RU2624317C1 - Liquid polishing paste for processing of products based on aluminium - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: describes a liquid polishing paste for treating articles based on aluminium, including an abrasive, triethanolamine, stearic acid, liquid sodium glass and water, in which abrasive waste is used for polishing and grinding optical glasses at the following component ratio, wt %: waste from polishing and grinding optical glasses - 30, stearic acid - 7, liquid sodium glass - 2, triethanolamine - 2, water - the rest.

EFFECT: polishing paste has been obtained, which has a reduced cost, a method of increased economy by eliminating the multistage preliminary preparation of the original abrasive.

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Description

The invention relates to the machining of aluminum-based products.

Known paste for polishing parts of non-ferrous, stainless and hard alloys (see patent RU No. 2561086, class C09G 1/02, publ. 2015), containing the following components, wt.%:

abrasive micropowder based on aluminum hydroxide and iron oxide thirty stearic acid 7 liquid sodium glass 2 triethanolamine 2 water rest

However, the use of this known polishing paste reduces the efficiency of the process of obtaining the final product due to the sufficiently long multi-stage preparation of the initial abrasive material (abrasive micropowder based on aluminum hydroxide and iron oxide) and increases the cost of the final product.

The technical result from the use of the present invention is to improve the environment by disposing of waste from polishing and grinding optical glasses, reducing the cost of the final product while maintaining the polishing ability and increasing the efficiency of the process of obtaining the latter by eliminating the multi-stage preliminary preparation of the initial abrasive material (hydroxide-based abrasive micropowder aluminum and iron oxide).

The technical result from the use of the invention is achieved due to the fact that the liquid polishing paste includes abrasive material, triethanolamine, stearic acid, liquid sodium glass and water, and waste from polishing and grinding of optical glasses is used as an abrasive material in the following ratio of components, wt. %:

waste from polishing and grinding optical glasses thirty stearic acid 7 liquid sodium glass 2 triethanolamine 2 water rest

It should be noted that the use of wastes from polishing and grinding of optical glasses taken instead of an abrasive micropowder based on aluminum hydroxide and iron oxide, allowed us to obtain the final product with low cost and polishing ability similar to the prototype, and ensured the disposal of the above wastes obtained by polishing and grinding of optical glasses in relation to the processing of products (furniture handles based on aluminum). Optical glasses are cut with a cutting wheel based on corundum and silicon oxide (or a diamond wheel) with their subsequent polishing and grinding, and waste with a chemical composition is obtained: O2; Al; Si; Cu; K; Ca; Ti; Cr; Fe; Zn; Mg; Cl.

All mass ratios of the components of the polishing paste were determined experimentally and selected optimal. If we take the mass ratio of the components more or less beyond the limits, then this adversely affects the polishing ability of the paste.

The technical essence of the invention is illustrated by examples of specific performance.

Example 1 (best option)

For the experiment, stearic acid according to GOST 6484-96, liquid sodium glass according to GOST 13078-81 and triethanolamine according to TU 6-02916-79 were used.

In the reactor, water (59 wt.%) Is mixed with triethanolamine (2 wt.%) And with liquid sodium glass (2 wt.%). Then, stearic acid (7 wt.%) Is introduced into the resulting mass, usually at a temperature of 65 ° C, the mixture is stirred to a jelly-like mass, and waste from polishing and grinding of optical glasses (30 wt.%) Is added, followed by stirring until a homogeneous mass is obtained.

For the experiment, we used the paste obtained for processing door handles made of non-ferrous alloy based on aluminum on the Monetka machine and the polishing ability indices shown in Table 2 were obtained.

Example 2

For the experiment, stearic acid according to GOST 6484-96, liquid sodium glass according to GOST 13078-81 and triethanolamine according to TU 6-02916-79 were used.

In the reactor, water (56 wt.%) Is mixed with triethanolamine (2 wt.%) And with liquid sodium glass (2 wt.%). Then, stearic acid (7 wt.%) Is introduced into the resulting mass, usually at a temperature of 65 ° C, the mixture is stirred to a jelly-like mass, and waste from polishing and grinding of optical glasses (33 wt.%) Is added, followed by stirring until a homogeneous mass is obtained.

Example 3

For the experiment, stearic acid according to GOST 6484-96, liquid sodium glass according to GOST 13078-81 and triethanolamine according to TU 6-02916-79 were used.

In the reactor, water (64 wt.%) Is mixed with triethanolamine (2 wt.%) And with liquid sodium glass (2 wt.%). Then, stearic acid (7 wt.%) Is introduced into the resulting mass, usually at a temperature of 65 ° C, the mixture is stirred to a jelly-like mass, and waste from polishing and grinding of optical glasses (25 wt.%) Is added, followed by mixing until a homogeneous mass is obtained.

Example 4

For the experiment, stearic acid according to GOST 6484-96, liquid sodium glass according to GOST 13078-81 and triethanolamine according to TU 6-02916-79 were used.

In the reactor, water (56 wt.%) Is mixed with triethanolamine (2 wt.%) And with liquid sodium glass (1 wt.%). Then, stearic acid (6 wt.%) Is introduced into the resulting mass, usually at a temperature of 65 ° C, the mixture is stirred to a jelly-like mass, and waste from polishing and grinding of optical glasses (35 wt.%) Is added, followed by mixing until a homogeneous mass is obtained.

Example 5

For the experiment, stearic acid according to GOST 6484-96, liquid sodium glass according to GOST 13078-81 and triethanolamine according to TU 6-02916-79 were used.

In the reactor, water (62 wt.%) Is mixed with triethanolamine (3 wt.%) And with liquid sodium glass (1 wt.%). Then, stearic acid (6 wt.%) Is introduced into the resulting mass, usually at a temperature of 65 ° C, the mixture is stirred to a jelly-like mass, and waste from polishing and grinding of optical glasses (28 wt.%) Is added, followed by mixing until a homogeneous mass is obtained.

Examples 2-5, analogously to example 1, were carried out on the transcendental values of the mass ratios of the components of the liquid polishing paste. The compositions of the liquid polishing pastes are presented in table 1, and table 2 presents examples 1-5 with the provision of the treated surface Ra.

Thus, when using the proposed technical solution, environmental improvement is achieved through the disposal of waste from polishing and grinding optical glasses, reducing the cost of the final product compared to the prototype and increasing the efficiency of the process of obtaining the latter by eliminating the multi-stage preliminary preparation of the initial abrasive material (abrasive micropowder based on aluminum hydroxide and iron oxide) with the provision of similar indicators of polishing ability.

Claims (2)

Liquid polishing paste for processing aluminum-based products, including abrasive material, triethanolamine, stearic acid, liquid sodium glass and water, characterized in that the waste material from polishing and grinding of optical glasses is used as an abrasive material in the following ratio of components, wt.%: waste from polishing and grinding optical glasses thirty stearic acid 7 liquid sodium glass 2 triethanolamine 2 water rest