Posts Tagged ‘Green’

Flower Brooch New Silver Casting Flower Brooch w/ Peridot & Erinite Rhinestones Sparkling Green Pin Brooch Gift Box

  • Brand New Made By Our Brooch Designer
  • Silver Casting Brooch with Peridot Erinite Crystals
  • Round Flower Brooch Cute Affordable Brooch
  • Come with Gift Box
  • Unique beautiful brooch

Product Description
Glorious/Fabulous Silver Casting Round Circle Designe Pin in Sparkling Peridot and Erinite Green Rhinestones with brilliant Shinning very Sparkly! An absolutely gorgeous vintage brooch … Glam it up! Give every ensemble a feminine touch with this beautiful brooch. Add a dash of drama with a bold, eye-catching brooch. The brooch is beautiful crafted and authenticated attaches securely with pin clasp. Picture this lovely brooch on your favorite dress shirt scarf or jacket lapel. A beautiful accessory for any occasion. Secures with a standard pin clasp. A great gift idea or an addition to your jewel collection

Material Used: Peridot and Erinite Rhinestones adorend in beautiful round silver casting self designed
Pin Length: 1 inch diameter
Guarantee:100% Satisfaction for Material & Workmanship used in making this Jewelry

Flower Brooch New Silver Casting Flower Brooch w/ Peridot & Erinite Rhinestones Sparkling Green Pin Brooch Gift Box

Flower Brooch New Silver Casting Flower Brooch w/ Peridot & Erinite Rhinestones Sparkling Green Pin Brooch Gift Box

  • Brand New Made By Our Brooch Designer
  • Silver Casting Brooch with Peridot Erinite Crystals
  • Round Flower Brooch Cute Affordable Brooch
  • Come with Gift Box
  • Unique beautiful brooch

Product Description
Glorious/Fabulous Silver Casting Round Circle Designe Pin in Sparkling Peridot and Erinite Green Rhinestones with brilliant Shinning very Sparkly! An absolutely gorgeous vintage brooch … Glam it up! Give every ensemble a feminine touch with this beautiful brooch. Add a dash of drama with a bold, eye-catching brooch. The brooch is beautiful crafted and authenticated attaches securely with pin clasp. Picture this lovely brooch on your favorite dress shirt scarf or jacket lapel. A beautiful accessory for any occasion. Secures with a standard pin clasp. A great gift idea or an addition to your jewel collection

Material Used: Peridot and Erinite Rhinestones adorend in beautiful round silver casting self designed
Pin Length: 1 inch diameter
Guarantee:100% Satisfaction for Material & Workmanship used in making this Jewelry

Flower Brooch New Silver Casting Flower Brooch w/ Peridot & Erinite Rhinestones Sparkling Green Pin Brooch Gift Box

How to make green sand foundry molds?

Which are the ingredients and what is the proportion of them to make a good molding material for aluminium foundry?

Nothing expensive, please.

Necesisity of Component Weght Control in Green Sand Foundry

Idle situation:Consistantly achieving design weight/P.O.weight.

Possible variables causing drift from idle situation.

1. Tooling:The condition of tooling i.e. excess clearances in print leading to core shift and resulting excess weight.The tooling manafacturing through CAD/CAM and wear resistant material will help to achive this objective.

2.Core setting and mould closing process: Optimizing the core setting and mould closing such that with less clearances this can be performed.Mechanisatation of this activity will help to achive this objective. 

3.Pouring: Constant head and flow to optimize the swelling tendency of mould.Use of tundish pour will help to achive this objective. This is necessary to control the buyancy force exerted by liquid metal on mould wall and to optimise the sand additives for a given situation, pouring practices must be controlled.

4.Sand properties:This will play vital role in weight control.Optimising additives w.r.t. weght,foundry defects are the real challenge for foundry process engineer.While optimizing sand properties ,we may have to use multiple regression analysis.

The traditional approaches by foundry process control can not yield higher results. 

To start with, assuming above 3 variables are constant,start ploting average weight of 10 casings, rej% due to sand , G.C.S.,acitive clay and L.O.I. 

Once the data collection is started we can find the trend.Collect minimum of 100 batches and by doing regression analysis,we can achive optimum additives to get consistency in wt and rej% due to sand.

5.Cheistry and innculation practices also have significan impct on weght control.

In addition to all the above the basic diciplaine and good practices established by each foundry must follwed to get consistant results in any foundry.