CN103468984A

CN103468984A - Smelting technique of environment-friendly food machine material

Info

Publication number: CN103468984A
Application number: CN2013104082928A
Authority: CN
Inventors: 鱼寅石
Original assignee: CHANGSHU XINZHOU MACHINERY MANUFACTURING PLANT
Current assignee: CHANGSHU XINZHOU MACHINERY MANUFACTURING PLANT
Priority date: 2013-09-10
Filing date: 2013-09-10
Publication date: 2013-12-25

Abstract

The invention relates to a smelting technique of an environment-friendly food machine material. The material directly contacts food, and is used for processing and preparing the food; and the machine material is ZLD104. The smelting technique comprises the following steps: adding the ZLD104 and a fluxing agent accounting for 5 wt% of the ZLD104 at 200-300 DEG C; adding a refining agent accounting for 1.5% of the total furnace material at 730-750 DEG C; adding a modifier accounting for 2% of the total furnace material at 730-750 DEG C; and at 755-765 DEG C, removing slag, discharging and casting. The environment-friendly food machine material has the advantages of high hardness, high wear resistance and high corrosion resistance, and can prevent fine particles on the surface from shedding and polluting the food raw materials.

Description

The melting technology of environment-friendly type food machinery material

Technical field

The present invention relevant for food machinery field, particularly environmental protection, health, safety melting processing, the manufacturing process of food machinery material.

Background technology

Mechanical means usually adopt metallic substance as it main body as each parts, instrument.To realize high strength, high-speed industrial applications.And the mechanical propertys such as the intensity of metallic substance, hardness (wear resistance), plasticity and toughness normally show as mutual restriction, influence each other and jointly form the unity of contradictions body.For example, when the hardness (surface hardness) of material is higher, its toughness also is difficult to guarantee; Also mutually exist and restrict and contradiction and want to obtain between (soft, the low toughness) metallic substance that there is good processibility and the utility that obtains good service performance (high rigidity, high strength) after processing.

For the actual operation requirements of different industries and in conjunction with existing working method and ability, select rational alloying constituent and content and adopt rational melting process for machining and manufacturing, to reach preferred metal alloy compositions, be the direction of making great efforts in materials industry always.

As the important business in foodstuffs industry, safety and sanitation are the cardinal principle that foodstuffs industry need to be paid much attention to all the time.Also should adopt the machine tool of safety and sanitation to be processed food raw material food being processed to (particularly in precision work).Thereby obtain full safety, retrospective health system.

Sneak among food for solving corresponding impurity or objectionable impurities, a kind of melting processing, manufacturing process of safety and stability food machinery material need to be provided, ensure food sanitation and health of human body.

Summary of the invention

The invention provides a kind of melting technology of environment-friendly type food machinery material, described food machinery material directly contacts with the starting material of described food, to complete described food material processing and the preparation to being contacted, it is characterized in that: described mechanical material is the ZLD104 casting aluminium material, and wherein said melting technology is:

When temperature reaches 200-300 ℃, add ZLD104, add the flux of its weight 5% simultaneously;

When temperature reaches 730 ~ 750 ℃, in total time, be in 10 ~ 15 minutes, divide and add for 2 ~ 3 times the refining agent of total furnace charge 1.5% in aluminium alloy;

When temperature reaches 730 ~ 750 ℃ again, in total time, be in 15 ~ 18 minutes, add the alterant of total furnace charge 2%, to do rotten the processing;

When temperature reaches 755 ~ 765 ℃, skim and come out of the stove, and poured into a mould fast.

As a further improvement on the present invention, and described mechanical material wherein the mass percent of Si be: 8.0-10.0%; The mass percent of Mn is: 0.2 ~ 0. 5%; The mass percent of Mg is: 0.15 ~ 0. 25%; All the other are Al and trace impurity.

Embodiment

The mechanical material that technique provided by the present invention is processed is light, durable, corrosion-resistant, anti-oxidant.It has corrosion resistance nature, and meets safety, the hygienic requirements of food machinery in preliminary working, precision work, can keep the corrosion resistance nature of its elaboration face, can not cause the surface metal material to come off and sneak among food raw material.

And process using provided by the present invention is carried out melting to described material in crucible.

This melting technology, simple and environmental protection, tensile strength through the processor material meets: 800MPa, yield strength meets: 700MPa, hardness is HB:230, can overcome wearing and tearing, corrosion and the impact of the various materials in food precision work, prevent coming off and the contaminated food products raw material of tool surfaces fine particulate materials.

For example, the food machinery that this melting technology provides can be directly contacts with foodstuffs material (such as the rigid shell of food material common in the preliminary working operation, kernel, seed, impurity etc. even), and to its cut, the technological operations such as fragmentation, pulverizing, stirring, the friction of opposing food material.This environment-friendly type food machinery also can be in the precision work stage of food-processing simultaneously, with comprising food material, the mixture of food solvent, foodstuff additive contacts, and this mixture is carried out to power operation, and can resist the physics and chemistry that foodstuffs material, solvent, additive agent mixture form the machine material surface and impact.

Should be appreciated that invention which is intended to be protected is not limited to non-limiting embodiments, should be appreciated that non-limiting embodiments describes as just example.The protection domain of the essence that the application will require more is embodied in the scope that independent claim provide, with and dependent claims.

Claims

1. the melting technology of an environment-friendly type food machinery material, described food machinery material directly contacts with the starting material of described food, to complete described food material processing and the preparation to being contacted, it is characterized in that: described mechanical material is the ZLD104 casting aluminium material, and wherein said melting technology is:

2. melting technology as claimed in claim 1, it is characterized in that: described technique is carried out in crucible.

3. melting technology as claimed in claim 1, it is characterized in that: described food machinery material directly contacts with the mixture of food material, food solvent, foodstuff additive, and this mixture is carried out to power operation.

4. melting technology as claimed in claim 3, it is characterized in that: described power operation comprises: cutting, broken, pulverizing or stirring technique operation.

5. melting technology as claimed in claim 1 is characterized in that: and described mechanical material wherein the mass percent of Si be: 8.0-10.0%; The mass percent of Mn is: 0.2 ~ 0. 5%; The mass percent of Mg is: 0.15 ~ 0. 25%; All the other are Al and trace impurity.