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Metal hot piercing glass lubricant and metal hot piercing method

A technology of glass lubricant and metal heat, applied in metal rolling, metal rolling, metal processing equipment, etc., can solve problems such as guide plate wear and economic loss

Active Publication Date: 2021-04-16
BEIJING TIAN LICHUANG SCI & TECH OF GLASS DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a metal thermal perforation glass lubricant and a metal thermal perforation method to solve the serious wear of the guide plate in the process of metal thermal perforation in the prior art , causing substantial direct and indirect economic losses

Method used

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  • Metal hot piercing glass lubricant and metal hot piercing method
  • Metal hot piercing glass lubricant and metal hot piercing method
  • Metal hot piercing glass lubricant and metal hot piercing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Conditions of use, in the stainless steel hot piercing process, the blank heating temperature is 1220°C, and the blank size is Φ120×2200. The piercing process is as follows: Spread the glass lubricant on the turning platform, roll the heated cylindrical metal billet over the turning platform, so that the glass lubricant adheres to its surface; The billet is sent between the roller and the guide plate, so that the guide plate clamps the cylindrical metal billet, and the cylindrical metal billet is rotated under the drive of the roller; Metal bar stock to make it into metal tube.

[0048] The formula of glass lubricant is as follows, the particle size is 400-1340 mesh;

[0049]

[0050] The above glass lubricant has a viscosity value of 5000 poise at operating temperature.

[0051] Result: 24 hours non-stop work, the number of guide plate replacements was reduced from the original minimum of 36 to 13. The thread height difference (the height difference between the l...

Embodiment 2

[0053] Conditions of use, in the nickel-based alloy hot piercing process, the billet heating temperature is 1120°C, and the billet size is Φ1100×2200. The perforation process is the same as in Example 1.

[0054] The formula of glass lubricant is as follows, the particle size is 400-1000 mesh;

[0055]

[0056] Results: Nickel-based alloys cost the most guide plates, and they work 24 hours a day without stopping the machine. The number of guide plate replacements has been reduced from the original minimum of 47 to 16. The thread height difference (the height difference between the lowest point of the threaded position and the non-threaded position) is reduced from about 0.5mm to about 0.15mm. The surface photo of the metal pipe is shown in Figure 8 . In the past, the polishing times were 4-5 times, but now 1-2 times can be completed.

Embodiment 3

[0058] Conditions of use, in the hot piercing process of titanium alloy, the blank heating temperature is 880°C, and the blank size is Φ750×1500. The perforation process is the same as in Example 1.

[0059] The formula of glass lubricant is as follows, the particle size is 400-1000 mesh;

[0060]

[0061] Results: The wear of the titanium alloy on the guide plate is not very serious, and the number of guide plate replacements has been reduced from the original minimum of 23 pieces to 14 pieces without stopping the machine for 24 hours. ), from about 0.25mm to about 0.08mm, the surface photo of the metal pipe is shown in Figure 9 . In the past, the number of polishing was at least 2 times, and now it is 1 time, even without polishing.

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Abstract

The invention provides a metal hot piercing glass lubricant and a metal hot piercing method. The metal hot piercing glass lubricant comprises glass powder, an inorganic lubricant, a grinding agent and a separant, wherein the inorganic lubricant is one or more of boron nitride, graphite and molybdenum disulfide; and the grinding agent is carbide and / or oxide with the Mohs hardness larger than 6. By adopting the glass lubricant provided by the invention, the abrasion of a guide plate caused by high-speed rotation of a red hot rod blank in a metal hot piercing process is effectively reduced, and the phenomenon that slipping is easily caused after pure glass powder is hot-melted and spread is avoided, so that the metal hot piercing process is smoothly carried out, and direct or indirect economic loss caused by abrasion of the guide plate is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of metal thermal processing, in particular to a metal thermal perforation glass lubricant and a metal thermal perforation method. Background technique [0002] The metal thermal perforation method usually includes the following steps: such as figure 1 As shown, the cylindrical billet is heated to a certain temperature and sent into the space surrounded by the roll 10 and the guide plate 40 (guide plate). The guide plate 40 tightly clamps the billet 20, and the billet 20 rotates at a high speed driven by the roll 10, and the plug 30 penetrates the billet 20 under the push of the threading rod, and is made from a round bar into a round tube ( figure 1 A is the front view, B is the side view). During this process, the contact between the hot blank and the guide plate is the closest, and the friction is the most serious (see figure 2 ), so the guide plate becomes a process consumable. Especially for cemente...

Claims

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Application Information

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IPC IPC(8): B21B19/04B21B25/04
Inventor 邹丰王建峰冯驰张苻荣罗洪春段素杰
Owner BEIJING TIAN LICHUANG SCI & TECH OF GLASS DEV
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