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www.dgfeman.com/heat-treatment-of-precision-plastic-injec...
In the process of heat treatment, the precision plastic injection mold often produces deformation. In order to prevent this kind of problem, as long as we grasp the deformation law, analyze the causes, and adopt different methods to prevent the deformation of the mold, it can be reduced and controlled. In general, the following methods can be adopted to prevent the heat treatment deformation of precision injection mold.
(1) Reasonable selection of materials: the micro deformation die steel with good material should be selected for the precision plastic injection mold, the mold steel with severe carbide segregation should be reasonably cast and carried out, and the large and non-casting mold steel can be treated with solid solution double refinement heat treatment.
(2) The mold structure design should be reasonable, the thickness should not be too different, and the shape should be symmetrical. For the large deformation mold, we should grasp the deformation pattern and reserve the processing allowance. For the large ones, the combined structures of precision injection mold can be adopted.
(3) The precision injection mold should be pre-heat treated to eliminate the residual stress in the process of mechanical processing.
(4) Reasonably select the heating temperature and control the heating speed. For the precision injection mold, slow heating, preheating and other balanced heating methods can be adopted to reduce the heat treatment deformation of the mold.
(5) Under the condition of ensuring the hardness of the mold, the pre-cooling, staged cooling quenching or warm quenching process of the injection mold should be adopted as far as possible.
(6) For precision injection mold, vacuum heating quenching and cryogenic treatment after quenching shall be adopted as far as possible if the premise permits.
(7) The precision of some precision and complicated dies can be controlled by pre-heating treatment, aging heat treatment, quenching, tempering and nitriding heat treatment.
(8) When repairing sand hole, air hole, wear and other defects of mold, cold welding machine and other repair equipment with small heat influence shall be selected to avoid deformation in the repair process.
www.brothertools.com/product/tool-kits/high-quality-preci...
Zhejiang Xinchang Brother Tools Co.,Ltd, which is found in 1980, covers 1200 square meters. It is from Xinchang city,the neighbor with Ningbo port. As a well-known China Household Hand Tools Manufacturers and custom Household Hand Tools factory, from the begin ,we just produced steel files, but in the past 30 years, we have developed a lot of other hand tools, including Wood chisel, Screwdrivers, Tool kits, Hex keys, Suction cups, Hand saws are all covered.
Machined Fabrications Ltd, is a machining & fabrication company. Our extensive workshops and comprehensive range of Large CNC machine tools, modern tooling, and a highly skilled workforce support our commitment to consistently high standards of product and service.
The ability to complete the fabrication, machining, and surface finishing within our own plant enables us to provide a rapid, cost effective service allowing us to meet the specifications and demanding schedules required by our customers
Machined Fabrications Ltd. Machined Fabrications are very proud to announce that we have now attained the Steel Construction Certificate Scheme (SCCS) Weld Certificate and Factory Production Control Certificate confirming compliance and effective implementation of the Management System in accordance with the requirements of BS EN1090-1:2009, this falls in line with the new legal obligation that all fabricated structural steelwork is CE Marked.
We also have 4 large CNC machine shops that offer a wide range of large CNC machines at all used for Subcon Machining , the group consists of , Machined Fabrications Ltd , Ufone Precision Engineers Ltd and Adelaide Engineering Co Ltd & Askey Precision Engineering .
Our extensive workshops and comprehensive range of CNC machine tools, modern tooling, and a highly skilled workforce support our commitment to consistently high standards of product and service.
The ability to complete the fabrication, machining, Our Large CNC machines are operated by our highly skilled, experienced engineers excel at milling & turning. We have one of the largest ranges of modern CNC lathes in the country and these are available for subcontract work.
At Machined Fabrications we have been providing the Power Generation Oil & Gas and Petrochemical industry with the highest quality CNC Machining Services.
Large CNC Machining / Large CNC Milling / SubCon / Heavy /Medium / Precision CNC Machining /Subcontract
Stena Precision Ro-Ro cargo ferry moored at Twelve Quays South before going into Cammell Laird wetbasin later that night. She will once again become Seatruck
IMO: 9506239
MMSI: 235092453
Call Sign: 2FMI8
Flag: Great Britain
AIS Vessel Type: Cargo - Hazard A (Major)
Gross Tonnage: 19722
Deadweight: 5600 t
Length Overall x Breadth Extreme: 142m × 25m
Year Built: 2012
Status: Active
Registered owner: SEATRUCK FERRIES FOUR LTD
Ship manager: SEATRUCK FERRIES LTD
Shipyard: Flensburger Schiffbau-Gesellschaft mbH & Co. KG, Germany
Hull Number: 752
Contract date: 2008-02-26
Keel laid: 2012-01-16
Launch: 2012-03-16
Date of build: 2012-06-29
A few nice precision engineering services photos I found:
Red Arrows Show Group for 2014
Image by Defence Pictures
The Royal Air Force Aerobatics Group (RAFAT), The Red Arrows for the 2014 show season line up in front of one particular of their Hawk aircraft at RAF Scampton.
The Royal Air Force...
Read more about Good Precision Engineering Solutions pictures
(Source from Chinese Rapid Prototyping Blog)
Golpeo con el empeine interior de la pierna derecha buscando siempre la precisión máxima en pases de corta distancia.
Being extremely silly testing my ability to precisely toss and spin my camera. The object of the experiment was to match the spin of the ceiling fan blades so that they appear non moving while everything else moves.
3Q Machining - High Precision CNC Machining Services for Prototyping & Production of Custom Parts. 3Q Machining is top quality CNC Machining manufacturer factory in China for your custom precise plastic & metal machining parts from CAD drawings to final shipment, low MOQ with high-quality Products & Services & Innovations.
Frame : *FAIRWEATHER* dodo frame (l/feather gray)
Front Wheels : *SHUTTER PRECISION* sv-8 dynamo hub × *VELOCITY* a23 rim (sil/650b/32h/msw)
Rear Wheel : *SHIMANO* fh-rs400 × *VELOCITY* a23 rim (sil/650b/32h/msw)
Tire : *ULTRADYNAMICO* cava jff tire (650b/48/blk/tan)
Handlebar : *NITTO* rm017 albastache (sil/25.4)　
Stem : *NITTO* mt-32 stem (60/db)　
Bar tape : *BLUE LUG* cotton cloth bar tape (olive)
Bar end : *NITTO* ec-01 bar end (blk)
Saddle : *BROOKS* b17 special (blk)　
Seatpost : *VIVA* seat post (sil/27.2)　
Seat Clamp: *DKG* seat clamp (sil/30.0)
Pedal : *MKS* sylvan gordito pedal (silver)　
Brake : *DIA-COMPE* DC980 canti brake (silver)
Brake Lever : *SHIMANO* R400 brake lever set　
Crank : *BLUE LUG* ymc crank (all sil/170)　
Headset : *CHRIS KING* nothreadset (os/matte jade)
Shift lever : *SHIMANO* sl-bs77 bar end shifter (9s)
Rack : *NITTO* m-1b bl special front rack (sil)
Bascket : *WALD* 137bl half (silver)　
Dynamo Light : *BUSCH+MULLER* lumotec iq-xs dynamo light (sil/80lux)　
Cable Hanger : *FAIRWEATHER* cable hanger as-10 (dull/os)
Stand : *GREENFIELD* kick stand (silver)