The invention relates to manufacturing equipment of metal materials, in particular to a double-nozzle-scanning inclined spray type cylinder blank injection moulding device The double-nozzle-scanning inclined spray type cylinder blank injection moulding device comprises a deposition chamber, wherein a ladle used for storing molten metal and atomizing nozzles connected to the bottom of the ladle are arranged at the top of the deposition chamber, and the deposition chamber is internally provided with a rotatable deposition substrate; the deposition substrate is arranged in the center of the deposition chamber and a rotating shaft of the deposition substrate is arranged in a vertical direction, and the atomizing nozzles are arranged above the deposition substrate; and the distances between the two atomizing nozzles and the axial lead of the deposition substrate are different The injection moulding device provided by the invention has the advantages: the operating stability and the moulding quality of the whole system are improved, and the requirement on the bonding strength of the deposition substrate and a cylinder blank is lower, thus ingot blanks in a larger scale can be conveniently manufactured; the two atomizing nozzles are adopted, and thus a large-diameter ingot blank product can be formed; waste of material and exhaust pollution can be reduced; and optimal moulding technological conditions can be conveniently formed

Double-nozzle-scanning inclined spray type cylinder blank injection moulding device

The invention discloses a method for preparing a heat-resisting aluminum alloy, and belongs to the field of metal manufacturing. The method comprises the steps that according to the shape of an Al-Fe-V-Si alloy part to be processed, a three-dimensional model is established; layered slice cutting processing is conducted on the three-dimensional model, so that the preset slice thickness in the height direction is formed; a scanning path of each slice is determined according to the cross section profile information of each slice of the three-dimensional model; a layer of pre-alloy powder is laidin accordance with the slice thickness to form a powder layer; the current powder layer is scanned by using a laser beam according to the scanning path, thus a deposition layer corresponding to a slice of the three-dimensional model is made; a control table is controlled to be dropped to the distance of the thickness of a slice, and a layer of pre-alloy powder is laid on the deposition layer againof a formed substrate plate through a powder paving mechanism according to the slice thickness to form a powder layer; and repeating is conducted until processing is finished. The alloy part preparedby the method is high in surface forming precision and good in quality, the research and manufacture cycle can be effectively shortened, the production efficiency is improved, and the production costis reduced.

Method for preparing heat-resisting aluminum alloy

The invention provides an aluminum bronze QA (Quality Assessment) 110-4-4 thin covering semi-continuous ingot casting preparation method During the production of aluminum bronze QA110-4-4 by a semi-continuous ingot casting method, a mixture prepared from cinders and cryolite according to a certain proportion is used as a covering agent for producing the aluminum bronze QA110-4-4 with the semi-continuous ingot casting method, and the covering agent is used in a thin covering way, that is to say, the covering agent is in a form of powder which is uniformly and continuously spread on the melt surface with the vibration of a crystallizer, and the thickness of the covering agent spread every time is not larger than 1mm The product provided by the invention has the characteristics of high finished product ratio, dense texture, excellent metallographic structure, high product strength, favorable plasticity and toughness, strong abrasion and corrosion resistance and the like

Aluminum bronze QA (Quality Assessment) 110-4-4 thin covering semi-continuous ingot casting technology

The invention provides a composite material jetting forming system and a preparing method. According to the composite jetting forming system, a storage tank, a screw feeder, a particle conveying device, a conveying pipeline and an atomization device communicate with one another in sequence. Solid particle materials are quantitatively conveyed into the particle conveying device through the screw feeder. The particle conveying device is divided into a high-pressure air flow area and a solid-gas two-phase particle flow area through a porous plate. The system conveys the materials in the system by means of high-pressure gas input from a high-pressure gas inlet, the high-pressure gas conveys the solid particle materials to the atomization device from the particle conveying device through the conveying pipeline, liquid materials flushed by and flowing from the liquid storage device are atomized, a water cooling base body is used for rapid cooling, and a blank is finally formed. The jetting forming system is simple, ingenious and compact in structure and good in operability, prepared mixed particle enhanced titanium-based composite materials are even and fine in grain, high in strength and good in performance.

Composite material jetting forming system and preparing method

The invention discloses a method for reducing internal superheat of casting metal. Superheat is directly lowered in the center of a large ingot by the aid of heat of molten metal, absorbed by a molten salt coolant melted in the center of the ingot, and segregation and shrinkage cavity defect are removed; the molten salt coolant is placed in the center of the ingot after casting, the heat around the molten metal is absorbed when the molten salt coolant is melted, the temperature of the center of the ingot is lowered, and formation of center segregation is suppressed; meanwhile, molten salt floating after being melt plays a role in slag insulation protection, crystalline latent heat is released from crystallization in the subsequent cooling process, function of exothermic riser is achieved, rehydration of the molten metal is benefited, and shrinkage cavity in the center of the ingot is reduced; the method is convenient in process and convenient for large-scale industrial production and application.

Method for reducing internal superheat of casting metal

The invention was involved in spray forming method, especially for preparation of 8009 alloy ingots. On the base of existing method, the powder of same alloy (the diameter is less than 43um) in the atomizing air to change the atomizing medium. The controlled temperature was 860-950deg.C and extrusion coefficient was 16-30.The melt temperature was 950-1250deg.C and the injection temperature wad 900-1200deg.C . The atomizing pressure was 0.4-0.8MPa and the pressure of sending powder was 0.1-0.2MPa. The chassis speed was 200-600r/min and the drop speed was 200-600r/min. The cooling velocity in the process of coagulation of preparation of 8009 alloy ingots was increased and the educt of Al3Fe4 phase was inhibited, so the mechanical property of 8009 alloy was improved totally. Increasing the recovery rate of powder was in favor of recovery of alloy powder and protection of environment.

Preparation of heat-resistant aluminium alloy

The invention was involved in an agent of fusion, especially for the agent of fusion for smelting heat-resisting aluminum alloy at high temperature. The agent of fusion consist of 60%-80% Na3AlF6, 5%-10% NaCl and 10%-20% CaF2. It had strong ability of adsorption, solution power and formation of slag. Compared with metal melt, the agent of fusion had rather large gravity difference. It was easy to separate the agent of fusion from metal for there was large boundary tension between metal melt and it. The agent of fusion had strong chemical stability and heat stability, so there was no corrosive action to metal and lining or no harmful gas and impurity. The agent of fusion with lower melting point and suitable viscosity, little hygroscopic ability and low vapor pressure was convenient to produce with cheap price. During the practice, the refine effect of slag removal and degasification were improved and metal oxidation, air-breathing and volatilization and the interaction of metal and lining were decreased so that the alloy technology was improved. The extensibility of alloy treated by antiflux was improved by 30% compared with the untreated alloy.

Wang Richu

Papers

Preparation of heat-resistant aluminium alloy

Solvent for high-temperature melting heat-resistant aluminium alloy