Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Coolant direct cooling process and device for hot forming die based on boron steel plate

A cooling liquid and heating device technology, applied in the direction of forming tools, manufacturing tools, metal processing equipment, etc., can solve problems such as dependent and limited heat transfer efficiency of mold steel

Inactive Publication Date: 2016-03-02
陈扬
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology enters the pressure-holding and cooling stage after being stamped and formed by the die. First, the heat is transferred to the die steel, and the die steel transfers the heat to the cooling water arranged in it, so as to realize the cooling of the boron steel workpiece; this way the workpiece The cooling efficiency depends not only on the arrangement of the cooling water circuit, but also is limited by the heat transfer efficiency of the mold steel. It belongs to the hot forming process of cooling the workpiece indirectly by the coolant.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Coolant direct cooling process and device for hot forming die based on boron steel plate
  • Coolant direct cooling process and device for hot forming die based on boron steel plate
  • Coolant direct cooling process and device for hot forming die based on boron steel plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 2 As shown, this embodiment includes: an upper mold 1 , a lower mold 2 and a semi-open cooling liquid channel 6 arranged on the contact surface of the upper mold 1 and the lower mold 2 . The coolant channels are unified into D9 semi-circular grooves, and the distance between the centers of the grooves is uniformly 12mm. The press is a 400T special press for thermoforming, and the cooling liquid provided is cooling water with an initial temperature controlled at 15-20°C, and the flow rate is set at 120L / Min.

[0039] The workpiece is a 1.5mm thick boron steel plate with a length of 1000mm and a section width of 150mm. The rounded corners are uniformly R9, and the draft angle is 60°C, that is, the arc length is 9.42mm.

[0040] Depending on the characteristics of the product workpiece 6, respective convex corners 2 and concave corners 3, as well as associated regions 4, are formed. During the high-temperature forming process, due to the existence of the ...

Embodiment 2

[0049] Such as figure 2 As shown, this embodiment includes: an upper mold 1 , a lower mold 2 and a semi-open cooling liquid channel 6 arranged on the contact surface of the upper mold 1 and the lower mold 2 . The coolant channels are unified into D6 semicircular grooves, and the distance between the centers of the grooves is uniformly 12mm. The press is a 150T special press for thermoforming, and the cooling liquid provided is cooling water whose initial temperature is controlled at 15-20°C, and the flow rate is set at 50L / Min.

[0050] The workpiece is a 1.5mm thick boron steel plate with a length of 300mm and a section width of 150mm. The rounded corners are uniformly R6, and the draft angle is 60°C, that is, the arc length is 6.28mm.

[0051] Depending on the characteristics of the product workpiece 6, respective convex corners 2 and concave corners 3, as well as associated regions 4, are formed. During the high-temperature forming process, due to the existence of the lo...

Embodiment 3

[0060] Such as figure 2 As shown, this embodiment includes: an upper mold 1 , a lower mold 2 and a semi-open cooling liquid channel 6 arranged on the contact surface of the upper mold 1 and the lower mold 2 . The coolant channels are uniformly 3mm wide and 9mm deep rectangular grooves, and the distance between the centers of the grooves is uniformly 12mm. The press is a 400T special press for thermoforming, and the cooling liquid provided is cooling water with an initial temperature controlled at 15-20°C, and the flow rate is set at 120L / Min.

[0061] The workpiece is a 2.5mm thick boron steel plate with a length of 1000mm and a section width of 150mm. The rounded corners are uniformly R6, and the draft angle is 30°C, that is, the arc length is 3.14mm.

[0062] Depending on the characteristics of the product workpiece 6, respective convex corners 2 and concave corners 3, as well as associated regions 4, are formed. During the high-temperature forming process, due to the exi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a cooling liquid direct cooling process and a cooling liquid direct cooling device of a thermal forming mold based on boron steel plates in the technical field of thermal treatment plastic forming. The device comprises an upper mold, a lower mold, semi-open cooling liquid passages and a cooling liquid supply system, wherein the semi-open cooling liquid passages are arranged on the contact surfaces of the upper mold and the lower mold, a press machine adopts the cooling liquid supply system to provide cooling liquid for the molds, the upper mold and the lower mold respectively consist of a plurality of plane regions, convex corner regions and concave corner regions, and the semi-open cooling liquid passages are respectively arranged in the plane regions and the concave corner regions of the lower mold and the plane regions and the concave regions of the upper mold. Workpieces can be smoothly formed through the mold punching in the forming stage, and in addition, the direct cooling of the workpieces by the cooling liquid in the pressure maintaining cooling stage can also be realized.

Description

technical field [0001] The invention relates to a method and equipment in the technical field of heat treatment plastic forming, in particular to a cooling liquid direct cooling process and device for a hot forming mold based on a boron steel plate. Background technique [0002] As a series of hot-formed steel plates, boron steel plates are produced in the following ways: figure 1 As shown, it is divided into two stages: forming and quenching and cooling, in which: the forming stage needs to be stamped and formed by a mold at high temperature; The transformation of the structure results in extremely high strength and hardness: depending on the type of boron steel, its strength can reach 500-2000MPa. The chemical composition of common boron steel with a strength of 1500MPa after hot forming is: [0003] C Si mn P S Cr B min 0.20 0.20 1.00 - - 0.15 0.0015 max 0.25 0.35 1.30 0.02...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/16
Inventor 陈扬
Owner 陈扬
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com