HOLLOW BODY FORMING DIE AND HOLLOW BODY FORMING METHOD

WIPO Patent Application WO/2020/093942

A1

Disclosed are a hollow body forming die and a hollow body forming method. The forming die comprises a left and a right half die (1), wherein the bottom of the left half die (1) is provided with a left avoidance groove (9), the bottom of the right half die (1) is provided with a right avoidance groove (9), a left bottom sliding block (2) is provided in the left avoidance groove (9), a right bottom sliding block (2) is provided in the right avoidance groove (9), and the left and right bottom sliding blocks (2) constitute a sliding block set. The design of the die solves the problem that a hollow body with a built-in component formed by an existing traditional process has a process hole. The hollow body forming method has the advantages of a short forming period, a high production efficiency, good combination between the built-in component and an inner wall of a fuel tank, and a high positional stability. According to the hollow body forming method, the process hole will not be formed, a subsequent procedure of welding a "cover cap" for sealing does not need to be added, and the method has the advantages of low emissions and low investment costs for equipment and personnel.

JIANG LIN (CN)
XU SONGJUN (CN)
GAO DEJUN (CN)
LI JIE (CN)
GE XUEJI (CN)
ZHANG CHAO (CN)
ZHOU WEI (CN)

PCT/CN2019/115035

May 14, 2020

November 01, 2019

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YAPP AUTOMOTIVE SYSTEMS CO LTD (CN)

B29C49/28; B29C49/22; B29C49/42; B29C49/56; B29L22/00

CN202029378U	2011-11-09
CN202029378U	2011-11-09
CN103507262A	2014-01-15
CN103328184A	2013-09-25
CN206357618U	2017-07-28
CN106584817A	2017-04-26
CN109228256A	2019-01-18
CN209521257U	2019-10-22
CN106079374A	2016-11-09
CN103144281A	2013-06-12
JP2003181908A	2003-07-03

NANJING ZHONGLIAN PATENT AGENCY CO., LTD (CN)

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