CUTTING FLUID, PREPARATION METHOD AND APPLICATION THEREOF

Abstract

The present application relates to metal cutting, and more particularly to a cutting fluid and a preparation method and an application thereof, especially the application in the processing of niobium-tungsten alloy (NB521). The preparation method of the cutting fluid is simple and requires low production cost. In the mechanical processing of niobium-tungsten alloy (NB521), the cutting fluid has good cooling performance, lubricity, load-bearing capacity, friction reduction and vibration absorption, and long service life. It also can effectively avoid built-up edges, thereby improving the service life of cutting tools and the processibility of materials. Therefore, products of good quality are produced to improve the yield, especially in the deep hole machining, and thus the cutting fluid of the present application is suitable for a wide range of applications.

Claims

1. A cutting fluid, comprising carbon tetrachloride and lard, wherein the cutting fluid is prepared by mixing the lard and the carbon tetrachloride at 15-25 C. under stirring.

2. The cutting fluid of claim 1, wherein a volume ratio of the carbon tetrachloride to the lard is 1:3-4.

3. The cutting fluid of claim 2, wherein a volume ratio of the carbon tetrachloride to the lard is 1:3.

4. The cutting fluid of claim 2, wherein a volume ratio of the carbon tetrachloride to the lard is 1:4.

5. The cutting fluid of claim 1, wherein the lard has a general formula of C.sub.nH.sub.(2n+1)OH, which comprises 49% by weight of oleic acid, 26% by weight of palmitic acid, 15% by weight of stearic acid, 5% by weight of linoleic acid, 1.5% by weight of palmitoleic acid, 1.5% by weight of myristic acid, and 2% by weight of moisture and impurities; and its melting point is 28-48 C.

6. An application of a cutting fluid, comprising: applying the cutting fluid between a product to be cut and a cutting tool by brushing or spraying.

7. The application of claim 6, wherein the cutting tool is used in mechanical lathe-turning or milling.

8. The application of claim 6, wherein the product to be cut is a niobium-tungsten alloy.

9. The application of claim 7, wherein the product to be cut is a niobium-tungsten alloy.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG. 1 is a schematic diagram showing a surface quality (roughness) of a product that is prepared using a cutting fluid for niobium-tungsten alloy (NB521) according to an embodiment of the present invention.

DETAILED DESCRIPTION OF EMBODIMENTS

[0017] The present invention will be further described in detail below with reference to the embodiments.

[0018] A cutting fluid for niobium-tungsten alloy (NB521) comprises: carbon tetrachloride (condensed formula: CCl.sub.4; molecular weight: 153.82; purity: 99.5% or more; density (20 C.): 1.592-1.598 g/ml); lard (general formula: C.sub.nH.sub.(2n+1)COOH; composition: 49% by weight of oleic acid, 26% by weight of palmitic acid, 15% by weight of stearic acid, 5% by weight of linoleic acid, 1.5% by weight of palmitoleic acid, 1.5% by weight of myristic acid, and 2% by weight of moisture and impurities; melting point: 28-48 C.).

[0019] The present application provides a method of preparing the cutting fluid for niobium-tungsten alloy (NB521), and the method comprises the following steps:

[0020] 1) preparing a container (e.g., a 3 L glass container) and a tool (e.g., a stainless steel stirring rod with a diameter of 10 mm);

[0021] 2) at 15-25 C., placing the lard to the glass container, and then slowly adding the carbon tetrachloride to the glass container under stirring, where the lard is 75-80% by volume, and the carbon tetrachloride is 20-25% by volume; and stirring the mixture clockwise at a speed of 30-50 r/min for 1 min, then stirring the mixture counterclockwise at a speed of 30-50 r/min for 1 min, performing the two stirring methods alternately until the mixture is uniformly mixed, thereby obtaining the cutting fluid for processing the niobium-tungsten alloy (NB521).

[0022] The cutting fluid is applied between the niobium-tungsten alloy and a cutting tool by brushing or spraying, and is suitable for mechanical lathe-turning and milling of the niobium-tungsten alloy.

Example 1

[0023] This embodiment provides a method of preparing a cutting fluid for niobium-tungsten alloy (NB521), comprising the following steps.

[0024] Raw materials, carbon tetrachloride and lard were used to produce the cutting fluid for niobium-tungsten alloy (NB521).

[0025] A container (e.g., a 3 L glass container) and a tool (e.g., a stainless steel stirring rod with a diameter of 10 mm) were used to produce the cutting fluid for niobium-tungsten alloy (NB521).

[0026] At 20-25 C., 80 ml of animal fat oil was placed in the container, then 20 ml of carbon tetrachloride was slowly added to the container under stirring. The mixture was stirred clockwise at a speed of 30-50 r/min for 1 min, and then the mixture was stirred counterclockwise at a speed of 30-50 r/min for 1 min. The two stirring methods were alternately performed until the mixture was uniformly mixed, thereby obtaining the cutting fluid for processing the niobium-tungsten alloy (NB521).

[0027] The cutting fluid was applied between the niobium-tungsten alloy (NB521) and the cutting tool of mechanical lathe-turning by brushing or spraying. The niobium-tungsten alloy (NB521) was subjected to lathe-turning, then the lathe-turned niobium-tungsten alloy (NB521) was measured on surface roughness, and the result was shown in FIG. 1 that the surface roughness of the lathe-turned niobium-tungsten alloy (NB521) reached Ra1.6 or more, indicating that the lathe-turned niobium-tungsten alloy (NB521) has desired surface roughness after cut with the cutting fluid.

Example 2

[0028] This embodiment provides a method of preparing a cutting fluid for niobium-tungsten alloy (NB521), comprising the following steps.

[0029] Raw materials, carbon tetrachloride and lard were used to produce the cutting fluid for niobium-tungsten alloy (NB521).

[0030] A container (e.g., a 3 L glass container) and a tool (e.g., a stainless steel stirring rod with a diameter of 10 mm) were used to produce the cutting fluid for the niobium-tungsten alloy (NB521).

[0031] At 15-20 C., 80 ml of animal fat oil was placed in the container, then 20 ml of carbon tetrachloride was slowly added to the container under stirring. The mixture was stirred clockwise at a speed of 30-50 r/min for 1 min, and then the mixture was stirred counterclockwise at a speed of 30-50 r/min for 1 min. The two stirring methods were alternately performed until the mixture was uniformly mixed, thereby obtaining the cutting fluid for processing the niobium-tungsten alloy (NB521).

[0032] The cutting fluid was applied between the niobium-tungsten alloy (NB521) and the cutting tool of mechanical lathe-turning by brushing or spraying. The niobium-tungsten alloy (NB521) were subjected to lathe-turning, then the lathe-turned niobium-tungsten alloy (NB521) was measured on surface roughness, and the result was shown that the surface roughness of the lathe-turned niobium-tungsten alloy (NB521) reached Ra1.6 or more, indicating that the lathe-turned niobium-tungsten alloy (NB521) has desired surface roughness after cut with the cutting fluid.

Example 3

[0033] This embodiment provides a method of preparing a cutting fluid for niobium-tungsten alloy (NB521), comprising the following steps.

[0034] Raw materials, carbon tetrachloride and lard were used to produce the cutting fluid for niobium-tungsten alloy (NB521).

[0035] A containers (e.g., a 3 L glass container) and a tool (e.g., a stainless steel stirring rod with a diameter of 10 mm) were used to produce the cutting fluid for the niobium-tungsten alloy (NB521).

[0036] At 20-25 C., 75 ml of animal fat oil was placed in the container, then 25 ml of carbon tetrachloride was slowly added to the container under stirring; the mixture was stirred clockwise at a speed of 30-50 r/min for 1 min, and then the mixture was stirred counterclockwise at a speed of 30-50 r/min for 1 min. The two stirring methods were alternately performed until the mixture was uniformly mixed, thereby obtaining the cutting fluid for processing the niobium-tungsten alloy (NB521).

[0037] The cutting fluid was applied between the niobium-tungsten alloy (NB521) and the cutting tool of mechanical turning by brushing or spraying. The niobium-tungsten alloy (NB521) were subjected to lathe-turning, then the lathe-turned niobium-tungsten alloy (NB521) was measured on surface roughness, and the result was shown that the surface roughness of the lathe-turned niobium-tungsten alloy (NB521) reached Ra1.6 or more, indicating that the lathe-turned niobium-tungsten alloy (NB521) has desired surface roughness after cut with the cutting fluid.

Example 4

[0038] This embodiment provides a method of preparing a cutting fluid for niobium-tungsten alloy (NB521), comprising the following steps.

[0039] Raw materials, carbon tetrachloride and lard were used to produce the cutting fluid for niobium-tungsten alloy (NB521).

[0040] A containers (e.g., a 3 L glass container) and a tool (e.g., a stainless steel stirring rod with a diameter of 10 mm) were used to produce the cutting fluid for the niobium-tungsten alloy (NB521).

[0041] At 15-20 C., 75 ml of animal fat oil was placed in the container, then 25 ml of carbon tetrachloride was slowly added to the container under stirring; the mixture was stirred clockwise at a speed of 30-50 r/min for 1 min, and then the mixture was stirred counterclockwise at a speed of 30-50 r/min for 1 min. The two stirring methods were alternately performed until the mixture was uniformly mixed, thereby obtaining the cutting fluid for processing the niobium-tungsten alloy (NB521).

[0042] The prepared cutting fluid was applied between the niobium-tungsten alloy (NB521) and the cutting tool of mechanical lathe-turning by brushing or spraying. The niobium-tungsten alloy (NB521) were subjected to lathe-turning, then the lathe-turned niobium-tungsten alloy (NB521) was measured on surface roughness, and the result was shown that the surface roughness of the lathe-turned niobium-tungsten alloy (NB521) reached Ra1.6 or more, indicating that the lathe-turned niobium-tungsten alloy (NB521) has desired surface roughness after cut with the cutting fluid.

[0043] The preparation method of the cutting fluid is simple and mild for operation and requires low production cost. In the mechanical processing of the niobium-tungsten alloy (NB521), the cutting fluid has good cooling performance, lubricity, load-bearing capacity, and friction reduction and vibration absorption. It also can effectively avoid built-up edges, thereby improving the service life of cutting tools and the processibility of materials. Therefore, products of good quality are produced to improve the yield, especially in the deep hole machining, and thus the cutting fluid of the present application is suitable for a wide range of applications.

[0044] The above are some exemplary embodiments of the present invention, which are not intended to limit the scope of the invention. Any equivalent substitutions or modifications, made by those skilled in the art based on the spirit of the disclosure, shall fall within the scope of the invention.