Lubricant for hot extrusion molding titanium alloy pipe as well as preparation method and application thereof

A technology of lubricants and titanium alloys, applied in the direction of lubricating compositions, additives, coatings, etc., can solve the problems of poor fluidity of glass lubricants, peeling and cracking, etc., to ensure bond strength and anti-oxidation effect, improve High temperature viscosity, the effect of avoiding bubbling

Pending Publication Date: 2021-03-23
AEROSPACE HIWING HARBIN TITANIUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of poor fluidity and easy peeling and cracking of existing glass lubricants in the extrusion lubrication process, the present invention provides a lubricant for hot extrusion forming titanium alloy pipes and its preparation method and application

Method used

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  • Lubricant for hot extrusion molding titanium alloy pipe as well as preparation method and application thereof
  • Lubricant for hot extrusion molding titanium alloy pipe as well as preparation method and application thereof
  • Lubricant for hot extrusion molding titanium alloy pipe as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: A heat squeezed-type titanium alloy tube in this example is a lubricant according to the mass fraction of 36.5 parts of SIO 2 , 3 copies of Al 2 O 3 23 copies of B 2 O 3 , 19 serving NA 2 O, 6 copies of CaO, 3 serving MgO, 5 parts of BAO, 3 copies of ZnO and 1.5 parts of LIO were prepared.

Embodiment 2

[0029] Example 2: The method of preparing a thermal extrudent titanium alloy tube according to Example 1 is carried out by the following steps:

[0030] First, put the SIO 2 , Al 2 O 3 , B 2 O 3 NA 2 O, CaO, MgO, BAO, ZnO and LIO were mixed uniform, and then heated from 1 h at 1300 ° C for 1 h to give a glass liquid;

[0031] Second, pour the glass fluid into the cold water, cold quench into glass particles, after drying at 25 ° C for 1 h, add absolute ethanol for spherical mill, to obtain glass powder having a particle size of 75 μm, after drying at 60 ° C for 1 h after 200 Sieves to get lubricants.

[0032] The lubricant produced by Example 2 was tested, and the specific parameters were: the heating rate was 10 ° C / min, the atmosphere was air, resulting in figure 1 The DTA test diagram shown. From figure 1 It can be seen that there is a softening temperature in 580 ° C. Some weak thermal peaks appeared in the temperature range of 620 ° C ~ 750 ° C, which may be due to the ar...

Embodiment 3

[0033] Example 3: Application of a thermal extrudent type titanium alloy tube according to Example 1, the specific steps are as follows:

[0034] The heat squeezing-type titanium alloy tube of 24 parts of Example 1 was uniform with 38 parts of the silicone acrylic resin and 38 parts of water, and then applied to the size specification The outer surface of the hollow titanium alloy tube is 0.15 mm, and the thickness is dried at room temperature at 25 ° C to obtain a coating, the size specification is Slider titanium alloy.

[0035] This embodiment is dry and completely after drying. figure 2 As shown, from figure 2 It can be seen that the protective lubricating material is removed evenly in the surface of the titanium alloy, has a certain bond strength, and there is no adverse phenomenon such as bubbling, cracking surface.

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Abstract

The invention discloses a lubricant for a hot extrusion molding titanium alloy pipe as well as a preparation method and application thereof, which belongs to the field of lubricants and preparation thereof, and aims to solve the technical problems of poor fluidity and easy peeling and cracking of the existing glass lubricant in the extrusion lubrication process. The lubricant for the hot extrusionmolding titanium alloy pipe is prepared from the following components in parts by mass: 35 to 45 parts of SiO2, 2 to 4 parts of Al2O3, 18 to 28 parts of B2O3, 17 to 21 parts of Na2O, 5 to 8 parts ofCaO, 1 to 5 parts of MgO, 1 to 8 parts of BaO, 1 to 5 parts of ZnO and 1 to 2 parts of LiO. The preparation method comprises the following steps of 1, uniformly mixing materials according to a formula, and then heating and smelting to obtain molten glass, and 2, pouring into cold water, carrying out cold quenching, drying, carrying out ball milling, drying, and screening to obtain the lubricant. The lubricant can be used as a lubricant for hot extrusion molding of titanium alloy pipes. After the TC4 titanium alloy coated with the lubricant coating is extruded, the surface of a pipe is integrally smooth, other obvious defects such as longitudinal and transverse scratches are avoided, and the overall surface quality is superior to the surface quality of the pipe extruded by a lubricant in the traditional process.

Description

Technical field [0001] The present invention belongs to the lubricant and the preparation thereof, and in particular, a lubricant for thermal extruding type titanium alloy tubes and a preparation method thereof. Background technique [0002] Titanium and its alloys are not good during the extrusion process due to the factor of the friction, so the lubricant must be lubricated. Titanium is easily formed with an extruded needle, a squeezing die, an iron-based or nickel-based heat-resistant molten iron material of 980 ° C, extrusion mold, and a steel resistant mold steel material. If there is no lubrication when the hot extrusion of the titanium alloy If the lubrication is not good, it is not only a severe mold wear, but also forms a deeper trench, scratch and scratching on the surface of the extruded product. [0003] Lubrication Problem has been the difficulty of hot extrusion technology at home and abroad, and also research hotspots. In thermal extrusion, the glass lubricant is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M125/28C03C12/00C03C1/00C09D133/04C09D7/61C10N40/24C10N30/06C10N30/10C10N50/08
CPCC10M125/28C03C12/00C03C1/00C09D143/04C09D7/61C10M2201/105C10M2201/062C10M2201/087C08K2003/2227C08K2003/2206C08K2003/222C08K2003/2203C08K2003/2296C08K3/36C08K3/22
Inventor 肖强刘振军吴东辉王本京高龙张洋
Owner AEROSPACE HIWING HARBIN TITANIUM IND
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