JPS62140729A - Operative jig - Google Patents

Abstract

PURPOSE:To carry out operations without causing damage to the plate surfaces of mechanical parts etc. by making a jig from a hydraulic hardened preparation coated with film of plastic,ceramic or metal. CONSTITUTION:An operating jig is made from a hydraulic hardened preparation coated with film of plastic, ceramic or metal. Here the hydraulic hardened preparation originates from a hydraulic hardening substance such as cement proper or even including aggregates. Cement proper signifies different types of Portland cement, normal, early strong, super-early strong, white, etc. and mix cement can also be used which is prepared by mixing the cement with an expansion agent or fly ash. As aggregate, sand and/or gravel available in usual construction material market can be used, but not limited thereto.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention consists of a hydraulic hardening body and a hydraulic hardening body with a synthetic resin, ceramics, or metal film formed on its surface, and is suitable for processing work and assembly work of parts. Regarding work jigs used for etc.

[Conventional technology]

The work jig according to the present invention is a type of tool that retains noise, and although its applications cannot be completely limited, it can be used in various industrial fields such as cutting, grinding, drilling, assembling, and inspecting parts. There is. Also, although the shape is a tool, it is a tool that holds something, and its shape depends on the shape of the parts and products used.

Conventionally, metal blocks have been manufactured by cutting and grinding (hereinafter simply referred to as "cutting") to match the dimensions of all parts models, or by copying the shape of part models using reaction-curing synthetic resin such as epoxy resin. However, the method of cutting metal blocks requires various expensive machines such as milling machines, cutting takes time, and the work jig itself is therefore expensive. was there. In addition, work jigs made of reaction-curing synthetic resin can be manufactured more easily than those made by cutting metal blocks, but the synthetic resin itself is expensive;
There have been problems such as the shape of working jigs made of synthetic resins being deformed because they are sensitive to heat and organic solvents such as gasoline and oil.

[Problem that the invention seeks to solve]

The present inventors have taken advantage of a simple method for manufacturing work jigs in which the entire shape of the part model to be processed and assembled is taken out using conventional reaction-curing synthetic resin, and the entire work jig is manufactured. As a result of various studies to solve the problems of the method of manufacturing work jigs such as reaction-curing synthetic resins, we found that hydraulic hardened materials made of hydraulic materials containing hydraulic substances such as cementum, and furthermore, The present invention was completed based on the knowledge that various performances of working jigs can be improved by using a hydraulically cured body with a coating of synthetic resin or the like formed on the surface.

This is a working jig consisting of a hydraulically hardened body with a synthetic resin, ceramic, or metal coating formed on its surface.

The present invention will be explained in more detail below.

The hydraulic hardened material according to the present invention is a hardened hydraulic material, and the hydraulic material is one that contains all of the hydraulic substances such as cementum and aggregate. Other examples include gypsum drops and blast furnace slag.

The cement materials used in the present invention include normal, early strength, ultra early strength, and white Portland cement, and these cements may be mixed with an expanding agent, fly ash, blast furnace slag, etc. Cement can also be used.

The aggregate may be flat gravel, which is generally used in the civil engineering and construction fields, but is not limited to these.
For example, sandstone, emery, pyrite, granite, andalusite, crossite, zircon, calcined bauxite, boron carbide, tungsten carbide, ferrosilicon nitride, silicon nitride, fused silica, fused magnesia, silicon carbide, cubic nitride. Silicon and gold are used.

Furthermore, a water reducing agent and/or ultrafine powder can be added to the hydraulic material of the present invention consisting of cementum, aggregate, and water in order to improve the strength and surface smoothness of the working jig to be manufactured.

Examples of water reducing agents include commonly used AE water reducing agents of lignin sulfonates and oxycarboxylate salts, salts of β-naphthalene sulfonic acid formalin condensates, salts of melamine sulfonic acid formalin condensates, and polycarzanes. Examples include high performance water reducing agents such as acid salts and polymeric lignin sulfonates. The amount of water reducing agent used is cementitious 100
It is preferably 0.1 to 5 parts by weight.

Ultrafine powder is one whose average particle size is one order of magnitude lower than that of cementitious powder, and in particular, one whose average particle diameter is two orders of magnitude lower increases the fluidity of the kneaded material, reduces water content, and has a strong Jff-? This is preferable from the viewpoint of improving smoothness. Examples of this ultrafine powder include, for example, silica dust (silica hume LIP siliceous dust) which is a by-product during the production of silicon, silicon-containing alloys, and zirconia, and other materials such as calcium carbonate, silica gel, opalescent sandstone, titanium oxide, Ultrafine powder such as aluminum can also be used.

The amount of ultrafine powder used is 2 parts per 100 parts by weight of cement.
-50 parts by weight is preferred, and 5-40 parts by weight is more preferred.

For work use, the surface of the hydraulically hardened body made of the above-mentioned hydraulic materials is coated with a coating of resin, rubber-like material, ceramics, metal, etc., to prevent damage to soft parts when assembling or processing them. It is valid. resin used,
Rubber-like substances, ceramics, or metals are not particularly limited, but include, for example, reaction-curing resins such as epoxy resins, urethane resins, and ester resins, rubber-like substances, solvent-diluted resins/rubber-like substances, and various other types. paint, copper, nickel, and gold plating. The method of forming these films on the work surface is not limited, but for example, before copying the model shape with a hydraulic material, the model may be coated with a resin or rubber-like substance in advance to form the entire film. Method: If the adhesive strength of the film is low, a water-soluble adhesive such as water-soluble epoxy is further applied, and the surface of the jig made of a hydraulic material is formed. It is also possible to use water bath adhesives. After creating a work jig, apply resin to its surface, create a gap with the model, form a film by pouring, apply paint, or form a film of resin or rubber-like material by spraying, etc. Further, there are methods of thermal spraying ceramics, electroless plating of copper, nickel, gold, etc., or methods of performing various electroplating after electroless plating to form the entire metal film.

〔Example〕

The entire history of the present invention will be explained below with reference to Examples.

Example 1 To manufacture a jig for fixing screws to mechanical parts, the formulations shown in Table 1 were used, the mixture was mixed in a hydraulic material mixer, poured into a mold in which a model of the part had been set, and cured. After curing, the part model was extracted to obtain a jig made of hydraulic material. Model the part before pouring the hydraulic material.
The surface to be copied onto the jig was the top surface, the parts not needed on the jig were covered with stone ribs, and the mold metal was set. The part model was sprayed with a release agent to a thickness of 50 μm, and the plaster surface was sealed and cured for 5 days, soaked in oil for 28 days, and then heated in a constant temperature room at 200° C. before being measured.

The molded jigs are fully used for assembling and processing parts, and experimental flats 2 to 4 with improved strength also hold the corners of the jigs better, have good smoothness, and are resistant to oil immersion and heating. A good jig with no change in compressive strength was also created.

Materials used: Cement: Denki Kagaku Kogyo ■; Ordinary Rutland cement Aggregate A: Mixture of borax No. 6 to No. 6 B: Calcined bauxite, particle size 1.2 Tomoshita C: Iron powder, particle size 0. 15 List of reductions Silica fume 2 Nippon Heavy Industries Ibityo Auxiliary product during the production of ferrosilicon Water reducing agent: High performance water reducing agent; β-naphthalene sulfonic acid formaldehyde V Metal shrinkage salt Example 2 Experiment of Example 1 / I6 Otsu All formulations were used, and a 50 μm release agent was applied to the part model in advance, and then all reactive hardening resins and rubbery substances were applied. Further apply the hardened water-soluble epoxy resin gold, and pour in the semi-hardened water-soluble epoxy resin.
After curing, the part models were removed and assembly work jigs were fabricated, each having a resin and rubber-like substance film formed thereon.

The epoxy resin and urethane resin film formed on the surface did not peel off even in a peel test using cellophane tape, and even when used for assembly of resin-plated parts that are attached to machine parts, the plated surface will not be damaged. Nona (・
It was a good jig.

Example 6 A thermal spray coating of alumina was formed on the surface of the jig manufactured using the experiment/164 formulation of Example 1, and a copper coating was completely formed.

The copper plating method involves soaking the jig produced in Experiment/164 in a palladium chloride solution (product name: Red Schumer, 5 times diluted solution manufactured by Kanigen ■) for 5 minutes, washing with water, and dipping it in an electroless steel plating solution. I dipped it and did all the copper plating. The electroless copper plating solution was sulfuric acid firJ29.9/l.

Consisting of sodium carbonate 25f; l/l, potassium sodium tartrate 1409/l, sodium hydroxide 40g/13 and 37% formalin aqueous solution 15Dd, 20'01
The plating conditions were as follows:

As a result, in the cellophane tape peel test, each film did not peel off, and the jig had good adhesion and did not damage the surface of the plated mechanical parts.

Example 4 Using the experiment of Example 1/163 formulation, a work jig (commonly known as secondary (What is called a model) was fully assembled. The manufacturing method involved setting up an outer frame around this iron plate, and placing all of the Styrofoam in a predetermined shape around the edges and perforations inside. Furthermore, after all the fixtures for attaching the cemented carbide tool for punching were installed, the cement mixture gold slurry mixed with the experimental Mizoro was injected. Also, steel fiber and deformed reinforcing bars were used together as reinforcement materials. Therefore, after sufficient curing, the mold is demolded, all of the styrofoam is removed, and a tool is installed to punch out the steel plate.

When this working jig was used to carry out all the secondary processing of a press-formed iron plate, the work could be carried out without any problems and the prescribed processing work could be completed.

Example 5 Using the same press-formed iron plate as in Example 4, a working jig for carrying out all of the same operations was manufactured using a cement mixture having the composition of Experiment/163. The manufacturing method is to set up an outer frame around a press-formed iron plate, install plaster made into a specified shape instead of styrofoam, and install all the fixtures, and then complete mold release treatment before placing the iron plate. and towards the plaster,
Sprayed stainless steel. Next, after taking steps to improve the adhesion between the sprayed layer and the hardened cement, experiment/P6
A cement mixture mixed with filtrate was poured. In addition, steel fibers and deformed reinforcing bars were used as reinforcing materials, and fixing anchors were provided on the fixtures to which all the carbide tools were attached.

When this working jig was used to carry out all the secondary processing of the press-formed iron plate, good results similar to those of Example 4 were obtained.

〔Effect of the invention〕

As described above, according to the present invention, a working jig with high strength, heat resistance, and solvent resistance can be easily manufactured, and furthermore, by forming a coating on the entire surface, it is possible to work without damaging the surface of plated mechanical parts. It became possible.

Furthermore, the working jig of the present invention can also be used as a working jig used for post-processing such as secondary processing and tertiary processing of press-formed iron plates. In addition, press-formed items are
It is not limited to iron plates, but can also be used for post-processing of press-molded products of other metals or resins.

Claims (2)

[Claims] (1) Work jig made of hydraulic hardening material (2) A working jig as set forth in claim (1), wherein a synthetic resin, ceramic, or metal film is formed on the surface of a hydraulically hardened body.