Project #1 / Commonwealth Sprague / Clients / Media

Name

Project #1

Test Objective

Identifying an alternative cleaning process to replace TCE vapor degreasing of capacitor cans and covers.

Witnessed

No

Confidential

No

Help Implementing

No

Submission Date

01/04/1995

Representatives

Chuck Watson, Jr.

Substrates

Steel
Tin

Sample Type

Product Use

Capacitor cans and covers

Percentages Cleaned

Weight Min

Weight Max

Approximate Size

Approximate Size ID

Small

Weight Range ID

1-5 lbs

Shape

Smooth

Hardness

Hard

Shape Type

Complex

Return Samples

No

Return Sample Address

Contaminants

Cutting/Tapping Fluids
Fluxes
Lubricating/Lapping Oils
Oil

Samples Available

Yes

Pre Clean Manufacturing Step

manufacturing

Post Clean Manufacturing Step

testing

Parts Cleaned Per Week

Parts Cleaned Per Bath

Frequency

PSI

Equipments

Ultrasonics
Vapor Degreasing

Vendor

Cleaning Chemicals

Trichloroethylene

Concentration

100

Cleaning Temp

Cleaning Time

Cleaning Water Type

Tap

Problems With Current Method

Uses a hazardous solvent

Purpose of Cleaning

remove contaminants

Rinse Time

Rinse Temp

Rinse Water Type

Tap

Drying Method

No relation

Drying Time

Drying Temp

Storage Type ID

Stored

How Stored

packaged for shipment

How Long Stored

Analysis Method

No relation

Performance Test

validating electrical specifications

Comments or Concerns

www.turi.org

Summary

Aqueous cleaning chemistry, Daraclean 232, was found to effectively remove machining & stamping fluids from tin-plated steel capacitor cans & covers. With an agitated immersion process both Hydraking 32AW & Kutwell 40 were removed.

Implementation

Yes

In Progress

No

Technolog Transfer

No

Analysis Only

No

Part Picture

Yes

Default object view. Click to create a custom template, Node ID: 4201, Object ID: 4200

Project #1