparatus has higher ultimate load carrying capacity.
- ultrahigh pressure apparatus /
- tangential split /
- belt type die /
- pressure bearing capacity

HTML全文

图 1 年轮式两面顶超高装置示意图

Figure 1. Schematic of belt type high pressure apparatus

下载: 全尺寸图片幻灯片

图 2 新型切向剖分块式高压模具示意图

Figure 2. Schematic of tangent split-belt high pressure die

下载: 全尺寸图片幻灯片

图 3 高压模具的主要结构尺寸

Figure 3. Geometric dimension of the high pressure die

下载: 全尺寸图片幻灯片

图 4 数值模拟中压缸的加载条件

Figure 4. Loading condition of the cylinder in the numerical simulation

下载: 全尺寸图片幻灯片

图 5 压缸的周向应力分布

Figure 5. Circumferential stress of the cylinder

下载: 全尺寸图片幻灯片

图 6 压缸的等效应力分布

Figure 6. Equivalent stress of the cylinders

下载: 全尺寸图片幻灯片

图 7 压缸内壁在轴向上的主应力分布

Figure 7. Three principal stresses in the axial direction of the cylinder

下载: 全尺寸图片幻灯片

图 8 两种压缸内壁轴向的等效应力

Figure 8. Equivalent stress on the inner wall of the cylinder

下载: 全尺寸图片幻灯片

图 9 实验用高压模具和不同的压缸结构：（a）超高压模具；（b）年轮式压缸；（c）分块式压缸；（d）破坏后的年轮式压缸；（e）破坏后的分块式压缸

Figure 9. High pressure die and different cylinders: (a) ultra-high pressure die; (b) belt type cylinder; (c) split cylinder; (d) belt cylinder after breakup; (e) split cylinder after breakup

下载: 全尺寸图片幻灯片

表 1 材料的主要性能参数^[14-15]

Table 1. Main performance parameters of the materials^[14-15]

Material	ρ₀/(g·cm^–3)	E/GPa	Poisson’s ratio	Failure strength/GPa
YG8	14.6	508	0.22	6.2
45CrNiMoVA	7.83	210	0.29	1.6

下载: 导出CSV

参考文献(17)

[1]	BASSETT W A. Diamond anvil cell, 50th birthday [J]. High Pressure Research, 2009, 29(2): 163–186. doi: 10.1080/08957950802597239
[2]	BUNDY F P, HALL H T, STRONG H M, et al. Man-made diamonds [J]. Nature, 1955, 176(4471): 51–55. doi: 10.1038/176051a0
[3]	HALL H T. Ultra-high-pressure, high-temperature apparatus: the "Belt" [J]. Review of Scientific Instruments, 1960, 31(2): 125–131. doi: 10.1063/1.1716907
[4]	KHVOSTANTSEV L G, VERESHCHAGIN L F, NOVIKOV A P. Device of toroid type for high pressure generation [J]. High Temperatures High Pressures, 1977, 9(3): 637–640.
[5]	胡静竹, 唐汝明, 徐济安. 金刚石压砧高压装置及I2和S高压相变的观察 [J]. 物理学报, 1980, 29(10): 1351–1354 doi: 10.7498/aps.29.1351 HU J Z, TANG R M, XU J A. The high pressure device of diamond anvil and the observation of phase transition of iodine and sulphur [J]. Acta Physica Sinica, 1980, 29(10): 1351–1354 doi: 10.7498/aps.29.1351
[6]	韩奇钢, 马红安, 肖宏宇, 等. 基于有限元法分析宝石级金刚石的合成腔体温度场 [J]. 物理学报, 2010, 59(3): 1923–1927 HAN Q G, MA H A, XIAO H Y, et al. Finite element method study on the temperature distribution in the cell of large single crystal diamond [J]. Acta Physica Sinica, 2010, 59(3): 1923–1927
[7]	KAWAI N, ENDO S. The generation of ultrahigh hydrostatic pressures by a split sphere apparatus [J]. Review of Scientific Instruments, 1970, 41(8): 1178–1181. doi: 10.1063/1.1684753
[8]	吕世杰, 罗建太, 苏磊, 等. 滑块式六含八超高压实验装置及其压力温度标定 [J]. 物理学报, 2009, 58(10): 6852–6857 doi: 10.3321/j.issn:1000-3290.2009.10.031 LÜ S J, LUO J T, SU L, et al. A slide-type multianvil ultrahigh pressure apparatus and calibrations of its pressure and temperature [J]. Acta Physica Sinica, 2009, 58(10): 6852–6857 doi: 10.3321/j.issn:1000-3290.2009.10.031
[9]	BUNDY F P. Pressure-temperature phase diagram of iron to 200 kbar, 900 ℃ [J]. Journal of Applied Physics, 1965, 36(2): 616–620. doi: 10.1063/1.1714038
[10]	LEGER J M, LORIERS-SUSSE C, VODAR B. Pressure effect on the Curie temperatures of transition metals and alloys [J]. Physical Review B, 1972, 6(11): 4250–4261. doi: 10.1103/PhysRevB.6.4250
[11]	肖宏宇, 李尚升, 秦玉琨, 等. 高温高压下掺硼宝石级金刚石单晶生长特性的研究 [J]. 物理学报, 2014, 63(19): 198101 doi: 10.7498/aps.63.198101 XIAO H Y, LI S S, QIN Y K, et al. Studies on synthesis of boron-doped Gem-diamond single crystals under high temperature and high pressure [J]. Acta Physica Sinica, 2014, 63(19): 198101 doi: 10.7498/aps.63.198101
[12]	王海阔, 贺端威, 许超, 等. 基于国产铰链式六面顶压机的大腔体静高压技术研究进展 [J]. 高压物理学报, 2013, 27(5): 633–661 doi: 10.11858/gywlxb.2013.05.001 WANG H K, HE D W, XU C, et al. Development of large volume-high static pressure techniques based on the hinge-type cubic presses [J]. Chinese Journal of High Pressure Physics, 2013, 27(5): 633–661 doi: 10.11858/gywlxb.2013.05.001
[13]	LIU Z, LI M, YANG Y, et al. Study on pressure capacity of multilayer stagger-split die, using simulation-based optimization [J]. High Pressure Research, 2013, 33(4): 787–794. doi: 10.1080/08957959.2013.825793
[14]	KLÜNSNER T, WURSTER S, SUPANCIC P, et al. Effect of specimen size on the tensile strength of WC–Co hard metal [J]. Acta Materialia, 2011, 59(10): 4244–4252. doi: 10.1016/j.actamat.2011.03.049
[15]	GETTING I C, CHEN G, BROWN J A. The strength and rheology of commercial tungsten carbide cermets used in high-pressure apparatus [J]. Pure and Applied Geophysics, 1993, 141(2): 545–577.
[16]	WANG B, LI M, YANG Y, et al. Note: double-beveled multilayer stagger-split die for a large volume high-pressure apparatus [J]. Review of Scientific Instruments, 2015, 86(8): 086106. doi: 10.1063/1.4929712
[17]	VRBKA J, KNESL Z. Proceedings of high pressure geoscience and material synthesis [C]. Berlin: Akademie-Verlag, 1988: 234.